Index [Italic page numbers indicate major references]
accommodation zone, 37,40,42,57, argillite, 330, 348, 352, 355, 465 present, 471 70, 78, 244 Arguello plate, 4, 13, 18 pull-apart, 360 geometry, 57 Argus Mountains, 349, 385 rhombohedral, 377 kinematics, 57 Arizona, northwestern, 37 sedimentary, 332, 477, 489, 494 actinolite, 84, 89 Arrastre Spring fault, 318,323, 331 structural, 447 agglomerates, 367 Arrow Canyon Range, 240 subsurface, 146, 448 aggregates, 84 Arrowhead Mine fault, 124, 225, 227, Bat Mountain area, 306, 307, 311, 315 Alamo syncline, 230, 232 230 Bat Mountain block, 307, 315 Aleutian subduction zone, 8 Artist Drive Formation, 288 Bat Mountain fault, 307 alkali feldspar, 185 ash, 254 Bat Mountain Formation, 307 alluvial fan deposits, 472 Ash Hill fault, 360 Beatty area, 296 alluvium, 207, 225, 240, 243. 244, Ash Meadow Quadrangle, 307 Beaver Dam Mountains, 116, 143, 272, 284, 297, 307, 356, 368, assimilation, 26, 404, 405, 409 149, 151 426, 489 asthenosphere, 2, 6 Beaver Dam Mountain breakaway, 490 alteration, 78 augite, 26, 395 Beck Spring Dolomite, 348, 350, 354 Alum area, 448, 459, 468, 471 avalanche, debris, 329 bedding, 202, 242 age, 453 Avawatz fault block, 323 geometry, 160 conglomerate facies, 448 Avawatz Formation, 318, 323, 324, bedrock, 144, 242, 243, 244, 297 siltstone-sandstone facies, 451 329, 332 bedrock scarp, 146 stratigraphy, 448 lower, 329 Belted Range tuff, 216 structure, 457 upper, 330 bending, dextral, 279 thickness, 452 Avawatz Mountains, 317, 332 Benton quadrangle, 466 Alum unit, 448, 451 southern, 317,331 Big Dune basalt center, 294 Amargosa breakaway, 388 western, 317 Big Dune Quadrangle, 314 Amargosa Chaos, 277, 289, 364, 375, Avawatz Mountains Quartz Big Smoky Valley, 471 387 Monzodiorite, 319, 329 Big Smoky Valley tuff, 448, 451, 452, Amargosa Desert, 299 Avawatz Peak, 331 468 Amargosa detachment system, 388 Aztec Sandstone, 118, 129, 478,484, biotite, 26, 29, 84, 89, 184, 185, 321, Amargosa fault, 355, 358, 360, 366, 498 369, 382, 417, 418, 434, 452, 373 age, 486, 487 457, 465, 467, 486, 488 Amargosa Narrows, 276 Bird Spring Formation, 129, 134, 137, Amargosa system, 364, 387 backthrusting, 199, 200 140, 216, 223, 238, 240, 247, Amargosa thrust, 350, 368 Badger Mountain fault, 216, 217, 230, 330, 489 Amargosa Valley, 286, 287, 289 233 Bird Spring thrust, 480, 487, 490 Ammonia Tanks caldera, 287 Bald Mountain volcanic center, 215 Bishop ash bed, 265 Ammonia Tanks Member, 253, 268, Banded Mountain Member, 114, 128, Bitter Ridge, 489, 490 287 132, 134, 147, 151. 223 Bitter Ridge fault, 493, 494 amphibole xenocryst, 405 Bare Mountain, 252, 253, 273, 275, Bitter Ridge Limestone, 118 amphibolite, 24, 33, 59, 64, 78, 80, 277, 287, 288, 289, 294, 299 Bitter Spring Valley fault, 494 83, 84, 87, 104, 106, 355, 364, Bare Mountain fault, 273, 278, 279, Black Hills Basin, 243, 244 380, 386 296 Black Marble, 277, 278 andesite, 33, 34, 215, 368, 392, 405, basalt, 13, 24, 26, 30, 32, 33, 45, 94, Black Mountains, 288, 289, 341, 358, 453, 461, 463, 466 156, 215, 228. 254, 268, 287, 363, 375, 383, 422 anhydrite, 484 290, 354, 368. 385, 392, 401, accommodation zone segments, 57, anomalies 408, 419, 434, 457. 466 70 Eu, 408 Basalt area, 465 central, 40, 42, 78 magnetic, 3 Basalt quadrangle, 466 east-tilted domain, 54 seismic velocity, 8 Baseline Sandstone, 128 faults, 373 Antelope Valley Limestone, 241 basement, crystalline, 53, 60, 100, geologic setting, 45 anticline, 23, 28, 32, 54, 156, 187, 126, 136, 137, 144, 252, 330, northern, 102, 106 197, 200, 202, 204, 228, 346, 341, 377, 378, 383, 387 paleomagnetic data, 71 349, 350, 358, 371, 458, 471 Basin and Range extension, 9, 100, southern, 368 anticlinorium, 371 101, 115, 117, 196, 207, 210 west-tilted domain, 47 Antler Orogeny, 209 Basin and Range province, 37, 78, Black Mountains segment, 58 apatite, 84 110, 156, 209, 213, 252, 266, Black Point, 409 apophyses, 25 273, 278, 283, 284, 297, 335, Black Rock Spring, 189 arc switchoff, 16 369, 388, 414, 448, 471, 473 Blackwater Canyon, 364 arc terrace, 478, 479, 483, 486 southern, 275, 478, 498 Blanco Mine area, 452, 463, 468, 471 arc volcanism, 8 northern, 181 Blue Ribbon lineament, 233 Arch Mountain, 80, 94 basins, 230, 297 Archeocyathids, 451 Bonanza King Formation, 93, 113, depositional, 243 Arcturus Formation, 181 114, 126, 127, 132, 134, 147, arenite, 355, 487 development, 473 149, 223, 233, 240, 242, 244, extensional, 448 314, 354, 368
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Boulder Canyon, 106 Cascade volcanoes, 8 Cody Mountains, 30 Boulder City pluton, 90 Cascadia subduction zone, 2, 8 Cohenour Mine, 93 Boulder Wash, 90, 93 Castle anticline, 23, 28 colluvium, 259 Boundary Canyon fault, 289, 299 origin, 31 Colorado Plateau, 45, 113, 116, 126, Bow Canyon fault, 259 Castle Mountains, 23, 32, 33 136, 150, 233, 478, 480, 488, Bow Ridge fault, 261, 269 geology, 24 489, 495 Bowl of Fire, 482, 483, 484, 490, stratigraphy, 24 Carmel Formation, 478, 485 491, 493 cataclasite, 85 Chinle Formation, 478, 480, 486, breccias, 49, 80, 85, 100, 102, 318, Cenozoic, 1, 6, 18, 123,181, 200, 487, 494 327, 332, 346, 348, 350, 353, 237, 242, 273, 305 depositional sequences, 478 354, 367, 369, 380, 451, 459, late, 232, 308, 317, 336 Entrada Sandstone, 478, 488 463, 466 Central Nevada caldera complex, 182 Glen Canyon Group, 495, 498 channelized, 107 Cerbat Mountains, northern, 54 Moenkopi Formation, 478, 480, flow, 24 Cerbat Mountains fault block, 58 487, 488 limestone, 487, 488 Chainman Shale, 182, 189, 216, 223, southwestern, 477 nonchannelized, 107 225, 238, 245 Temple Cap Sandstone, 478, 485 sedimentary, 442, 448, 468 Chemehuevi-Whipple detachment, unconformities, 478, 480, 482, volcanic, 52, 465, 468 190 485, 486, 487, 489, 494 brecciation, 241 Cherry Canyon, 202, 206 Colorado River extensional corridor, Bridge Spring, 33 Cherry Creek, 204 42, 45, 54, 58, 66, 68, 70 Bright Angel Shale, 80, 93, 110, 113 Cherry Creek fault, 204, 207 Colorado River trough, 23, 31, 78 Bristol Range, 190 Cherry Creek Summit, 202 compression, 151 Bruno Creek, 204, 206 Cherry Creek tuff, 207 conglomerates, 24, 33, 45, 49, 80, 93, Buckboard Mesa, 292 chert, 434, 448, 453, 462, 463, 465, 102, 104, 189, 215, 221, 225, Buckhom fault, 225, 227 466, 480, 481, 483 228, 230, 232, 243, 287, 308, Bullfrog Hills, 275, 277, 289, 297, Chert Ridge, 225, 227, 234 318, 323,329, 332, 348, 416, 299 Chicago Pass thrust, 373 422, 434,448, 451, 453, 459, Bullfrog Hills detachment, 276 Chinle depositional sequence, 495 463, 465, 467, 480, 482, 487, Bullion Member, 129, 149 Chinle Formation, 132, 478, 480, 497 Buried Hills, 232 486, 487, 494, 497 limestone-pebble, 480, 494, 497 Burro Trail fault, 368 age, 486, 488, 498 Connoly Wash, 115 Busted Butte, 259, 270, 272 members, 480 contact thrust, 487 Butte Valley fault, 348 Chisholm Shale, 113 Contact-Red Spring thrust, 125 chlorite, 78, 83, 84 contaminants, 401 Cactus Range, 288 chlorite phylonite zone, 83, 89 continental extension, 37, 58, 70, 78 calc-alkaline trend, 397 Chowderhead anticline, 244 continental rifting, 40, 68 calcite, 78 Chowderhead basin, 243 Cordillera, 346, 348 calderas, 182, 272, 276, 284, 290 Chuckwalla Canyon, 368, 371 Coso Range, 408 caliche, 265, 419 Chuckwalla fault, 368, 369 Coso volcanic field, 26, 408 Calico Hills, 247, 253, 273, 279, 289 Church Rock Member, Chinle Cottonwood Mountains, 416,417, Caliente caldron complex, 156, 168, Formation, 480 418,419, 421, 422, 433,434 182 Clark County, Nevada, 78, 79, 237, northern, 413,434 Caliente fault, 159 243 Cottonwood Mountains block, 414, California, 305, 345, 391 Clark Mountains, 486, 489 432 eastern, 23 Clark Range, 479, 486, 487, 490 Cottonwood Wash tuff, 182, 189 southeastern, 317,363,377 clasts, 102, 185, 215, 243, 329, 331, Cowhole Mountains, 486, 487, 490, California Basin and Range, 335, 336, 354, 417, 419, 435 , 448, 453, 494, 498 341, 343 467 Cowhole Mountains-Old Dad Callville Limestone, 110, 150 carbonate, 480 Mountain block, 488 Cambrian, 113,115 clay minerals, 355 Coyote Spring, 463 Campito Formation, 451, 457, 458, claystone, 243, 448, 468, 480, 482 Coyote Spring syncline, 223 459, 462 Clayton Valley, 468, 471 Coyote Spring Valley, 240 Candelaria Junction tuff, 466 Clery thrust, 233, 307 CP Hills, 247, 297 Candor Canyon area, 188 Clery-Bat Mountain fault, 307, 311, CP Hills thrust, 247,297 Candor Canyon Formation, 187 315 Crater Flat, 254, 276, 279, 289, 290 Candy Peak area, 146, 148 Clery-Bat Mountain thrust, 311 Crater Flat fault, 300 Canyonlands National Park, 273 clinopyroxene, 434 Crater Flat graben, 289 carbonate clasts, 480 clinozoisite, 78 Crater Flat-Lathrop Wells area, 292 carbonate crust, 42 Clover Mountains, 149 Crater Flat-Prospect Pass caldera carbonate sequence, 126 Coal Valley basin, 472, 473 complex, 286 carbonates, 150, 241, 377, 417, 434 Coaldale area, 448, 463, 468 Crater Flat Tuff, 253, 267, 276 Carmel Formation, 478, 485 age, 465 crust age, 486, 488, 498 stratigraphy, 463 continental, 346 members, 485 cobbles, 416, 420 lower, 336, 343, 409 Carmel Sea, 495 COCORP, 335 Carp Road fault, 137,142 rifted continental, 38, 40, 44, 70 Carp Summit, 137, 146 COCORP Death Valley seismic thickness, 343 Carrara Formation, 223, 233, 238, transects, 335 upper, 68, 343, 401, 409 241, 244, 245, 314 COCORP Mohave seismic transects, Crystal Pass Limestone, 115, 117 335 Crystal Pass Member, 323
