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[Italic Page Numbers Indicate Major References] Abra Pampa, 191 Index [Italic page numbers indicate major references] Abra Pampa, 191 amygdules, 84, 97 andesine, 160 Absaroka Range, 206 Anallajchi stratovolcano, 248 andesites, 14, 39, 47, 52, 54, 59, 64, absarokites, 202, 204, 206, 208, 213, Ananea basin, 270 70, 94, 116, 122, 125, 127, 133, 267, 269 Ancasti, 197 135, 182, 221, 223, 227, 248, accretionary prism, 271 Ancud-Rio Chubut lineament, 30 251, 254, 267 acites, 268 Andean arc, central, 237 basaltic, 59, 63, 94, 98, 122, 125, Aconcagua Andean Batholith, 39 134, 234, 248, 249, 251, 268 andesite, 124, 133 Andean belt, 33 flows, 247, 251 lavas, 133 western margin, 31 hornblende, 135, 142 rocks, 117, 125 Andean Central Volcanic Zone, 139 parent, 221 Aeolian Arc, 268 Andean chain, 292, 293, 294, 295 silicic, 126 African plate, 280 paleomagnetic data, 291 tholeiitic, 181 African poles, 294 Andean convergent zone, 260 anomalies aggregates, 203, 253 Andean Cordillera, 35, 38, 39, 40, 41, Bouguer, 281, 285, 288 agglomerates, 47 89, 202, 260, 271 Eu, 52, 104, 106, 126, 127, 134, Agua de la Zorra region, 83, 84 central region, 116, 125,132, 134, 171 Agua del Milagro, 248 135 free-air, 281 Aguada de la Perdiz Formation, 186 eastern, 249 gravity, 283 Airy-Heishanen model, 283 main, 30 isostatic, 282, 288 albite, 160 northern region, 116, 125,133, magnetic, 260 Alcohuas pluton, 102 135 thermal, 76 Aleutian plutonic rocks, 124 southern region, 116, 117, 122, Antarctic Plate, 2, 54 Algarrobal Formation, 100 133, 135 Antarctic-Nazca Plate, 2 alkaline suites, 251 western, 245, 256 Antuco volcano, 240 allanite, 160 Andean crust, 115 apatite, 48, 101, 160 alluvial fan deposits, 81 central, 219 aplite, 160 Almafuerte Lava Flows, 292, 298 Andean margin, 140, 219 Appalachians, 80 Alota, 248 tectonic evolution, 39 Araucarioxylon sp., 83 Alpine foreland, 288 volcanic arc, 89 arcs, 280 Alps Andean Orogenic Cycle, 94 calc-alkaline, 267, 268 Bouguer anomaly, 281, 285, 288 Andean plateau, 289 continental margin, 15, 237, 238 eastern, 279, 281, 288 Andean subduction zone deep crust, 189 gravity anomalies, 283 flat-slab portion, 146 early Paleozoic, 189 isostatic anomaly, 279, 282, 288 modern, 114 flat-slab magmas, 134 mass budget estimations, 287 Andean trend, 31 intra-oceanic island, 237, 239 topographic, 285 Andean volcanic front, 57 magmatism, 1, 10, 15, 37, 41, 73, western, 280 Andes, 46, 54, 58, 207, 218, 219, 88, 100, 134, 158, 159, 191 alteration, 85, 97 239, 240, 259 plutonism, 4, 11 Altiplano, 157, 210, 233, 245, 249, basalts, 86 segmented, 4 260, 266, 267, 273, 289 Bouguer anomaly, 281, 285, 288 volcanics, 175, 238 geochemistry, 160 central, 4, 113, 179, 186, 217, 218, Arentica stratocones, 248 geochronology, 159 233, 234, 237, 240, 242, 255, Arequipa area, 234 modeling, 168 264,273,279, 289,291 Arequipa Massif, 245 plutonic complexes, 157 evolution, 39 Arequipa volcanics, 239 rock types, 160 fore-arc basins, 267 Argentina, 13, 87, 100, 117, 186 Altiplano Basin, 247 gravity anomalies, 283 central, 79 Altiplano belt, 175 isostatic anomaly, 279,282, 288 northwestern, 189,201, 260 Altiplano-Puna region, 289 magmas, 218, 233 Argentine foreland, 190, 191 Altiplano-Puna