[Italic Page Numbers Indicate Major References] Abajo Mountains, 314
Index [Italic page numbers indicate major references] Abajo Mountains, 314 andesite, 70, 82, 86, 267, 295, 297, terranes, 36, 644 Abert Lake-Goose Lake area, 343 299, 303, 305, 308, 310, 343, volcanic. See volcanic arcs Abert Rim area, 303, 377 345, 350, 371, 375, 483, 527, volcanism, 74, 81, 89, 299, 300, Absaroka Range, 290, 354 543, 644, 654 320, 385, 482, 491, 642 Absaroka system, 592 Aneth Formation, 45 waning, 643 Absaroka thrust, 172, 219, 594, 599, Angora Peak member, 316 See also specific arcs 601 Angustidontus, 34 Archean, 629, 632, 651, 652 Absaroka volcanic field, 218, 297, Anita Formation, 275 arches, 15, 46 300, 486, 491 anorthosite, 412, 633 archipelago, volcanic, 453 accretion, 36, 111, 127, 128, 131, Antelope Mountain Quartzite, 38, 40, arenite, 142 141, 168, 242, 252, 254, 262, 420 argillite, 11, 16, 31, 34, 38, 41, 62, 265, 273, 450, 468, 534, 545, Antelope Range Formation, 28 70, 81, 85, 87, 89, 111, 128, 555, 636, 646, 664, 677, 693 Antelope Valley Limestone, 22, 23, 24 130, 133, 136, 138, 141, 160, accretionary prism, 37, 127, 141, 241, anticlines, 213, 319, 340 162, 164, 281, 434, 543, 547, 281, 422, 423, 432, 436, 468, antimony, 643, 644 635, 658, 663, 671, 676 471, 621, 654, 676 Antler allochthon, 422, 431 Argus Range, 365, 600 actinolite, 528, 637 Antler assemblage, 419, 422, 450 Arikaree Formation, 286 Adams Mine, 632 Antler foredeep basin, 35, 61, 62, 74, Arizona, 140, 597 Adaville Formation, 219 94, 96, 420, 425, 430, 471 south-central, 323 Adel Mountain volcanic field, 218, Antler foreland basin, 28, 42,
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