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Crystal Spring Formation, 348, 350 interconnected, 278 Eastern Cordillera-Subandean thrust crystal fractionation, 26, 30 detachment footwall, 39 belt, 209 crystal fragments, 367 detachment terrane, 42, 54 Eastern Panamint duplex, 375 crystalline terrane, 46, 49 Detrital Valley, 54, 58, 59 Eastern Panamint fault system, 364, crystals, 185, 461, 465 detritus, 49 368, 371, 375, 379, 383, 386, cutoff, seismic, 6, 8 Devil's Cove, 115 388 Devil's Cove section, 116 age, 369 dacite, 78, 80, 82, 90, 104 Devonian, 114,116,440,443 eclogite, 13 Darwin Plateau, 392,408 décollement, 38, 127, 128, 132, 147, Egan Range, 184 chemistry, 395 190, 196, 238, 242, 245 Eldorado fauk, 56 mineral assemblages, 392 diabase, 348 Eldorado Mountains, 32, 33, 90, 102, mineral microprobe analyses, 392 diamictite, 348, 352, 355 106 David Mountain quadrangle, 465 diatomite, 467 accommodation zone segments, 57, Davidson Peak block, 136 dikes, 60, 71, 78, 84 , 94, 104, 119, 70 Davidson Peak fault, 136,144 206, 207 east-tilted domain, 54 Dead Mountains, 31, 32 aplitic, 358 geologic setting, 45 Death Valley, 108, 233, 252, 275, felsic, 207, 355 paleomagnetic data, 71 299, 305, 341, 346, 356, 358, igneous, 451 segment, 65 373,377, 388, 391,413 mafic, 207 southern, 40, 42, 78 central, 363 swarm, 31, 45, 49, 52, 53, 55, 66, west-tilted domain, 47 Death Valley basin, central, 339, 341 71, 350 Eldorado Valley, 491 Death Valley COCORP data, 339 Dinosaur Canyon Member, 482 Eleana Formation, 243, 247, 248, Death Valley detachment system, age, 486 277, 297 242 Dinosaur Ridge, 368 Eleana Range, 247, 297 Death Valley extensional basin, 479 diorite, 78, 453 elements Death Valley extensional corridor, dips, 261 major, 26 364, 373 displacement, 57, 78, 100, 136, 146, rare-earth, 401 Death Valley fault, 286, 318, 331 207, 209, 227, 232, 290, 318, trace, 26, 397 northern, 414 323, 331, 349, 354, 363, 375, Ely Limestone, 181 Death Valley graben, 363 383, 490 Ely Springs Dolomite, 221, 240, 314, Death Valley-Pancake Range basalt strike-slip, 42, 44 368, 369 belt, 288 Dog Bone Lake fault, 242 Ely Springs Formation, 311 Death Valley turtlebacks, 289, 363, dolomite, 113, 114, 115, 116, 117, Ely Springs Range, 189, 190 373 204, 223, 237, 244, 348, 354, Emigrant breakaway, 388 Deep Spring Formation, 457, 459 434 Emigrant Canyon, 354 deformation, 54, 67, 87, 156, 160, Dolomite Hill, 247 Emigrant Canyon quadrangle, 346 166, 168, 169, 201, 209, 213, dolostones, 126, 127, 197, 424 Emigrant detachment, 388 230, 237, 259, 336, 341, 369, domains Emigrant fault, 354, 360, 383, 385 422, 426 east-tilted, 54 Emigrant Formation, 459, 462 brittle, 156 west-tilted, 47 Emigrant riders, 385 brittle-ductile, 378 tilt-block, 38, 40, 42, 45 Emigrant subsystem, 379, 383, 387 ductile, 196 domes, 25, 33 Emigrant Valley area, 225, 230 extensional, 234 domino-block system, 204 Emigrant Valley-Papoose Lake trough, internal block, 269 drag 230 mesoscopic, 199 normal, 31 emplacement, 350 sequential, 431 reverse, 31 Enos Creek detachment, 110 strike-slip, 9 Dry Lake thrust, 244 Entrada Sandstone, 478, 488 Delamar mineral belt, 233 Dry Lake Valley fault, 185,186 epidote, 78, 84 Delamar Range, 277 Dry Mountain, 419, 426 erosion, 156, 252, 261, 495 Delamar Valley, 230, 232, 233 Dry Mountain block, 416, 423, 424, Escalante zone, 232, 233 demagnetization, 71 431, 433 Esmeralda Basin, 468,471 Denning Spring fault block, 321 Dry Mountain Quadrangle, 441 paleogeography, 468 depocenters, 45 Dunderberg Shale Member, 113, 114, deposits structural development, 468 126 structural setting, 468 alluvial fan, 472 Dunderberg zone trilobites, 240 Esmeralda Formation, 447, 470 alluvial, 213, 215, 227, 228, 230, duplex, extensional, 368 age, 453, 462, 465, 467 232, 332, 448 Dupont Mountain fault, 48, 52, 57, 65 Alum unit, 448, 451 braided stream, 468 alum area, 448, 459,468, All clastic, 205 earthquakes, 6, 8, 289 Big Smoky Valley tuff unit, 448, landslide, 57, 241 East African rift system, 38, 40 451, 452, 468 megabreccia, 468 East Desert Range, 227, 244 Blanco Mine area, 463, 468, 471 older basin, 232 East Mormon fault, 136 Coaldale area, 463, 468 volcanic, 468 East Mormon Mountains, 126, 135, Silver Peak Range, 458, 468 Desert Lake Valley, 232, 233 136, 144 stratigraphy, 448, 458, 461, 463, Desert Range, 225, 227, 230, 237, East Pacific Rise, 2, 3, 14, 15, 16 465 239, 240, 242 East Pahranagat fault, 216, 217 structure, 457, 462 Desert Valley, 230 East Pahranagat Range, 216 thickness, 452,461 detachment, 38, 39, 45, 338, 341, 388 East Pahranagat syncline, 216, 227, Twin Peaks unit, 448, 451 basal, 204 233 Weepah unit, 448, 453
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Eureka belt, 209 concave listric, 160 210, 216, 225, 230, 238, 240, Eureka Quartzite, 197, 221, 240, 311, concave-upward, 168 242, 244, 252, 265, 270, 277, 314, 368, 369, 416, 418, 423, conjugate normal, 58, 66, 433 296, 299, 307, 313, 338, 346, 434, 438 Crater Flat, 300 349, 354, 358, 363, 379, 383, Explorer plate, 5 Davidson Peak, 136,144 423, 463, 471 extension, 40, 45, 52, 59, 65, 78, Death Valley, 286, 318, 331 North Buffington, 124, 127, 148 115, 124, 151, 165, 167,181, detachment, 31, 38, 46, 48, 56, 78, oblique normal, 136, 369, 426 186,192, 196, 205, 208, 234, 83, 100, 120, 159, 232, 234, oblique-slip, 40, 206, 227, 261, 241, 243, 247, 272, 275, 288, 238, 240, 252, 272, 277, 283, 270 305, 308, 335, 343, 346, 349, 289, 297, 336, 354, 358, 458, Old Mormon Spring, 318, 319, 331 354, 363, 373, 377, 388, 391, 462, 470,473 Original Bullfrog, 289, 297, 299 409, 414, 433, 473, 479, 495, dextral, 168 Pahranagat, 215, 225, 227, 229, 498 dip-slip, 156, 161, 165, 166,168, 230, 232, 233 core complex, 207 255, 261, 425 Pahroc, 195, 189 crustal, 23, 30, 31, 32 Dog Bone Lake, 242 Paintbrush Canyon, 259, 261, 265, episodic, 191 domino-style, 204, 269 270, 273 styles, 283 Dry Lake Valley, 185, 186 Panamint, 388 synvolcanic, 188 East Mormon, 136 Panamint Valley, 331, 360, 373 East Pahranagat, 216,217 Pintwater, 242, 243 Fallout Hills, 215, 225, 232 east-border, 205 planar, 160 fans east-trending, 230 planar normal, 38, 45, 58, 132, 377 alluvial, 102, 109, 308, 330, 354, east-west striking, 368 plate-bounding, 270 420, 468, 495 Eastern Panamint, 364,368, 371, pre-Quaternary, 190 medial, 107 375, 379, 383, 386, 388 prevolcanic, 189,190 proximal, 107 Eldorado, 56 Radio Tower, 136, 142 fanglomerate, 34, 49, 57, 80, 330, extensional, 155 range-front, 207 346, 348, 349, 354, 367, 378, Fluorspar Canyon, 276, 278, 279 Rattlesnake, 188 385, 392 Furnace Creek, 286, 471 reconstruction of, 369 Farallon plate, 3, 5, 6, 9, 13 Garlock, 31, 44, 58 reverse, 31, 319, 321, 328 Fatigue Wash fault, 259 geometry, 160 right-slip, 119 Fault Basin area, 78 Gold Butte, 118, 494 roof, 368 fault blocks, 38, 45, 48, 49, 56, 58, Gourd Spring, 136, 141, 142 roof-parallel, 369 66, 156, 259, 346, 350, 359, Hamblin Bay, 491, 494 Saddle Island, 82 383 high-angle, 28, 29, 32, 78, 90, 94, Sam's Camp, 136 fault movement, 267 185, 191, 336, 380, 489 Sawmill, 197 fault scarp, 186, 213, 227, 230, 232, high-angle normal, 78, 94, 234, Sheep Basin, 243 243, 287 307, 332, 338, 471 Sheephead, 341 fault sets, 78 higher-angle, 3 68 size, 166 fault striae, 206 Horse Spring, 137,144 Soda Mountains, 332 faulting, 23, 78, 91, 156, 238, 336 Hunter Mountain, 408, 409, 414, sole normal, 368 faulting, reverse-slip, 163 422 Solitario Canyon, 259, 268, 273 faults, 29, 229 Kane Wonder, 314 South Park Canyon, 348, 349, 352 Amargosa, 355, 358, 360, 366, 373 kinematics, 155 Southern Death Valley, 363 antithetic, 45, 414, 431 large-displacement, 164, 166 Spotted Range, 243 Arrastre Spring, 318, 323, 331 Leach Lake, 321 Stagecoach Road, 261, 265, 269, Arrowhead Mine, 124, 225, 227, left-slip, 119, 491 270, 273 230 Lime Ridge, 493, 494 State Line, 479, 490 Badger Mountain, 216, 217, 230, listric, 297, 414, 425, 433 Stray Cow well, 29 233 listric normal, 38, 132, 269, 278, strike-slip, 13, 31, 40, 66, 100, Bare Mountain, 273, 278, 279, 296 377, 383, 413 110, 120, 156, 160, 234, 238, basal, 430, 431, 433 listric postvolcanic, 187 241, 244, 252, 261, 265, 267, basin-range, 473 Little Meadow, 202, 204, 208 275, 314, 321, 331, 338, 377, Bat Mountain, 307 low-angle, 29, 46, 48, 53, 78, 81, 471 Bitter Ridge, 493, 494 85, 89, 92, 136, 151, 169, 186, Surprise, 352, 360 Bitter Spring Valley, 494 187,196, 253, 272, 275, 277, synthetic, 414, 426, 428, 431 blind normal, 229 279, 283, 289, 328, 457, 462, synvolcanic, 191, 192 Boundary Canyon, 289, 299 473 tear, 200, 225, 233 Bow Canyon, 259 low-angle normal, 23, 46, 48, 53, Telescope Peak, 371 Bow Ridge, 261, 269 81, 92, 137, 169, 186, 187, 229, thrust, 151, 198, 197, 216, 217, brittle, 85, 93 252, 269, 272, 278, 289, 383, 223, 233, 241, 289, 299, 305, Buckhorn, 225, 227 448, 459 426, 489 Burro Trail, 368 lower-angle, 368 Towne Pass, 346, 356, 357 Butte Valley, 348 moderate-angle, 89 transfer, 216, 234, 284, 369, 380, caldera, 296 Mt. Davis, 49 383 Caliente, 159 Newman Canyon, 159, 166, 169 transform, 40, 68 Carp Road, 137,142 Nopah Range, 340 transverse, 58, 66 Cherry Creek, 204, 207 normal, 31,46, 49, 54, 59, 65, 68, Troy Peak, 202, 205, 207, 209 Chuckwalla, 368, 369 89, 110, 120, 129, 141, 149, Tucki Mountain, 290 Clery-Bat Mountain, 307, 311, 315 151, 189, 190,195,200,204, Tucki Wash, 414
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Tule Corral. 