Volcanic Complex mantle, 115 Argentine sector, 36 (APVC), 218,227 mass budget estimations, 287 Argentinian Puna, 245 Altos de Pica Formation, 247 orogeny, 2, 4, 10, 16, 100 Argomedo Beds, 186 Amazon plain, 269, 273 plutonic cycle, 32 Arica Bend, 248, 249 Amazonian foothills, 260 plutonic rocks, 31 Arica deflection, 291 Amazonian slope, 268 shortening, 273 Arica elbow, 249 ammonites, 15, 17 south-central, 201 Arica lithospheric block, 249 Ampato-Sabancaya-Hualca volcanic southern, 13,15,16, 22, 45, 273 assimilation, 70, 229, 268 complex, 261 tectonics, 29, 264 asthenosphere, 58, 59, 108 amphibole, 98, 105, 124, 193, 196, topographic heights, 285 Atacama, 202 205 volcanics, 45 Atacama fault system, 159, 280 amphibolite, 193 western, 245, 248, 249, 251, 252, Atajaña Formation, 295 garnet, 130 254, 255 Ataña Caldera collapse, 248 301 Downloaded from http://pubs.geoscienceworld.org/books/book/chapter-pdf/957756/spe265-bm.pdf by guest on 23 September 2021 302 Index Atana ignimbrite, 229 Bolivia, 202, 225, 245, 255 Cerro Chacay andesites, 117 augite, 84, 202, 203, 251 Bolivian Altiplano, 260, 266, 267, Cerro Chorrillos volcano, 202 Austroalpine region, 280 289 geochemistry, 207 avalanche deposits, 248 Bolivian oroclinal hypothesis, 292, mineralogy, 204 Avaroa Formation, 247, 251 295 petrography, 202 Avaroa horst, 249 Bolivian orocline, 245, 248, 249, Cerro Colorado, 84, 117, 122 Ayacara Formation, 31 255, 271, 291 lavas, 133 Ayacucho basin, 260, 266, 273 Bonete lavas, 251, 255 Cerro Corina caldera, 248 Ayacucho Formation, 266 Bouguer anomalies, 281, 285, 288 Cerro de las Tórtolas Formation, 116, Ayaviri area, 267 Bouguer gravity field, 281 117, 135, 144 Aysén region, 35 Brazil, 87 andesites, 122, 123 Azerbaijan, northern, 268 Brazilian shield, 263, 271, 274, 283 dacites, 125, 128 Azufre lavas, 63, 64 breccia, 18, 94, 180, 295 lavas, 132 Azurite mine, 251 rhyolite, 20 samples, 129 Cerro Galan, Argentina, 227, 235 banakites, 202, 203, 208, 269 Cabana Conde village, 261 Cerro Galan complex, 140 Bariloche area, 39 Cadillal Complex, 123 Cerro Guacha caldera, 225 Barranco volcano, 47 Caiti volcano, 248 Cerro Moromoroni, 267 B arrosa area, 234 Cajabamba basin, 266 shoshonites, 270 volcanics, 239 Calama fault, 202 Cerro Pabellón, 248 basalts, 15, 39, 48, 50, 54, 59, 60, calc-alkaline suites, 251 Cerro Pucara, 251 63, 79, 83, 89, 94, 108, 135, calcite, 94 Cerro Pulido andesites, 122, 133, 134 237, 239, 241, 249, 268 caldera collapse, 48, 247, 248 Cerro Pulido volcanic complex, 116 back-arc, 86, 134 caldera complexes, resurgent, 219 Cerro Zapata area, 16, 79 calc-alkaline, 267 Californian trench, 270 Cerros Bravos, 142, 143 flows, 267 Callejon de Huaylas, 267 Cerros del Vetado Complex, 159, 172, komatiitic, 181, 185, 186 Camaraca Formation, 293 174 mid-ocean ridge, 122 Camaraca Pole, 293 cesium, 48 middle ocean ridge (MORB), 48 Canal Baker area, 4, 10 Chacheuta Formation, 82 oceanic island (OIB), 48, 122, 123 Cantarito, 125 Chaitén, 35 olivine, 85, 87, 116 Cantarito ignimbrite, 117, 126 rhyolite, 48, 50, 54 parental, 70 Caiiani, 192 Chaitén volcano, 31, 46, 47, 48 pillow, 31, 181, 182 Cafiapa range, 248, 249 Chanaral Complex, 159, 172 plateau, 30 Cafiapa volcano, 248 Chanaral-El Salvador area, 158-160 sills, 83, 84 