141 northern, 288, 289 central, 204 Ubehebe Crater, 415, 416, 422, 433 southern, 3 05 southern, 197 upper-plate, 191 Furnace Creek basin, 288, 313 Grapevine Mountains, 277, 299, 420, Van Deemen Mine, 54, 57,59, 71 Furnace Creek fault zone, 286, 363, 433 vertical, 350 373, 422, 471 Grapevine thrust, 424 Wadsworth Ranch, 202,206, 208 Furnace Creek Formation, 288 Gravel Canyon, 241 Wasatch, 233 gravels, 34, 354, 419, 448 Waterman Hills, 31 Garden Valley area, thrusts, 208 gravity high, 47, 49 Wheatgrass, 187, 190 Garlock fault, 31, 44, 58, 317, 318, gravity low, 276, 288 White River, 186, 189 328, 331, 335, 336, 341, 343 graywacke, 348 Wild Horse Pass, 234, 243 garnet, 84, 401 Great Basin, 181, 196, 208, 211, 233, Windy Wash, 259, 268, 269, 273 Gass Peak, 221, 238 244, 392, 471 Wingate Wash, 340, 341 Gass Peak plate, 238 eastern, 124, 283 Yucca Mountain, 300 Gass Peak thrust, 223, 233, 234, 238, south-central, 283 Yucca Wash, 270 244 southern, 78, 284, 335 fay alite, 184 geochemistry, 26, 391 greenschist, 364, 386 feldspar, 87, 452, 467 geology, 24,126, 346 Greenwater Range, 284, 383 fiamme, 184 structural, 255,267,368 Greenwater volcanic center, 288, 292 Fire Mountain anticline, 64 subsurface, 146,148 Greenwater volcanic field, 286, 287 Fish Haven Dolomite, 207 geometry, 1, 6, 57,147, 252, 387 Grefco mine, 467 Fish Lake Valley, 448 domino fault-block, 269 Groom Lake discontinuity, 230, 232 northern, 465, 468 thrust-belt, 200 Groom Range, 223, 232 Flamingo Cove, 93 Ghost Dance fault, 259 Guilmette Formation, 181, 182, 197, flow breccias, 33, 45 Gilbert Canyon-Petroglyph Wash 200, 201, 202, 225, 234 flows graben, 92 Gulf of Suez, Egypt, 44 andesite, 24, 52, 367, 408 Girvanella, 448, 459 Gunlock, Utah, 486 basaltic, 32, 215, 356, 419, 431 glass blebs, 419 gypsum, 273, 484 creep, 39 Glen Canyon depositional sequence, dacite, 33, 80 495 half-graben, 45, 49, 58, 59 debris, 102, 156, 468 Glen Canyon Group, 478, 480, 482, Halfpint Range, 225, 230, 233, 247, foliation, 29 487, 488, 495, 497, 498 288 lava, 182, 184 age, 485, 486 Hall Canyon, 348, 349, 350 mafic lava, 197 formations, 482 Hall Canyon granodiorite, 352 pyroclastic, 49, 52 Glendale thrust, 124, 125, 139, 147, Hall Canyon pluton, 348, 349, 352, rhyolite lava, 156 244, 490 358 rhyolitic, 32, 33, 268, 368, 488 Glendale thrust plate, 128 Halloran Hills, 330 silicic lava, 197 gneiss, 24, 33, 52, 53, 55, 56, 59, 65, Hamblin Bay fault, 491, 494 trachyandesite, 462 71, 80, 106, 252, 288, 329, 348, Hamilton Spring, 183, 188 volcanic, 23, 378, 392 355, 358, 368 Hampel Wash area, 168, 266 Fluorspar Canyon fault, 276, 278, augen, 348 Hanaupah Canyon, 387 279, 289, 294, 299 biotite, 330 Hancock Summit, 217 folding, 23, 65 garnet-bearing, 84 hanging walls, 38, 39, 49, 52, 55, 57, range-scale, 387 granodiorite, 103 67, 92, 124, 126, 128, 132, 147, folds, 28, 85, 199, 216 hornblendite, 323 149, 160, 169, 197, 199, 202, drag, 217 melanocratic, 107 204, 207, 221, 225, 229, 240, fault-bend, 229,244 quartzofeldspathic, 78, 83, 84 , 87, 270, 311, 350, 354, 380, 382, mesoscopic, 201 348 387, 425, 431 footwall, 160, 206, 225, 240, 311, Gold Butte fault, 118, 494 Happy Canyon, 360 346, 382, 387, 423 Gold Butte granite complex, 100, 102, Harkless Formation, 451, 459, 462 Fortification Basalt, 118 106, 118, 119, 120 Harmony Hills Tuff, 187, 215 Fortymile Canyon, 268 Gold Butte town site, 107 Harper Lake detachment, 337 fractional crystallization, 26, 397, Golden Door mine, 53 Harrisburg breakaway, 388 404, 409 Golden Gate Range, 209 Harrisburg detachment, 364, 380, 385, fractionation, 343, 397, 405, 408 Golden Gate thrust, 209 386, 388 Freiberg thrust, 209 Goodsprings, 487 Harrisburg fault, 371, 372, 379, 380, Frenchman Mountain, 110, 111, 117, Goodwin Formation, 201 382 120, 482, 490, 491, 495 Gourd Spring fault, 136, 141, 142 Harrisburg Flats area, 378, 380 Frenchman Mountain basement, 102, graben, 205, 261, 270, 308, 313, 424 Harrisburg subsystem, 379, 386 104 Grand Canyon region, 110, 113, 117 Hart Peak, 33 Frenchman Mountain block, 99, 118, Grand Wash Cliffs, 54, 58 heat flow, 288 119 Grand Wash segment, 58 Heaven's Well basin, 244 rotation, 99 granite blocks, 104 hematite, 81 tectonic rotation, 110 granites, 106, 107, 323, 348, 355 Heterocypris, 453 translation, 99 rapakivi, 102, 103, 106 Hidden Canyon, 110 Funeral Formation, 287 red, 103 Hidden Valley, 11, 311 Funeral-Fumace Creek Wash area, 292 granitoids, 364, 418, 420, 436, 437, Hidden Valley Dolomite, 307, 314, Funeral Mountains, 252, 276, 287, 464, 468 416 288, 299, 315, 420, 422, 433 granodiorite, 59, 64, 349 Hidden Valley Formation, 442 central, 289, 305,313 Grant Range, 195, 210 Highland detachment, 190
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Highland Range, 190 Middle Member, 132 Limnocythere, 453 Highland Spring Range, 32, 48, 58 stratigraphic units, 482,494 Limnocythere sp., 453 Hiko Tuff, 156,167, 186, 187, 215, undifferentiated, 482 Lincoln County, 169, 237, 244 232 Keane Wonder fault zone, 314 lineations Homer Mountain, 31, 32 Keeler Canyon Formation, 378 fault-slip, 265 homocline, 244 Kershaw Canyon, 159, 163 mineral, 349 Hoodoo Hills Havoc, 243, 244 Keystone graben, 414, 415, 425, 426, Lippencott Member, 416, 424, 434, Hooper Canyon, 197 431, 433 440,443 Hooper Canyon window, 197, 201, Keystone thrust, 148 litharenites, 483 202, 204 kinematics, 40, 44, 57, 192, 205, lithosphere, 2, 3, 6, 8, 391 Hoover Dam area, 90, 91 267, 363 lithrudites, 483 hornblende, 84, 89, 184, 185, 382, evolution, 44, 66, 70, 382 Little Chief granite porphyry, 380 452, 465, 467 history, 118, 141,265 Little Chief stock, 346, 348, 349, hornblende phenocrysts, 418 Kingston Peak, 355 350, 358, 371, 386, 387 hornblendite, 329 Kingston Peak Formation, 348, 350, Little Meadow Creek, 205 hornfels, 453 352, 380 Little Meadow fault, 202, 204, 208 Horse Spring fault, 137,144 klippen, 92, 139, 150, 223, 349, 350, Little Meadow Formation, 197 Horse Spring Formation, 80, 82, 93, 355, 462 Little Piute Mountains, 190 100, 101, 117, 118, 120, 243, Knob Hill pluton, 71 Lost Burro Formation, 311, 314, 416, 278, 308 Kokoweef syncline, 487 424, 434, 440, 443 Horse Spring Valley, 481, 482, 483, Lovell Wash Block, 482, 490, 491, 489, 490, 495, 498 lacustrine, 24, 461, 468 493, 495 Horse Spring Wash, 118 Lake Mead area, 31, 54, 77,101, 110, Lovell Wash Member, 118 horst, 78, 308, 313 111, 115, 116, 117, 119, 490, Lower Allochthon, 364, 378, 382, Hualapai Valley, 58 491 383, 385, 388 Hunter Mountain, 360, 409 evolving shear zone, 77 Lucy Gray Range, 58 Hunter Mountain fault, 408, 409, 414, Lake Mead fault system, 100, 119, 120 Lunar Crater basalt field, 288 422 Lake Mead shear zone, 67, 68 Lund Formation, 183 Hurricane Cliffs, 485 Laketown Formation, 126, 241 Lyndon Limestone, 93, 113, 117 hydrocarbon exploration, 44, 70 LANDSAT images, 354 landslides, 244, 352 magma, 277, 343, 391, 401, 409 Iceberg Ridge section, 116 deposits, 468, 472 mixing, 26, 30, 404, 405, 409 Idaho-Wyoming thrust belt, 199 Laramide Orogeny, 1, 10, 18 ponding, 343 imbricate fault zone, 259 Las Vegas area, 233 magmatism, 1, 30, 391 Indian Springs Quadrangle, 237, 245 Las Vegas extensional basin, 479, magnetite, 330, 392 Indian Trail formation, 247 483, 486, 488, 489, 490 magnetization, 53, 55, 57, 71, 110 Inyo-Mono, 284 Las Vegas Range, 237, 238, 243 Manakacha Formation, 110 Inyo Mountains, 349, 497 Las Vegas Range-Sheep Range block, Manly Peak, 346, 348 iron 124 Manly Peak pluton, 348 concentrations, 483 Las Vegas Range-Spring Mountains mantle, 181, 409 ferric, 358 block, 488 lower, 8 isochrons, 3, 6 Las Vegas shear zone, 490 upper, 288 isotopic analyses, 397 Las Vegas Valley shear zone, 44, 67, mantle melts, 404 Ivanpah Range, 486 68, 238, 244, 272, 284, 286 maps Las Vegas Wash, 118, 119 isopach, 115, 116 Jack Springs tuff unit, 452, 463, 467 Last Chance Range, 440 slab geometry, 9 Jail Canyon, 348, 349, 350 Last Chance system, 349 Marble Canyon Quadrangle, 442 James Bay, 94 Last Chance thrust, 423, 424, 433 Marble Canyon thrust, 233, 423 Joana Limestone, 181, 182, 216, 221, Late Neogene, 225 marble, 350, 423, 468 241 Lathrop Wells, 294 marble pendant, 321 Johnnie Formation, 238, 239, 242, lavas, 288, 392, 397, 401, 408, 409, margins 245, 315, 348, 350, 353, 354, 463 continental, 38, 40, 66 372, 378, 380 andesitic, 156 passive, 38, 40, 66 Juan de Fuca plate, 5 basaltic, 254 marl, 419, 422, 431, 434 Jumbled Hills, 215, 223, 227, 230, eruptions, 284 Maynard Lake fault zone, 216, 221, 232, 233, 234 intermediate-composition, 32, 45 225, 228 silicic, 32 McCullough-Eldorado volcanoes, 90 Kaibab limestone, 127, 136, 146 Lavinia Wash, 487, 490, 494 McCullough Formation, 186 Kane Springs Wash caldera, 215 Leach Canyon Formation, 188 McCullough Mountains, 28, 32 Kane Springs Wash volcanic center, Leach Canyon tuff, 183, 185, 188 McCullough Range, 54, 58, 90 156 Leach Lake fault zone, 321 Meadow Valley Mountains, 150, 151, Kane Wash Tuff, 215, 228, 229, 232 leucogranite, 104 497 Kane Wash volcanic suite, 139 Lime Mountain, 149 Meadow Valley Wash, 156 Kawich-Greenwater rift, 284, 288, Lime Ridge fault, 493, 494 mechanisms, focal, 272 290,294,297,299 limestone, 113, 127, 129, 139, 146, megabreccias, 100, 229, 232, 422, Kayenta Formation, 129, 132, 146, 197, 215, 223, 237, 241, 243, 423 478, 480, 482, 484, 487, 491, 244, 287, 308, 311, 348, 434, melts, 391, 401 494, 497 448, 451, 453, 465, 483 partial, 408 facies, 482 limestone breccia, 487, 488 silicic, 32
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Mendocino fracture zone, 3, 5, 17 Mohave Lake segment, 64 southern, 23, 37,123, 213, 237, Mercury quadrangle, 241 Mojave block, 335, 336 480, 481 Mescal Range, 479, 486, 489, 490, Mojave COCORP data, 337 southwest, 251 498 Mojave Desert, 30, 31, 478, 486 western, 447 Mesozoic, 123,127,147,195, 237, arc terrane, 478 Nevada Formation, 253 247,305 eastern, 477 Nevada Test site area, 230, 243, 244, early, 477, 489 Mojave region, 336, 341 247, 283, 289 Mesquite basin, 146, 169 Mojave volcanic belt, 26 Nevada volcanic field, 247, 248 Mesquite Pass thrust, 487 Mollusk Mine thrust, 487, 489 New York Mountains, 489 Mesquite Spring basalt flows, 420 Monitor Butte Member, 480 Newark Canyon Formation, 209 Mesquite Spring tuff, 419, 420, 433 Monotony Tuff, 183, 185, 188, 216, Newberry Mountain, 32, 46, 48, 102, metacarbonate, 329 232 106 metagabbro, 59, 64 Monte Cristo Formation, 92, 129, 149 Newman Canyon detachment fault, metagranodiorite, 349 Monterey plate, 4, 13, 18 159, 166, 169 metamorphism, 196, 349, 358, 386 monzodiorite, 94 Nine Mile fault zone, 227 mica, white, 330 Moon Cove fault, 78, 80, 81 noncoaxiality, 39 Mica Peak, 107 Mormon Mesa basin, 146 Noonday Formation, 245, 252, 348, micrite, 484 Mormon Mountains, 78, 137, 150, 350, 353, 354, 372, 378, 380, microbreccia, 83 245, 490 387 microgranite, 106 central, 127, 129, 135 Nopah Formation, 113, 114, 126, microlites, 33 eastern, 134, 142, 144, 150 128, 129, 132, 147, 150, 240, micropegmatites, 350 northeastern, 147 241, 311, 354, 423 Mid Valley region, 278 southern, 125, 127, 128, 135, 139 Nopah Range, 336, 340, 341, 368, midcrust, 341 western, 151 373 Middle Allochthon, 364, 378, 382, Mormon Mountains dome, 129 Nopah Range faults, 340 383, 385, 386, 388 Mormon Pass fault, 243 North America, edge reconstructions, 9 migmatite, 104 Mormon Peak detachment, 132, 135, North American plate, 2, 10 Military Canyon formation, 323 139, 147, 150 North Buffington fault, 124, 127,148 Miller Mountain quadrangle, 466 Mormon thrust, 125, 132, 137, 147, North Muddy Mountains, 124, 127, Mine Camp block, 307, 315 150, 244 128, 129, 135, 149 Mine Mountain, 247 Mormon thrust plate, 129, 146,147 North Pahroc Range, 181,190 Mine Mountain thrust, 247 Moss Back Member, 480 North Virgin Mountains, 115, 116, Mineral Ridge, 458, 470, 471 Mt. Carmel Junction, 486 117 Mineral Ridge detachment fault, 462, Mt. Davis fault, 49, 59, 65 Nova basin, 432, 433 468, 473 Mt. Perkins basin, 65 Nova Formation, 346, 353, 354, 356, minerals, opaque, 467 Mt. Perkins block, 49,57, 59, 60 357, 359, 360, 383, 385, 392, Mio-Pliocene, 391 Mountain Pass Rhyolite, 487 409 Miocene, 23,186,188,307 Mountain Springs Formation, 114 Nova Formation fanglomerate, 408 late, 318, 363,366,373 Muav Formation, 113,115 Nova Formation trough, 408, 409 middle, 318,447 Muddy Creek Formation, 91, 118 Nova Formation volcanic sequence, upper, 447 Muddy Mountain thrust, 124, 125, 405 Mississippian, 115 128, 244 nuclear waste, 252 Moapa Peak, 128, 147,148 Muddy Mountains, 124, 148, 243, 490 Nye County, Nevada, 195, 237 Moapa Peak shear zone, 135, 144,146 Muddy-North Muddy Mountains block, Mockingbird Mine fault, 53,59 124 Oak Spring quadrangle, 297 models mudstone, 417, 418, 434, 480, 481, Oasis Valley caldera, 253 crustal extension, 391 482, 483 oil fields, 44 detachment fault, 283, 299 Mule Deer Ridge, 243 Old Dad Mountain, 487, 490, 494 extensional volcanism, 409 Mule Spring fault, 318, 319, 331 Old Mormon Spring fault, 318,319, fixed rotational axis, 68 Mule Spring Formation, 448, 459, 331 kinematic, 37, 68, 91, 142, 386 462 olivine, 8, 26, 395, 434 magmatic underplating, 343 Murray fracturezone , 3, 10 opaques, 184, 185 Panamint core complex unroofing, muscovite, 84, 358, 380 Original Bullfrog fault, 289, 297, 299 386 mylonites, 31, 45, 49, 54, 83, 84. 85, orogen, extensional, 335 petrogenetic, 401 369, 383 Overton Arm, 490 plate-boundary fault, 270 mylonitization, 368 Overton conglomerate member, 128 pure-shear, 391 Owl Creek Detachment, 110 rollover, 430, 431 Navajo Sandstone, 478,484 Owl Rock Member, 480 simple shear, 391 age, 486 oxides, 395 thrust, 244 Needles Range Group, 182, 183, 189, iron, 83 volcano-tectonic, 283, 299 229 manganese, 81 Moenave Formation, 129, 132, 146, Needles Tuff, 232 478, 480, 487, 491, 494, 497 Nellis Air Force range, 213 Pacific plate, 3, 4, 9 age, 486 Nelson fault block, 56 Page Sandstone, 485 stratigraphie units, 482,494 Nelson plutons, 90 Pagonip Group, 241, 244, 311, 314, undifferentiated, 482 Neogene, 99,155 319, 348, 360, 368, 423 Moenkopi Formation, 118, 478, 480, Nevada, 77, 99,195 Pahranagat area, 213 487, 488, 494, 495, 497 eastern, 181 Pahranagat fault zone, 215, 225, 227, Mohave Lake, 64 southeastern, 155 229, 230, 232, 233
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Pahranagat Quadrangle, 214, 225, 232, Pilot Shale, 182, 221, 223 quartz, 28, 83, 84, 89, 184, 185, 404, 233, 234, 243 Pinto Peak, 392, 408 418, 435, 448, 452, 480, 481 eastern section, 215 chemistry, 395 quartz arenites, 486, 487 western section, 216 mineral assemblages, 392 quartz monzonite, 78, 80, 90, 94, 104, Pahranagat Range, 215, 216, 221, mineral microprobe analyses, 392 348, 377 232, 233 Pinto Valley, 482, 483, 484, 490, quartz phenocrysts, 434 Pahranagat shear system, 221 491, 493 quartz xenocrysts, 392, 404 Pahranagat Valley, 227, 228, 230, 232 Pintwater anticline, 242 quartzite, 223, 237, 243, 329, 348, Pahroc, 184,185 Pintwater Cave, 240, 241 350, 355, 434, 451, 459, 468, Pahroc fault, 185, 189 Pintwater fault, 242, 243 480, 481, 483 Pahroc sequence, 183 Pintwater Range, 225, 227, 230, 233, basal, 348 Pahrump Group, 252, 378, 387 238, 240, 242, 244, 272, 276, Quartzite Mountain, 238 Pahrump Valley area, 284 278 quartzose, 348 Pahute Mesa area, 286, 287, 288, 290 Pintwater thrust, 240, 244 Quaternary, 185, 225, 318 Paintbrush Canyon fault, 259, 261, Pioche-Marysvale igneous belt, 233 Queantoweap Sandstone, 150 265, 270, 273 Pioche mineral belt, 233 quiescence, 209 Paintbrush Tuff, 216, 253, 265, 267, Pioche Shale, 78, 80, 113 Quiet Period, 10 273, 294, 300 Pioneer fracture zone, 3, 12 Quinn Canyon caldron complex, 208 Paiute Ridge quadrangle, 292 Piute Wash hills, 32 Quinn Canyon Range, 182, 184, 195, Pakoon Dolomite, 150 plagioclase, 28, 84, 85, 184, 185, 210 paleocurrents, 102 382, 392, 404, 405, 408, 434, northern, 197 patterns, 110 467 paleomagnetism, 110 microlites, 392 Racetrack thrust, 423, 433 paleostress, 165, 267 phenocrysts, 404 Racetrack Valley, 414, 415, 422, 423, paleovalley, 182, 216, 480, 494 xenocrysts, 404 424, 426, 431, 433 Paleozoic, 111,115,117 plates Racetrack Valley block, 423 upper, 181 lower, 39 Radio Tower fault, 136, 142 Palmetto Formation, 462 upper, 38 radioactive waste, 284 palynomorphs, 486 Playground thrust, 489 Rainbow Gardens area, 100, 101,107, Panamint anticlinorium, 349 Pliocene, 185 118 Panamint block, 359 plugs, rhyolite, 25, 26, 29, 33 Rainbow Gardens Member, 118, 139 rotation, 359 Plutonium Valley accommodation Rainbow North subarea, 170 Panamint Butte, 409 zone, 244, 245 Rainier Mesa Member, 253, 268 Panamint core complex, model, 386 Plutonium Valley quadrangle, 245, 292 ramps Panamint fault system, 388 plutons, 45 footwall, 232 Panamint Lake, 352 granitic, 284, 346 frontal, 197 Panamint metamorphic complex, 345, granodiorite, 52, 57 lateral, 216 358, 388 intermediate, 55, 71 sand, 265 exposure, 345, 358 quartzmonzonite, 55 thrust, 240, 241 uplift, 345 silicic, 55, 65, 71 Rand thrust, 337, 338 Panamint Mountains, 288, 290, 340, Pogonip Group, 126, 197, 201, 202, Ranger Mountains, eastern, 241 346, 363, 375, 392 209, 221, 223, 240 Rattlesnake fault, 188 central, 349,358,377,388 middle, 202 Rattlesnake Spring, 189 northern, 377 Pogonip Limestone, 368 Recent, 363,373 tectonics, 364 Point of Rocks, 278, 279 reconstruction tectonics, 3 78 poles of rotation, 3 North American edge, 9 unroofing, 377 Poleta Formation, 451, 458, 459, 462 palinspastic, 488 Panamint Valley, Caliofrnia, 109, porphyroclasts, 87 sedimentary basins, 477 377, 385, 388, 391, 408 post-Hiko tuff, 185, 188, 190 recrystallization, 85 Panamint Valley fault, 331, 360, 373 potassium, 78 Red Mountain, 278 Papoose Lake Member, 114, 126 pre-extensional structures, 423 Red Pass Range, 331 Papoose Range, 225, 228, 233 pre-Quaternary fault, 190 Red Sandstone, 307 Parautochthon, 364, 3 78 pre-Quatemary Highland detachment Red Top, 188 partitioning, strain estimates, 155 system, 191 red beds, 127, 129, 487 Patsy Mine Volcanics, 52, 57 pre-Glen Canyon Group thrust, 489 Redrock Valley Tuff, 287 Pavits Spring, 287 Prospect Mountain Quartzite, 126, 200 Redwall Limestone, 115, 117 pegmatite, 78, 80, 83, 84 Prospector Pass caldera segment, 294 Reed Formation, 457, 458, 459, 462, perlite, 368 proto-Panamint Mountains, 408 470 Petrified Forest Member, 480, 483, protomylonite, 83 reflector, Rand thrust, 337, 338 494 Prow Pass Member, 277 Rest Spring Shale, 423 age, 485 Puget Sound, 8 Rhodes Tuff, 368, 372, 375, 383, 387 Petroglyph Cliff ignimbrite, 183 Puma plateau, 210 rhyodacite, 33 Petroglyph Wash fault, 92 pumice, 25, 33, 183, 184, 185, 367, rhyolite, 24, 26, 33, 45, 268, 292, Petroglyph Wash klippen, 92 461, 465, 467 405, 409, 461, 466, 487, 488 petrography, 392 silicic, 268 rhyolite clasts, 452 phenocryst, 28, 33, 183, 184, 185 pumice breccia, 25, 33 rifting, 39, 290, 346, 348 phyllite, 453, 466 pumice lapilli, 184, 419 continental, 40, 68 phyllonite, 85 pyroxene, 185, 392, 408 propagating, 6, 9 Pigeon Canyon, 110 pyroxene phenocrysts, 408 volcano-tectonic, 284
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Rimrock Canyon, 202 Salsberry Pass, 368 Sheephead fault zone, 341 Rimrock plate, 201 salt deposits, 356 Shinarump Member, 480, 481,483, Rimrock thrust, 202, 204, 206, 207 Sam's Camp fault, 136 487, 494, 497 Rio Grande rift, 40 San Andreas boundary, 2 lithofacies, 481 River Mountain stratovolcano, 119 San Rafael Group, 478, 485, 488 Shingle Limestone, 202 River Mountains, 90, 91, 119, 120, formations, 485 Shingle Pass ignimbrite, 183 491 sand seas, 111 Shingle Pass tuff, 182, 183, 184, 197, eastern, 78 sands, 34, 354, 468 204, 205, 216 River Mountains-Hoover Dam- sandstone, 24, 33, 52, 93, 102, 110, Shnabkaib Member, 487, 494 Boulder Wash volcanoes, 90 113, 118, 126, 197, 237, 243, shortening, 200, 204, 209, 331 rocks 287, 307, 311, 323, 326, 329, crustal, 196, 480 andesitic, 192 348, 367, 416, 434, 448, 451 regional, 31 basement, 340, 392 conglomeratic, 481 Shoshone Mountain, 247 batholith, 346 sanidine, 26, 29, 33, 184, 185, 330, Shoshone Volcanics, 288, 383 carbonate, 297, 350, 354, 355 405, 465, 467 Sidehill Spring Formation, 197, 199 clastic, 214, 253, 297, 348 sanidine phenocrysts, 418, 434 Sierra Nevada, 358 crystalline, 46, 52, 57, 65, 78, 80, Sawmill Canyon, 197 Sierran magmatic belt, 1 150, 319, 331, 343, 489 Sawmill Canyon window, 197, 204 Silent Canyon caldera complex, 286, dike, 33 Sawmill graben, 156, 160, 163, 169 287 granitic, 453, 457 Sawmill thrust, 197, 200, 202, 209 sills, 33, 84, 355 granitoid, 323, 329, 330 Sawmill thrust fault, 197 silt, 468 hypabyssal, 488 scarps, 207 siltstone, 24, 33, 80, 93, 104, 197, igneous, 485 schist, 85, 106, 252, 288, 348, 350, 237, 243, 287, 308, 323, 327, intrusive, 78, 197 466, 468 329, 331, 435, 448, 451, 453, lower plate, 47, 54 biotite, 89 459, 461, 463, 465, 468, 480, metamorphic, 24, 33, 53, 102, 276, chlorite, 104 482, 484, 487 288, 318, 332, 349, 358, 377, mica, 78, 80, 104, 348 Silurian, 442 386, 453 Schwaub Peak anticline, 315 Silver Peak Range, 458, 471 metasedimentary, 252, 323, 329, Schwaub Peak area, 306, 315 age, 462 348, 468 Schwaub Peak thrust, 306, 313, 314 conglomerate facies, 459 metavolcanic, 318, 323, 329, 330, S co field Canyon, 202 shaly facies, 461 332 scoria, 254 siltstone-sandstone facies, 459 mylonitic, 78 Scotty Wash Quartzite, 181, 182 stratigraphy, 458, 461 plutonic, 49, 66, 90, 102, 318, 332 Seaman breakaway, 190, 192 structure, 462 pyroclastic, 23 Seaman Range, 181,190 thickness, 461 sedimentary, 24, 33, 49, 65, 78, 80, Seaman-Stampede system, 191 Silver Peak region, 448 92, 156, 168, 181, 197, 232, sedimentation, 415, 420, 495 Silver Peak volcanic center, 458, 462 244, 284, 287, 289, 307, 318, clastic, 209 Simonson