Capurata stratovolcano, 248 chert, 17 tholeiitic, 16, 86, 181 Carangas Massif, 251 chert-argillite, 17 true, 234 Carangas Quadrangle, 247 Chile, 13, 31, 41, 87, 249 basement carbonate, 189, 191 central, 93,99, 107 cratonic, 80 Caspana area, 219 northern, 157,179, 186, 225, 234, crystalline, 30, 31, 192, 245 Caspana ignimbrite, 218, 219, 226, 248 metamorphic, 30 229 northernmost 239 metasedimentary, 158, 165 Caspana magma chamber, 227 southern, 2 basins, See also specific basins Catreleo, 39 volcanics, 252 behind-arc, 158, 176 Cavilolen granitoid unit, 101, 106 Chile Margin triple junction, 2 extensional, 87 Cay volcanics, 54 Chile Rise Triple Junction, 2, 58 fore-arc, 271 Cayara Formation, 247 Chile Trench, 58 formation, 108 Cayutue unit, 36 Chilean Andes, 100, 103 inversion, 158 Cenozoic, 245,247 Chilean Central Valley, 58 marginal formation, 15 Central Andean margin, 271 Chilean Lake Region, 32, 35, 39 proto-marginal, 13, 22, 24 Central Patagonia Batholith, 38, 39, Chilean margin, 89 pull-apart, 158 41 Chilenia rhyolitic, 16 Central Valley, 30, 31 accretion, 198 rift, 22, 80, 87 Central Volcanic Zone (CVZ), 116, basement, 104 submarine, 13, 16 122, 139,140, 143, 218, 219, rocks, 100 batholith 233, 260 chlorite, 85, 94, 192 development, 4 geochemistry, 143, 234 Choiyoi complex, 133 southern Patagonian, I igneous rocks, 238 Choiyoi granite-rhyolite province, 80, Beazley basin, 80, 82 ignimbrites, 218 88 belemnites, 15, 17 lavas, 131, 237 Choiyoi Group, 81, 88 Belén area, 234 magmas, 234, 237, 238 Choiyoi rhyolites, 88 Belén-Choquipina terrains, 245 northern, 234 Choiyoi series, 38 Benioff Zone, 58, 245, 251 petrogenesis, 241 Chollay unit, 100, 101, 102 Benioff-Wadati zone, 260 southern, 133, 144, 234 Chon-Aike series, 38, 40 Berenguela Sandstone Formation, 247 southernmost, 149, 152 Choshuenco volcano, 240 Berlin group, 160 tectonics, 140 Chulee Formation, 297 biotite, 36, 94, 101, 160, 167, 174, volcanic rocks, 237, 240 Cifuncho Complex, 159, 166, 171, 192, 225, 234, 249, 251 Cerke stratovolcano, 248 174 blastomylonites, 101 Cerro Aconcagua volcanic rocks, 136 cinder cones, 47, 241 Bohemian Massif, 280 Cerro Cadillal volcanic complex, 117 Cladophlebis sp., 83 Downloaded from http://pubs.geoscienceworld.org/books/book/chapter-pdf/957756/spe265-bm.pdf by guest on 23 September 2021 Index 303 clastic-flow deposits, 19 deformation, 261 Descabezado Grande rhyolite, 52 clasts, 20, 21 growth, 237 detritus, 17 clays, 247 lower, 54, 59, 70, 73, 76, 89, 130, epiclastic, 17 clinopyroxene, 36, 48, 62, 64, 74, 84, 134, 135, 146, 210, 289 diabases, 94 129, 181, 182, 203, 204, 251 magmatic differentiation, 140 diastrophism, 247 Coast Belt, 99, 101,106, 108 melting, 89, 108 Dicroidium, 83 Coast Ranges, 30, 40, 41, 99, 101 middle, 89 odontopteroides, 83 Coastal Range, 157, 175 movement (vertical), 288 differentiation, 210,234,239 geochemistry, 160 oceanic, 58, 59, 235, 280 crustal, 145, 146, 152 geochronology, 159 quasioceanic, 98 deep-level processes, 239 modeling, 168 radiogenic, 4 high-pressure, 70 plutonic complexes, 157 recycling, 58 low-pressure, 68 rock types, 160 sources, 131 magmatic, 140, 186, 237, 238 Coastal Volcanics, 294, 295 subducting, 58 mantle-to-crust
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