Dolomite, 202 329, 332, 346, 348, 448, 470, miogeoclinal, 377 Sinawave Member, 485 479, 486 synorogenic, 413 Skidoo monzogranite, 378, 380 silicic, 30 seismic data Skidoo pluton, 353 tuffaceous, 57 Death Valley COCORP, 339 slab gap, 3, 12, 17, 18 upper plate, 47, 54, 66, 78 Mojave COCORP, 337 slab window, 3, 5, 12,15, 18 volcanic, 24, 26, 33, 34, 56, 71, seismic transects, 335 slabs 90, 139, 156, 168, 197, 202, seismicity, 2, 227, 288 duration, 8 214, 230, 253, 272, 284, 287, serpentinite, 451 flat, 18 290, 307, 326, 348, 355, 359, Sevier belt, 479, 486, 488, 490, 491, geometry, 1, 6 366, 368 495 subducting, 1, 8,19 volcaniclastic, 57, 230, 487 Sevier Desert, 40 thermal reconstruction, 10,11, 12, Rocky Mountain thrust belt, 209 Sevier hinterland, 196, 209, 211 14 rollover, 414, 424 Sevier orogenic belt, 196, 210, 233 thermal state, 1, 6,9,19 rotation, 146, 234, 247, 265, 270, Sevier orogeny, 150, 213, 216, 230 thermal state maps, 9 289, 311, 331, 371, 387, 415, Sevier thrust belt, 123, 196, 204, 209, Slaughterhouse Canyon sequence, 489 426 213, 238 Sleeping Butte, 292 differential, 431 Sevy Formation, 202, 209, 241 slickensides, 149, 221, 294 fixed axis, 68 shales, 238, 459, 462, 463, 468, 480, sliding stratal, 414, 426 482, 483, 484 gravitational, 244, 289 tectonic, 110 Shasta Valley avalanche, 110 horizontal, 289 vertical-axis, 265, 269, 270 shear zone, evolving, 77 Smoky Hills, 247 Rover Mountains volcano, 90, 91 Sheep Basin, 243 Soda Mountains fault zones, 332 Ryan quadrangle, 307, 313 Sheep Basin fault, 243 sodium, 78 Sheep Range, 215, 221, 223, 227, Solitario Canyon fault, 259, 268, 273 Saddle Island detachment, 46, 77, 92, 237, 243, 276, 278, 289 Sourdough Limestone, 350 100 northern, 221, 232, 243 South Park Canyon fault, 348, 349, lower plate, 83 Sheep Range breakaway, 243 352 upper plate, 78, 100, 104, 119 Sheep Range detachment, 232, 234, South Park Canyon pluton, 348 Saddle Island, 46, 54, 55, 78, 102, 104 242, 244, 248 South Virgin Mountains, 120 Saddle Island fault, 82 Sheep Range fault, 234 Southern Death Valley fault zone, 363 Saline Valley, 408, 409, 414, 432 Sheephead Andesite, 368, 372, 375 Southern Egan Range, 197
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Specter Range, 252, 272 Tapeats Sandstone, 78, 80,93, 113, triple junction, 16 spectrometry, fluorescence, 397 126, 245 Mendocino, 16 sphene, 84 tectonics, 3, 30, 119,123, 284, 317, Pacific-Vancouver-Farallon, 3 spherulites, 33 369, 420 Troy Canyon area, 196 Spotted Range, 225, 232, 234, 238, compressional, 318 Troy Peak fault, 202, 205, 207, 209 243 extensional, 318,447 Tuber Canyon, 349, 350 Spotted Range fault, 243 Telescope Peak area, 346, 348, 358, Tucki Mountain, 346, 354, 379, 382, Spotted Range fold, 227 363, 379, 380 392, 414, 422, 430 Spotted Range-Mine Mountain zone, Telescope Peak fault, 371 Tucki Mountain detachment system, 284 Telescope Peak quadrangle, 346 364, 379, 388 Spotted Range thrust, 241,244, 247 Temple Cap Sandstone, 478, 485 Tucki Mountain fault system, 290 Spotted Range thrust belt, 227 members, 485 Tucki Mountain normal fault system, Spotted Range thrust plate, 225 terrane, crystalline, 54, 55, 59, 66 414, 415, 432, 433 spreading systems, 2, 6 Tertiary, 135,141,182,195, 207, Tucki Mountain system Pacific-Monterey, 5 208, 214,216, 349,415,420, Emigrant subsystem, 379, 383,386 sea-floor, 3, 15 434 Harrisburg subsystem, 379, 386 Spring Creek, 202, 206 The Prow, 255, 268, 272 Tucki Wash, 358, 380 Spring Mountains, 114, 124, 148, Three Lakes Valley, 242, 245 Tucki Wash fan, 356 237, 244, 289, 480, 487, 498 thrombolites, 117 Tucki Wash fault, 414 Spring Mountains block, 124, 486, Thrust m, 209 tuffs, 156, 227, 232, 261, 284, 287, 488, 498 thrusts, 195, 209, 305 297, 326, 331, 368, 417, 420, Spring Mountains-Las Vegas Range thrust belts, 202 422, 434 , 451, 453, 459, 463, block, 479 Thumb Member, 100, 117, 118, 119, 465 Spring Mountains Ranch, 483 120, 243 air-fall, 205 Spring Range, 54, 58 breccias, 101,102,107,118, 120 air-flow, 24, 467, 468 Springdale Sandstone Member, 482 Tickaboo-Desert Valley basin, 230 ash-flow, 24, 29, 32, 45, 139, 156, Square Top Mountain, 149, 151 Tickaboo Valley, 230, 232 182, 197, 214, 215, 230, 232, Square Top Mountain thrust, 150 tilt-block domain boundaries, 40,42, 253, 259, 290, 405, 467, 487 Stagecoach Road fault, 261, 265, 269, 45 basal, 33 270, 273 tilting, 38, 40, 45, 47, 49. 53, 56, 58, basaltic, 288 Stampede detachment, 190, 192 65, 68, 119, 143, 165, 234, 265, bedded, 45, 156 Starvation Canyon, 364 268, 276, 319, 330, 359, 415 interbedded, 244 State Line fault, 479, 490 Timber Mountain Anticline, 204 lapilli, 367, 453 Stirling Formation, 238, 239, 240, Timber Mountain caldera, 287, 292, lithic, 24 314, 315, 323, 348, 350, 354, 294 older, 287 368, 373, 387 Timber Mountain-Oasis Valley caldera rhyodacite, 26 stock, granitic, 201 complex, 255, 268, 286, 290, rhyolite, 33, 52, 462, 488, 497, Stonewall Mountain, 292 292 498 strain, 278 Timber Mountain Tuff, 216, 253, 267, silicic, 284, 288, 461 strain partitioning, 155,166 273, 278, 287, 288, 290,297 vitric, 461 estimates, 155 Timpahute lineament, 233 Tule Corral fault, 141 strain rate,s 8 Timpahute Range, 209, 225, 234 Tule Springs detachment, 132, 135, stratigraphy, 23, 24, 99, 111, 117, Tin Mountain, 426 142,150 156,197, 348, 366, 415,434, Tin Mountain block, 416, 418, 420, Tule Springs Hills, 78, 125, 126, 127, 448, 479, 480 422, 423, 424, 433 132, 136, 139, 142, 149, 490 stratovolcanoes, 90 Tin Mountain Quadrangle, 434,440, Tull Springs Hills allochthon, 490 Stray Cow well fault, 29 442 Tule Springs Hills-Eastem Mormon stress, 6, 267, 269 Tin Mountain rollover, 415, 425, 433 Mountains transect, 125 stress axes, 166,170,172,178, 272 Titus Canyon Formation, 299, 420 Tule Springs thrust, 125, 132,147, stress field, 272 Tiva Canyon Member, 253, 265, 267, 244 striae, 265 268 Tule Springs thrust plate, 132, 136, striatums, slickenside, 29 Tom and Cull Wash, 483, 484, 489 139, 150 Subandean belt, 210 tonalité, 59, 64 turtlebacks, 289, 363, 373, 422 subduction, 1, 18, 30 Topopah Spring Member, 253, 268 Twin Peaks unit, 448, 451 subduction rate, 2 Toquop chaos, 136, 142 Twin Springs Wash, 107 subduction zone, 1, 6, 8 Toquop Gap, 136 subfeldsarenites, 483 Toroweap Point, 110 Ubehebe basin, 415, 420, 433 subfeldslutites, 483 Towne Pass, 392 Ubehebe Crater, 420 subsidence, 495 Towne Pass fault, 346, 356, 357 Ubehebe Crater block, 416, 417, 422, Sultan Formation, 115, 117, 323 trace elements, 26 424 Summit thrust, 127 Trail Canyon area, 368, 372, 383 Ubehebe Crater fault, 415, 416, 422, Summit-Willow Tank thrust system, Trail Canyon Volcanic Sequence, 367, 433 124 369, 371, 372, 375, 383, 387 Ubehebe Peak Quadrangle, 443 Surprise breccia, 357, 360 Tramp Ridge block, 110, 111, 115, Ubehebe Sandstone, 417,420, 422, Surprise Canyon, 348, 349, 352 117 432, 433, 434 Surprise Canyon alluvial fan, 109 transfer zone, 244 subunits, 418 Surprise fault, 352, 360 transport, tectonic, 78 Ubehebe thrust, 423, 433 syncline, 28, 227, 230, 238, 241, 471 transverse zone, 44 ultramylonite, 83 Syncline Ridge, 244, 247 Trappman Hills. 288 Uncompahgre Highlands, 482
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unconformities, 478, 480, 482, 485, Wadsworth Ranch normal fault system, Willow Beach area, 59 487, 489, 494 202, 206, 208 Wilson Cliffs, 480, 481, 484, 486, unroofing, 377,386,388 Wah Wah Springs Formation, 182, 490, 494, 495 uplift, 143, 209, 319, 345, 360 189 Wilson Ridge, 46, 47, 54, 56, 80 Upper Allochthon, 364, 378, 383 Walker Lane, 233 Wilson Ridge pluton, 90, 91, 92, 93, Utah Walker Lane Belt, 232, 252, 272, 279, 95, 106, 119 central, 40 283 Windfall Formation, 199 southwestern, 478, 482, 484, 485 Wamp Spring basin, 240 Windous Butte Formation, 197, 207 warping, isostatic, 31 Windy Wash fault, 259, 268, 269, 273 Valley of Fire, 481, 483, 490, 495 Wasatch fault zone, 233 Wingate Sandstone, 488 Van Deemen Mine fault, 54, 57, 59, Waterman Hills detachment fault, 31 Wingate Wash fault, 340, 341 71 Weepah detachment fault, 457, 468, Winsor Member, 485 Vancouver island, 5 473 Wood Canyon Formation, 238, 239, Vancouver plate, 3, 5, 6, 9 Weepah Hills, 471 314, 348, 418, 423, 434, 438 Vermilion Cliffs paleovalley, 494, Weepah region, 448 World Beater dome, 348, 354 495, 497 Weepah unit, 448, 453 worm burrows, 424 Virgin Limestone Member, 487, 488, Weiser syncline, 124, 125, 127, 144, Worthington Mountains, 208, 209 494 146, 147 Wyman Formation, 457, 458, 459, Virgin Mountains, 111, 115, 490 West Range Limestone, 181, 182 462, 468 Virgin River Gorge, 115, 116, 117 Wheatgrass fault, 187, 190 Virgin River Valley, 123, 146 Wheatgrass fold, 187, 190 xenocrysts, 395 viscosity, 8 Wheeler Pass system, 233 xenoliths, 395 vitrophyre, 265 Wheeler Ridge block, 111, 118 basal, 185 Wheeler Syncline, 244 Yerington area, 473 Volcanic Hills, 465, 467, 468 Whipple Mountains, 69 Yucca Flat, 245, 247, 248, 289, 297 volcanic arc, 478, 495 White Mountains, 349, 471, 472 Yucca Flat basin, 297, 299 volcanic breccia, 52 White River fault, 186, 189 Yucca Flat tuff, 287 volcanic centers, 284, 408 White River Narrow, s 185 Yucca-Frenchman shear zone, 284 volcanic deposits, 468 White River Valley, 190 Yucca Mountain, 251,269, 284, 287, volcanics, 419, 422, 431, 434, 468, White Stage wash, 353 289, 290, 300 480, 487, 489 White Throne Member, 485 northern, 254, 261 older, 288 White Top Mountain backfold, 423 southern, 254 volcanism, 23, 30, 32, 52, 156, 181, White Top Mountain thrust system, tectonic setting, 251,275 192, 284, 286, 336, 391, 495 233 western, 254 arc, 8 Whitmore Point Member, 482 Yucca Mountain fault, 300 bimodal, 30 age, 486 Yucca Wash, 261, 268 intermediate, 30 Whitmore Wash Member, 117 Yucca Wash fault, 270 off-axis, 409 Whitney Pass, 115 silicic, 288 Wild Horse Pass fault, 234, 243 Zabriskie Quartzite, 278, 314, 418, Wildrose Canyon, 346, 349, 350, 353, 423 wacke, lithic, 417, 418, 434 356, 380, 383, 385 Zabriskie Quartzite klippe, 424 Wadsworth Ranch, 206 Wildrose graben, 356 Zion Canyon, 484
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Downloaded from http://pubs.geoscienceworld.org/books/book/chapter-pdf/955040/mem176-bm.pdf by guest on 01 October 2021 Basin and Range Extensional Tectonics near the latitude of Las Vegas, Nevada Edited by Brian P. Wernicke •Si
Contributors 111
Jeff Severirighaus Tanya Atwater Ryan D. Turner Allen F. Giazner James E. Faulds John W. Geissman
Chris K. Mawer Ernest M. Duebendorfer Angela J. Sewall 1 Eugene I. Smith Stephen M. Rowland Joseph R. Parolini Edward Eschner Alonzo J. McAllister Jonathan A. Rice Gary J. Axen Brian P. Wernicke Michael F. Skelly Wanda J. Taylor G. Michel-Noel R. Ernest Anderson Jacques Angelier John M. Bartley Gayle Gleason A. S. Jayko Peter L. Guth Robert B. Scott W. J. Carr Ibrahim Cemen Lauren A. Wright Jon E. Spencer Laura Serpa Theodore C. Labotka Arden L. Albee L. W. McKenna K. V. Hodges M. B. Harding Drew S. Coleman J. Douglas Walker J. Kent Snow Carolyn White John H. Stewart David S. Diamond John E. Marzolf
ISBN 0-8137-1176-2 Downloaded from http://pubs.geoscienceworld.org/books/book/chapter-pdf/955040/mem176-bm.pdf by guest on 01 October 2021 0 ALLUVIUM-- Locally derived gravels. Qa QUATERNARY UPPER PLATE COLORADO RIVER GRAVELS- Consist of well-rounded boulder- Goa size clasts of Paleozoic quartzite, chert, and carbonate. DACITE- Gray or white, porphyritic with phenocrysts of zoned Tv plagioclase and biotite or hornblende. HORSE SPRING FORMATION- Consists of five fades from base to Ths top: 1) basal carbonate-bearing conglomerate; 2) porphyritic TERTIARY dacite flows: 3) yellow-brown subarkosic siltstone; 4) matrix- supported pebble conglomerate; 5) porphyritic granitic megabreccia. DIORITE- Consists of zoned plagioclase, hornblende, subordinate Tdi quartz and biotite. Includes two fault-bounded exposures of very fine-grained, gray, equigranular diorite on the southern end of the island which may represent down-faulted blocks of upper plate. Age is unknown. PIOCHE SHALE -- Thinly bedded, micaceous, silty shale and mudstone. -SP Discontinuous 30- to 62- centimeter thick lenses of quartz CAMBRIAN sandstone occur near basal contact. TAPEATS SANDSTONE- Cross-stratified, fine- to coarse-grained •et quartz sandstone with minor feldspar. Contains trace fossil Skolithis. Gradationai contact with overlying Pioche Shale. PEGMATITE- Contains plagioclase, quartz, and trace amounts of iron peg oxides, muscovite, and zircon. PRECAMBRIAN BASEMENT- Amphibolite, garnet-bearing biotite- p£ quartzofeldspathic gneiss, quartz monzonite and blotite-muscovite schist. LOWER PLATE m QUARTZOFELDSPATHIC GNEISS- Fine- to coarse-grained, biotite- qfgn bearing. Typically mylonitic to ultramylonltlc; locally exhibits strong cataclastic overprint. PREGAMBR1AN ULTRAMYLONITIC AMPHIBOLITE- Very fine-grained, dark bands of •im actinolite, biotite, and epidote alternate with light bands of quartz and plagioclase. v„ MYLONITIC AMPHIBOLITE- Fine- to medium-grained, foliated my with well-developed S-C fabric and prominent stretching linsation. Contains plagioclase, hornblende, actinolite, and biotita. WON MYLONITIC AMPHIBOLITE- Msdium- to coarse-grainsd, cm equigranular, hornbtenda-plagloclase metagabbro. Locally incipiently mylonitized, grades into mylonitic amphibolite witn increasing strain. GARNET-BEARING GNEISS- Medium- to coarse-grained. Contains up to ggn 50% garnet (1-?0 mm), quartz, microcline, muscovite, plagioclase, and minor biotite. Contact relations suggest an intrusive protolith. DIKES: Tertiary basalt Mid-Miocene dacite Contact, dashed where inferred. Moderate- to high-angle fault, dashed where inferred. Bar with ball on down-thrown block. Arrow indicates dip direction. Low-angle fault showing dip of 30° or less, dashed where inferred. Hatch marks on upper plate. \ Detachment fault showing dip of 30° or less, dashed where inferred. Hatch marks on upper plate. Strike and dip of sedimentary beds, inclined. Strike and dip of foliation: \ Vertical. Inclined. 34 ^42 Foliation, showing trend and plunge of lineatlon. Shoreline. Domain boundary ï am •vT^ggn :VÂD Geological Society of America Memoir 176 Basin and Range Extensional Tectonics Near the Latitude of Las Vegas, Nevada Edited by Brian P. Wernicke Chapter 4. The Saddle Mountain Detachment; An evolving shear zone in the Lake Meade area, Nevada a> by Ernest M. Duebendorfer, Angela J. Sewall, and Eugene I. Smith p. 77-98 O ARCHIV Downloaded from http://pubs.geoscienceworld.org/books/book/chapter-pdf/955040/mem176-bm.pdf by guest on 01 October 2021 FRENCHMAN MOUNTAIN Anchor fl/ji/^ tfjlffl Dolomite with abundant conspicuous chert TRAMP RIDGE T" J ¡it. i t-fi f- Dolomiie with abundant conspicuous chert ANCHOR DAWN MEMBER '!''>l>\) DAWN MEMBER Very pitted dolomite; minor limestone (no fossils) (50 m) Unit 27 (45 m) T~7 thin breccia D / ' i ' CRYSTAL PASS S S: Unit 26 (16.5nni) frfrfg Bench forming limestone and overlying dolomite 7 / ' t / Ì / / / Ì / / 1 Ì / / / / CRYSTAL PASS 7 / / / Meters Finely laminated limestone (60 m) Unit 25 (34 m) rO Meters Chert cap Light gray, finely laminated dolomite Unit 24 (16.5m) •0 cherty ! / / ! / / / / / Unit 23 (21 m) / / > J / / / /r -50 SULTAN SULTAN / / / / . / ! / / / / / (134 m) i / / / Mid-Sultan slope •50 / t / i .... Unit 22 (7!m) •100 •100 Unit 21 (I3.5m) Dark Unit 20 (18 rn) ^ gray, pitted dolomite;stromaloporoids D MTN. SPR."CMbr"(9m) MTN. SPR. unit 19 (11.5 m) Fine, light gray dolomite with green (glauconite ?) patches "UPPER NOPAH (16 m) MUAV 6 Unit 18 (15m) Medium gray,bedded, dolomite grainstone with abundant glauconite pellets DUNDERBERG SHALE Unit 17 (10 m) Light gray, pitted, sucrosic dolomite —^ ^fSXi Orange buff unit, eocrinoid grainstone locally; abundant glauconite at base, Alternating bands of light and dark gray burrowed dolomite Unit 16 (27m) Unit 24 sporadic in middle, absent at top MUAV 6 (52 m) Unit 15(12 m) Ridge forming, bedded,burrow-mottled medium gray dolomite abundant glauconite pellets Unit 14 (12 m) Medium gray, bench-forming,ledgy, burrow-mottled, thin-bedded dolomite MUAV 5 7 / / ' ~7 Medium gray, highly burrowed dolomite Medium gray dolomite, burrow-mottled sucrosic dolomite, difficult to ( IÎ9 m ) see 1° texture; prominent cliff former Unit 13 (37m) Abundant flat pebble breccia 1111 Chalky dolomite underlain by flat pebble breccia Very light gray,fine grained,nonresistant dolomite Unit 12 (21m) Poorly preserved thrombolites — Unit 23 " Unit 11 (6 m) T'/ '/'/ Dark gravj ridae-formina. burrow mottled-dolomite MUAV 5 (96 m) Cryptalgal dolomite ( 126 m ) Unit IO (36m) Flat pebble breccia Unit 22 Prominent bench of light gray, burrow-mottled dolomite (not Light gray cryptalgal dolomite with conspicuous orange chert nodules (30 m) obvious why this interval is non-resistant) Unit 9 (32m) following algal framework Unit 21 (4.5 m) Dark gray, cliff-forming dolomite Unit 20 (IO.5m) Light to medium gray,finely laminated (cryptalgal) dolomite Unit 8 (20m) Very light gray, highly burrowed dolomite MUAV 4 nodular horizon Dark gray, bur row-mottled dolomite; becomes lighter and less Unit I9 (45 m) (212m) resistant toward top Unit 7c (43 m) Prominent bench-forming, nonresistant, medium gray, burrow-mottled Unit 7b (7m) Light gray cryptalgal dolomite Unit I8 (33 m) dolomite (3-5) and nodular,lumpy, bedded dolomite; becomes finely laminated (cryptalgal?) toward top Dark gray, cliff-forming dolomite MUAV 4 Jjky Knobby, bench forming, dark gray dolomite Unit 7a (33m) Unit i7 (4 m) (2l4m) Thin chert ribbons overlying prominent 4m white band ;Medium gray dolomite, mostly in cryptalgal bands of varying cryptalgal fabric with thin chert lenses thickness (0.5m to a few meters) Unit I6 (73m) Light gray, burrow-mottled dolomite Medium gray dolomite; cliff/slope with occasional ledges Unit 6 (59m) Banded white (cryptalgal) and dark (burrow-mottled) dolomite; bands are a few meters thick Cryptalgal (?) 1 /• Dark to medium gray cliff-forming dolomite Unit I5 02 m) Buff colored, lumpy-bedded, burrow-mottled dolomite Light gray, stromatolitic, with conspicuous brown chert lenses MUAV 3 (88m) Unit 5c (39m) V White chert/stromatolitic unit ',',[> Unit I4 (32 m) Light gray,finely laminated, burrow-mottled, nonresistant Dark gray, cliff-forming, burrow-mottled dolomite Unit 5b (24m ) dolomite; somewhat nodular and lumpy Unit 13 (32 m) Bentonite ? Light gray dolomite; patches of limestone Siltstone, strombolites/thrombolites, lumpy-bedded Unit 5a (32 m) Unit 12 (10m) "mestone and dolomite Medium gray, burrow-mottled limestone MUAV 3 Unit 4 (Ilm) Poorly exposed limestone with light green shale (92m) Orange-buff, burrow-mottled dolomite MUAV 2 (88m) Unit II (50 m) Medium gray, burrow-mottled limestone ^Bentonite ? Unit 3 (45m) Unit 10 (12 m) Conspicuous dark gray, burrow-mottled, cliff-forming, dolomite Unit 9 (9 m) Orange buff, cross-bedded carbonate grainstone Light gray, burrow-mottled,sucrosic Unit 2 .(18m) i\ dolomite Medium gray, burrow-mottled dolomite—. Finely laminated limestone with light Unit 8 (25 m) MUAV I (49m) gray dolomite MUAV 2 Medium gray, burrow-mottled dolomite with orange UniM (31.2m) overprint; overprint fades towards top Oncolitic limestone (96m) Unit 7 (23 m) Unit 6 (21 m) Medium gray,burrow-mottled dolomite Chisholm Shale ( 28 m) '•' •' •' • Burrow-mottled limestone oolite cap ' Unit 5 (6m) -ft Reddish dolomite '. i . i , i 1 i , ij Bedded,burrow-mottled limestone with patchy LYNDON LIMESTONE (26 m) Dark gray, burrow-mottled thrombolitic limestone Unit 4 (18 m) :i I I I Wdolomitization along bedding planes BRIGHT ANGEL Orange dolomite Unit 3 (15.5 m) MUAV I (50m) SHALE Unit 2 (8 m) Light gray limestone Light gray, very pitted,sucrosic dolomite Unit I (8 m) 'Oncolitic limestone PIOCHE SHALE (lOOm) CHISHOLM SHALE (25 m)^^!^ LYNDON LIMESTONE (30 m) Thrombolitic BRIGHT ANGEL SHALE ^ T«nr *-rn _ ... -_i Interbedded shale TAPEATS SANDSTONE (29 m) Cross bedded quartz sandstone CRYSTALLINE BASEMENT PIOCHE SHALE (128 m) \ I ^ ' Geological Society of America Memoir 176 Basin and Range Extensional Tectonics Near the Latitude of Las Vegas, Nevada Edited by Brian P. Wernicke Chapter 5. Sedimentologic and stratigraphie constraints on the Neogene translation and rotation of the Frenchman Mountain structural block, Clark County, Nevada by Stephen M. Rowland, Joseph R. Parolini, Edward Eschner, Alonzo J. McAllister, and Cross-bedded,quartz Jonathan A. Rice TAPEATS SANDSTONE (48m) sandstone; shale PLATE 1. interbeds near top G.S.A. ARCHIVES CRYSTALLINE BASEMENT - V\\ / if1 Downloaded from http://pubs.geoscienceworld.org/books/book/chapter-pdf/955040/mem176-bm.pdf by guest on 01 October 2021 114° 15' GEOLOGIC MAP OF THE SOUTHERN J-MD _ Jmbled 0Mohntain line of section CC, Fig. 17 h" 36° 52*30" ? — •?••• contact Mormon Peak Detachment ..A... Major thrusts ^.^...J^.. Floor/roof thrusts • -a- • • Minor imbricate thrusts ALM. m. — Reactivated thrusts (closed/open tooth as above) — low-angle or bedding-subparallel normal fault _±. _i high-or moderate-angle normal fault 36° 45' — Folds (trace of axial surfaces) ^— syncline Q— overturned syncline ^— asymmetric syncline-double arrow steep limb "anticline ^ — overturned anticline ^— asymmetric anticline — double arrow on steep limb Bedding attitudes inclined vertical © horizontal ^ double-headed tie bar connects fields underlain by same map units Papoose Lake Member Bright Angel Shale Tapeats Sandstone Geological Society of America Memoir 176 crystalline basement Basin and Range Extensional Tectonics Near the Latitude of Las Vegas, Nevada Edited by Brian P. Wernicke Chapter 6. Mesozoic and Cenozoic tectonics of the Sevier thrust belt in the Virgin River Valley area, southern Nevada by Gary J. Axen, Brian P. Wernicke, Michael F. Skelly, and Wanda J. Taylor p. 123-154 G.S.A, ARCHIVES Downloaded from http://pubs.geoscienceworld.org/books/book/chapter-pdf/955040/mem176-bm.pdf by guest on 01 October 2021 the Central North Seaman Range Hiko Tuff, Harmony Hills Tuff, lava flows, Pahranagat Lakes tuff, Condor Canyon Fm., and Leach Canyon Tuff Pahroc sequence, lava flows, tuff of Hamilton Spring, and Monotony Tuff Timber flow Petroglyph Cliff tuff, conglomerate of Black Rock Spring, Lund Fm., and lava flows tuff of Deadman Spring, Wah Wah Springs Fm., Cottonwood Wash tuff, and fm. of Rattlesnake Spring Permian Arcturus Formation Pennsylvanian Ely Limestone Mississippian Joana Limestone and Scötty Wash Quartzite Devonian West Range Limestone and Guilmette Formation faults showing dip, dashed where approximately located, ball and bar on downthrown side low-angle normal fault discussed in text anticline stratigraphie contact strike and dip of bedding Geological Society of America Memoir 176 strike and dip of compaction foliation zone of closely spaced faults by Wanda J. Taylor jjf^ffjf. stratigraphie pinch-out of Pahranagat Lakes tuff and contact along which pinch-out occurs PLATE 1 ; tie between fields of same units G.s. A. ARCHIVES Downloaded from http://pubs.geoscienceworld.org/books/book/chapter-pdf/955040/mem176-bm.pdf by guest on 01 October 2021 EXPLANATION Oal Quaternary PLATE 2. CROSS-SECTION B-B' AND RESTORATIONS 24 -18 Ma Td units 27 - 24 Ma Tc 30 Ma 30-27 Ma between I8.8 Ma and Pliocene units early stage 30 - 27 Ma Tb —j ^ future low angle units Id I /-"Td /normal fault >30 Ma Ta Tertiary TcV^ units. Tas is basal sediments -^Ta^kWr Tb Present IPe 'DWpg Topography Permian Ms 'MJ Pa Arcturus Fm. / HC / Mc/n)w between l8.8Ma and Pliocene faults correlated low angle //, 09 H with ¡¡strìe faults normal fault J Mj Pennsylvanian late stage Present Topography IPe V... Ely Limestone -- -'"'Td Mississippian Scotty Wash Quartzite Mc / Mississippian Dg Mc Chainman Present Shale NORTH PAHROC RANGE B Mississippian W Mj low angle Joana Limestone 7000 Strike-slip fault normal fault Devonian \ White Dw West Range River 5000- Limestone Devonian Dg Guilmette 3000-| Limestone feet Dst T Devonian Pahroc fault ^ n Dsi Simonson 2000feet Dolomite EE23 Seaman breakaway No vertical exaggeration Devonian Plate 2. Cross section location shown on Plate 1. Each part represents the cross section restored to a different time. Sevy The oldest section is the eastern part of the present section. The cross section expands vertically and to the west as the Tertiary volcanic units are deposited. The Seaman breakaway is not shown in the oldest Dolomite section because of its interpretive nature. by Wanda J. Taylor Geological Society of America Memoir 176 Basin and Range Extensional Tectonics Near the Latitude of Las Vegas, Nevada Edited by Brian P. Wernicke - Chapter 8. Spatial and temporal relations of Cenozoic volcanism and extension in the North Pahroc and Seaman Ranges, eastern Nevada by Wanda J. Taylor PLATE 2 PLATE 3i Geologic Cross-Section A-A' and restoration No vertical exaggeration EXPLANATION Mississippian Qal Quaternary Ms Scotty Wash Quartzite PREVOLCANISM Mississippian Present Topography. 24 -18 Ma Present Eastern limit of exposed Td units Mc Chainman Topography Paleozoic rock in Seaman Range Shale / 27 - 24 Ma Mississippian J Dw / Tc Mj lllliiliuiu units Joana Limestone Western limit of exposed Tu < Devonian Paleozoic rock In North Pahroc Range / 30 - 27 Ma MC/HJ • / Tb Dw Dg . units West Range /Me/ /V / / Limestone "J/ / Devonian Dsi I - X /Dw/ >30 Ma Ta Tertiary Dg Guilmette units Limestone Dse Permian Devonian Pa Arcturus Fm. Dsi Simonson Present Western exposure Dolomite of basal Tertiary sediments Pennsylvanian Devonian IPe Ely Limestone Sevy Dolomite by Wanda J. Taylor Seaman Lower section is restored to a time that was prevolcanic (pre-31 Ma), but after the first period of faulting. The top of the 29.5 Ma Wah Wah Springs Formation is shown on the restored section for reference, but breakaway it was not present at the time represented by the cross section. The Wah Wah Springs is the oldest Tertiary unit that is present across the entire study area. Geological Society of America Memoir 176 Basin and Range Extensional Tectonics Near the Latitude of Las Vegas, Nevada Edited by Brian P. Wernicke Chapter 8. Spatial and temporal relations of Cenozoic volcanism and extension in the North Pahroc and Seaman Ranges, eastern Nevada by Wanda J. Taylor PLATE 3 1 » Downloaded from http://pubs.geoscienceworld.org/books/book/chapter-pdf/955040/mem176-bm.pdf by guest on 01 October 2021 LEGEND: CONTACTS: Exposed Approximately located Covered —... Fault with dip & dip direction 54 —e""" Fault with stria trend & plunge 62 Thrust fault o Slide block STRIKE & DIP OF: 20 Bedding Vertical bedding 17 Compaction foliation in volcanic rocks 75 Flow banding In volcanic rocks 68 A Solution cleavage in carbonate rocks 53 Calcite filled veins MINOR FOLD AXES ORIENTATION: 10 C Antiform with plunge 12 «>-3- Synform MISCELLANEOUS: ,fd r Felsic dike Mafic dike Tie bar: indicates unlabeled unit is same as labeled unit. UNITS: >- Ti Felsic intrusion fd Felsic dikes Jasperoid >- Tsp o vitrophyre assoc. with rhyolitic flows Tcc tuff of Cherry Creek < a. a. Twb Windous Butte Formation CO œ CO co { MDs Devonian/Mississippian (?) shale Dg Guilmette Formation < z o Dsi > Simonson Dolomite aUi Dse Sevy Dolomite - i SD Laketown/Sevy undifferentiated < Œ SI _J Laketown Dolomite CO OS Fish Haven/Laketown undifferentiated J 30" Ofh Fish Haven Dolomite Oe z< Eureka Quartzite <3 Opa > J o ^ Antelope Valley Limestone o cc o Opk Kanosh Shale Ops Shingle Limestone Opg Goodwin Limestone Geological Society of America Memoir 176 Figure 8. Geologic map of southern Grant Range (see Fig. 3 for location), Basin and Range Extensional Tectonics Near the Latitude of Las Vegas, Nevada from Gleason (1988), with some additional mapping by Bartley near Op Edited by Brian P. Wernicke Cherry Creek Summit. Topographic base from U.S.G.S. 7.5-minute Pogonip Group undifferentiated Chapter 9. Tertiaiy normal faults superimposed on Mesozoic thrusts, quadrangles Adaven and Wadsworth Ranch. Quinn Canyon and Grant Ranges, Nye County, Nevada by John M. Bartley and Gayle Gleason p. 195-212 G.S.A. ARCHIVES Downloaded from http://pubs.geoscienceworld.org/books/book/chapter-pdf/955040/mem176-bm.pdf by guest on 01 October 2021 620 U5°3!7'!30" i 621C«»£ *¡t——— / iTv/W .. / v A / M^f^ ríJXí' i- Qa Alluvium Qt Talus Conglomerate V f r a JjL Granite / Tw Windous Butte Formation Da. Guilmette Formation Dsi Simonson Dolomite / Dse Sevy Dolomite Qa "•x , YYJ SI Laketown Dolomite ! V : Of h Fish Haven Dolomite / />)kj\ Oe Eureka Quartzite / Oa Antelope Valley Limestone Opm Middle Pogonip Group, undivided MM Og Goodwin Limestone •Cwu Upper Windfall Formation €w •Cwl Lower Windfall Formation €s Sidehill Spring Formation •epe Pole Canyon Limestone SCALE 1:24,000 ^AT^: T mile <<4 r>*M\ v.r /r kilometer \ Figure 5. Geologic map of the Hooper Canyon area. Topographic base pm¥f t / from U.S.G.S. 7.5-minute quadrangles Nyala and Adaven. Map symbols 4Ä1 a,/ are explained in Figure 8. |— 3000 meters above sea level h 2000 h 1000 I T I Tertiary, undivided ~D Devonian, undivided S Silurian Laketown Dolomite | Ofh | Ordovician Fish Haven Dolomite | Oe | Ordovician Eureka Quartzite | Op | Ordovician Pogonip Group Misfit reflects | uC | Cambrian Sidehill Spring and Windfall Formations out-of-pla ne displacement on |-Cpc | Cambrian Pole Canyon Limestone Wadsworth Ranch fault Cambrian Pioche Shale Cambrian Prospect Mountain Quartzite Figure 6. Present and restored cross sections along A-A' (see Fig. 3 for location), at same scale as detailed maps in Figures 5 and 8. ® indicates movement toward, and (g> movement away from, the viewer. FIGURE 10 GEOLOGIC CROSS-SECTIONS SCALE: i: 24,000 No vertical exaggeration. B B' -10,000 ft 3000 m -I 3000 m - 9000 2500 -I WRfs^ - 8000 2500 - 7000 2000 -J Twb^TrVTÍBTy 2000 - 6000 S sé 1500 - 5000 WEST EAST EAST 3000 m 2500 - 2000 1500 - sw WRfs. E' SOOOm -J - 10,000 ft PRE-CHERRY CREEK FAULT PRE-TERTIARY FELSIC DIKE - 9000 250 0 H - 8000 . 7000 2000 H - 6000 1500 H • 5000 NE Figure 10. Cross sections of southern Grant Range. Symbols are same as in Figure 8, on which locations of sections are shown. B-B' shows box- shaped anticline in footwall of Rimrock thrust. C-C' shows folded hanging wall of Rimrock thrust. D-D' is drawn parallel to the intersection of segments E and F of the Wadsworth Ranch fault system (see Fig. 12 for locations of fault segments). Note ramp-flat geometry of segment F above the Rimrock thrust. E-E' is drawn parallel to the intersection line of segments B and C of the Wadsworth Ranch fault system (see Fig. 12a for Geological Society of America Memoir 176 segment locations). Basin and Range Extensional Tectonics Near the Latitude of Las Vegas, Nevada Edited by Brian P. Wernicke Chapter 9. Tertiary normal faults superimposed on Mesozoic thrusts, Quinn Canyon and Grant Ranges, Nye County, Nevada by John M. Bartley and Gayle Gleason p. 195-212 Downloaded from http://pubs.geoscienceworld.org/books/book/chapter-pdf/955040/mem176-bm.pdf by guest on 01 October 2021 00 "Tir—![!;|''i! 0.0 ili!'Ifij'! il • ; I irHli Ili 16.0 16.0 20km 800 VP NO RAND THRUST GARLOCK 0.0 — A 0JON E m n oz o 0/5 16 0 160 Geological Society of America Memoir 176 Figure 4. Seismic data along Mojave line 3: uninterpreted (top) and showing the interpretations (bottom) discussed in Basin and Range Extensional Tectonics Near the Latitude of Las Vegas, Nevada text. Scale bar at the top indicates 20-km horizontal distance. Edited by Brian P. Wernicke Chapter 16. Structural styles across an extensional ongen; Results from the COCORP Mojave and Death Valley seismic transects by Laura Serpa p. 335-344 G.S.A. ARCHIVES Downloaded from http://pubs.geoscienceworld.org/books/book/chapter-pdf/955040/mem176-bm.pdf by guest on 01 October 2021 700 9.0 00 I ¡11 , ¡1 jf p 0.5 I,I• • • .i.:.i.i.:i |ijh|ill i| i j! i h - 0.5 1.0 11 i 111111 j i j ll 11 i 11 I |ti' i'— 1.0 1111 • i TTTl^ * 1 i J • 1411 i 11T11' 11 ii Mltjf^'H't-^ f4 W'i-M'+T-T-T^ fiffiHHKh! i! I >i i i I !< 1 • h" II; 1 i lN . i wv j || ||||i|||| ^ , ^ •| ^ ^ 1.5 ¡¡mm 11 i jiti'ij Ujji (tij ijit'i iiiiiiiiiiiiii jijtji i'I | illll ¡|| 11 H j) | M' ^ H11' | j 1111| 11H111 ^ ••||*j}}|}{{l|||jT Mlfijli^i'Mf1 t^tiillMiiiii^M itt^tMtf ilWi il i l l 2.0 yy in i iiJ ;|Mill | I i hi' i, IS •|||;i| I I li||| Ijlli - 2.5 JO 3.0 3.5 3.5 4-0 4.5 5.0 5.0 5.5 6.0 6.0 6 5 6.5 y.o 7.0 7.5 7.5 1.0 8.0 10 km 0.0 0.5 Geological Society of America Memoir 176 Figure 6. Seismic data along Death Valley line 9: (top) uninterpreted and (bottom) showing the interpretations Basin and Range Extensional Tectonics Near the Latitude of Las Vegas, Nevada discussed in the text. Scale bar at the top indicates 10-km horizontal distance and the area of overlap between lines 9 Edited by Brian P. Wernicke and 11. Chapter 16. Structural styles across an extensional orogen; Results from the COCORP Mojave and Death Valley seismic transects by Laura Serpa p. 335-344 Downloaded from http://pubs.geoscienceworld.org/books/book/chapter-pdf/955040/mem176-bm.pdf by guest on 01 October 2021 150 650 550 500 4 50 400 350 300 250 200 0.0 a T.,•..,.. .1, • yl "j T 00 1 1 1 1 |j j II';; 'iji I h| |» », • .! • j | • t || • | ^ ' f j I | ' | , | I , • I j 'I l I ' ' | j j | | i Ml, 1 H' J il. 1 '; MI « I I I III ' ' . i| ''' 1' • ' II I'll ' r 1 »•. —U...,4f V 1 l i »< • • \ "ii : I . i- It-**» i • t-f4 « • »•^•.•.••••M M4M4»«I . 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I! ! 1 — ' 1,; 1 ' T,.|.MT.T)I T!LIR ' 0.5 0.5 HMritf^i :; , , I 11 •f ii'.li !!.{ M i! . !l :: i ': * * 11.1. ••! • :!l ! ;,l I'llll lllhll ill! >! 1 ii!11111»• . .i jfcitjaiiiii;; J.|tj tj 1.0 1.0 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.0 3.5 3.5 4.0 4.0 4.5 5.0 5.0 5.5 6.0 6.0 6.5 6.5 7.0 7.0 7 5 7.5 8.0 8.0 10 km 0.0 o.o 4^4 ^ 4U4-tt»4Ut4 - « f • 4 • Ml |*M4Ui.M»l44tt4.fUUfj44f , J 4« 4 . • M • 4 4 4 1 * i j 4 . • • 4 f • 44 • • 4 ^ | . ill ' .|,:|i»!' I : •'!1 • li»l! 1,1 v; '•• i ' .i1' !':' ' ':t!!' ' ' 'I lt«M 4 | •4tt«4if4*4U*4«i4l • f I • 4*444 14 -4 • - — • • ••• • 4 • 4 • i* 4. * 4« t4 4 »4 • | 4 . i • • »« »4 M . 1 • •• ... 1 I ,i _|4 ,1. j, | | ^Ijjl j.j J- j!| • h t».«-n* i (}i«tpf»4 th^^t fut f ¡!|i li|. I,.' '•! ' '¡I'.i, 0.5 0.5 1.0 — 1.0 1.5 1.5 2.0 2.0 2.5 2.5 3.0 30 3.5 3 5 4.0 4.0 4.5 4.5 5.0 5.0 5.5 5.5 6.0 6.0 6.5 6 5 7.0 7.0 7.5 7.5 8.0 8.0 Geological Society of America Memoir 176 Figure 7. Seismic data along Death Valley line 11. (top) uninterpreted and (bottom) showing the interpretations Basin and Range Extensional Tectonics Near the Latitude of Las Vegas, Nevada discussed in the text. Scale bar at the top indicates 10-km horizontal distance and the area of overlap between lines 9 Edited by Brian P. Wernicke and 11. CC refers to the position of a 690-000-year-old Cinder Cone. Chapter 16. Structural styles across an extensional orogen; Results from the COCORP Mojave and Death Valley seismic transects by Laura Serpa p. 335-344 G.S.A. ARCHIVES Downloaded from http://pubs.geoscienceworld.org/books/book/chapter-pdf/955040/mem176-bm.pdf by guest on 01 October 2021 0.0 0.0 1.0 1.0 2.0 mmm 2.0 3.0 3.0 4.0 4.0 5.0 5.0 6.0 6.0 7.0 7.0 8.0 8.0 9.0 IS*» 9.0 10.0 10.0 1 1.0 11.0 12.0 12.0 13.0 13.0 14.0 14.0 15.0 15.0 16.0 16.0 o O o o 3 O LO o ID CL. o o O o O a a. Geological Society of America Memoir 176 Figure 9. Seismic data along Death Valley line 12: uninterpreted (left) and showing the interpretations (right) discussed Basin and Range Extensional Tectonics Near the Latitude of Las Vegas, Nevada in the text. Edited by Brian P. Wernicke Chapter 16. Structural styles across an extensional orogen; Results from the COCORP Mojave and Death Valley seismic transects by Laura Serpa p. 335-344 Downloaded from http://pubs.geoscienceworld.org/books/book/chapter-pdf/955040/mem176-bm.pdf by guest on 01 October 2021 10 km 190 390 VP NO 0.0 9.0 10.0 10.0 19.0 19.0 Geological Society of America Memoir 176 Figure 10. Seismic data along Death Valley line 10: uninterpreted (left) and showing the interpretations (right) Basin and Range Extensional Tectonics Near the Latitude of Las Vegas, Nevada discussed in the text. Edited by Brian P. Wernicke Chapter 16. Structural styles across an extensional orogen; Results from the COCORP Mojave and Death Valley seismic transects by Laura Serpa p.335-344 G.S.A. ARCHIVES Downloaded from http://pubs.geoscienceworld.org/books/book/chapter-pdf/955040/mem176-bm.pdf by guest on 01 October 2021 10 km 100 200 300 VP NO oa ao 5.0 s.o m n O z o 10.0 10.0 15.0 1 J-0 Geological Society of America Memoir 176 Figure 11. Seismic data along Death Valley line 8: uninterpreted (left) and showing the interpretations (right) discussed Basin and Range Extensional Tectonics Near the Latitude of Las Vegas, Nevada in the text. Edited by Brian P. Wernicke Chapter 16. Structural styles across an extensional orogen; Results from the COCORP Mojave and Death Valley seismic transects by Laura Serpa p. 335-344 Downloaded from http://pubs.geoscienceworld.org/books/book/chapter-pdf/955040/mem176-bm.pdf by guest on 01 October 2021 TRAIL CANYON Qal Alluvium, including fan deposits cd Dq Qoa E Devonltn Quarfzife. Thickbedded, dark JL CC Older alluvium brown veatering quartzite Deposltional contact: accurately, approximately Unconformity located, hidden CO 0) SDhv ! D .l a a P « « « ° » U Taf Tbf Hidden Valley Dolomite. Gray to light gray Normal fault, accurately, approximately located, Tag ^ Oes Tdf —i— -T-^. ^ . Ely Spring Dolomite. Thickly-bedded dolomite. Strike and dip of bedding: upright, vertical, 0) Unconformity Nopah Formation. Mostly brown sandy 'dolomite alternating with black and cream colored limestone. To1 u m c Gbk Obsidian I -Tt Bonanza King Formation. Upper part is Tbf b thick-bedded dolomite, middle part consists of Tfi 0 light-tan shale interbedded with platy limestone dikes: Td, basaltic; fd, felsic, of Tertiary Age a and sandstone, while lower part consists of interbedded dark limestone and light-colored Aphyric basalt flows 1 dolomite. with interbedded lapilli-fall tuff Tfi, Ground breccia. Clasts of porphyritic Geological Society of America Memoir 176 rhyolite in a matrix of fine grained to porphyritic rhyolite; Tgp, granophyric intrusive. Location marker Basin and Range Extensional Tectonics Near the Latitude of Las Vegas, Nevada Edited by Brian P. Wernicke Tvcgl Chapter 18. Constraints on the kinematics and timing of the late Miocene-Recent extension between the Panamint and Black Mountains, southeastern California Volcaniclasfic conglomerate. Rounded,;- . ' by L. W. McKenna and K. V. Hodges ellipsoidal clasts of porhyritic rhyolite cemented 2 km by detrital material. p. 363-376 PLATE 1. Unconformity ; : -}/k Scale: 1:15840 Downloaded from http://pubs.geoscienceworld.org/books/book/chapter-pdf/955040/mem176-bm.pdf by guest on 01 October 2021 composite section 700 upper conglomerate QTc 700 6 volcanic / marl Tvm middle conglomerate TC21 Ubehebe sandstone Tua upper conglomerate 600 -- — 600 Ubehebe sandstone Ubehebe sandstone Tü« Ubehebe sandstone 500 -- — 500 Ubehebe sandstone 400 -- — 400 Ubehebe sandstone Tu lower conglomerate . - A > ^ « »• A A volcanics VVVVVVVVVVVVVVVVVV 300 — silty mudstone Tin Mountain structural block — 300 sandstone CORRELATION CHART OF , * • pebbly sandstone • _ • Ubehebe sandstone Tu TERTIARY STRATIGRAPHY Ubehebe Basin, northern conglomerate •^o-^.U.-.o^c?:.; Cottonwood Mountains, CA ^.••••-•wn.-'q 200 — The composite stratigraphie section on the Ubehebe 200 \\\\\\\\N Crater block was constructed from sections 1-6. cross bedding Stratigraphie section 13 was measured on the Tin «M lower conglomerate Tc 1 tóQ^oo Mountain block. See Figures 4 and 6 for section P^.voQo'O'.n' locations, Appendix 1 for stratigraphie descriptions, sM(f?.o::a- plant fossils P and the text for a discussion of correlations. bc^o yQ-jo-'&l frn&m land surface map unit boundaries 100 -- unconformity RESISTANT 100 i fault o*Cl5 UBEHEBE CRATER FAULT ¿àp&rï color and/or lithological variations RECESSIVE 7 0 -L -L- 0 meters end of measurement subunit boundary \ Ubehebe Crater structural block meters Geological Society of America Memoir 176 Basin and Range Extensional Tectonics Near the Latitude of Las Vegas, Nevada Edited by Brian P. Wernicke Chapter 21. Listric normal faulting and synorogenic sedimentation, northern Cottonwood Mountains, Death Valley region, California by J. Kent Snow and Carolyn White p. 413-446;-'f; PLATE 1. ' Downloaded from http://pubs.geoscienceworld.org/books/book/chapter-pdf/955040/mem176-bm.pdf by guest on 01 October 2021