INDEX 



Abajo Mountains, Fig. 26.7 

 Absaroka Range, 369 

 Absaroka thrust, Fig. 22.9, 334 

 Acadian belt, 120 

 Acadian orogeny, 36, 124, 170, 



180, 216 

 Acatita-Las Delicias area, Fig. 



28.6 

 Adel Mountain field, 571 

 Adeloida quadrangle, Fig. 17.2, 



272 

 Adirondack dome, 22 

 Adirondack Mountains, 157 

 Ajo district, Fig. 27.9 

 Alaska, 29, 81, 605 

 Alaska Peninsula, 614 

 Alaska Range, Fig. 39.1 

 Alberta basin, 55 

 Alberta shelf, 55 

 Alberta syncline, 61 

 Aleutian ridge, 519, 520 



Aleutian trench, Fig. 39.11 

 Aleutian volcanic belt, Fig. 



39.11, 621 

 Alexander Range, Fig. 17.18, 



280 

 Algoman orogenic belt, 27 

 Algoman orogeny, 26 

 Algoman province, Fig. 43, 25 

 Alkalic provinces, 566 

 Allegheny basin, Fig. 8.9, 106 

 Allegheny front, 103 

 Allegheny Plateaus, 100 

 Allegheny synclinorium, 97 

 Alpha Range, Fig. 40.6 

 Amargosa chaos, 499 

 Amarillo Mountains, 39, 237 

 Ammonoosuc thrust, 176 

 Anadarko basin, 242 

 Anadyr Gulf, Fig. 39.1 

 Andros Island deep test, 683 

 Anegada Passage, 681 

 Ancestral Rockies, 38 

 Ancestral Rockies system, 249 

 Anguille Mountains, Fig. 13.1 

 Aniakchak Tertiary province, 



618 

 Anticosti Island, 219 

 Antillean-Caribbean region, 670 

 Antler orogenic belt, Fig. 6.15, 



84 

 Antler orogeny, 83 

 Antler Peak quadrangle, 263 

 Apache (Reltian) group, 29 

 Appalachia, 169 

 Appalachian basin, Fig. 5.1, 40 

 Appalachian epeirogeny, 146 

 Appalachian geosyncline, Fig. 



5.1, 40, 97 

 Appalachian Mountains, Fig. 



8.3, 36, 40, 91, 97 

 Appalachian orogeny, 37, 217 

 Appalachian Plateau province, 



Fig. 7.1, 91, 92, 94 

 Appalachian salients and re- 

 cesses, 100 

 Arbuckle Mountains, Fig. 14.2, 



239 

 Arctic Archipelago, 23 

 Arctic Coastal Plain, 639 



Arctic foothills belt, Fig. 39.2, 



619 

 Arctic stable region, 26 

 Ardmore basin, 242 

 Arden draw thrust, Fig. 14.8, 



231 

 Arguello deep-sea fan, Fig. 32.2 

 Arizaba volcano, 701 

 Arizona Mountain region, 426 

 Arizona, southeastern, 428 

 Arizona, west-central, 438 

 Arkansas valley, 55 

 Artillery Mountains, Figs. 27.2, 



27.9 

 Adantic Coastal Plain, Figs. 7.1, 



7.3, 91, 94, 135 

 Atlantic continental shelf, 139 

 Atlantic ocean crust, 139 

 Attu Island, 519 

 Avalon Penninsula, Fig. 13.1, 



210 

 Aves swell, 692 

 Axel Heiberg Island, Fig. 40.1 



Baffin Bay, Figs. 40.1, 40.11 



Baffin Island, 26 



Bahama Islands, 682 



Baird Mountains, Fig. 39.1 



Baja California, 480 



Baker, Oregon, region, 75 



Baker-Glendive anticline, 360 



Balcones fault zone, 654 



Bannock thrust, 336 



Barbados, 686, 692 



Basins of Pennsylvania-New 

 York region, Fig. 8.6, 103 



Basins and banks, southern Cali- 

 fornia, 515 



Basin and Range system, 494 



Bathhurst Island, Fig. 40.3 



Batholiths of the international 

 border, 278 



Battle Mountains, Fig. 6.9, 76 



Bay of Fundy, 786 



Bayonne batholith, 276 



Bearpaw Mountains, Fig. 23.1, 

 357 



Beartooth Mountains, Fig. 23.1, 

 24.1, 363 



Beata ridge, Fig. 42.1 



739 



Beaverhead dome, Fig. 6.5 



Beaufort Sea basin, 644 



Belle Isle, Newfoundland, Fig. 



13.1, 13.11 

 Belt Island, 59 

 Beltian geanticline, 584 

 Beltian orogenic belt, 30 

 Beltian sequences, 29 

 Beltian strata, 29, 78 

 Beltian trough, Fig. 19.4, 32, 



299 

 Bend axis, 246 

 Bering land bridge, 624 

 Bering Sea, 521 

 Berkeley Hills block, 466 

 Berkshire Mountains, 161 

 Bermuda rise, 140 

 Big Belt Mountains, Fig. 23.1 

 Big Cottonwood series, 29 

 Big Pine fault, 471 

 Big Snowy basin, Fig. 6.6 

 Big Snowy Range, Fig. 23.1 

 Bighom basin, 372 

 Bighorn Range, 372 

 Bisbee district, 428 

 Bitterroot Range, 320, 503 

 Black Hills, Figs. 24.1, 24.11, 



27, 58, 374 

 Black Hills igneous rocks, 565 

 Black Mesa basin, 408 

 Black Warrior basin, Fig. 7.1 

 Blacktail Range, Fig. 22.5 

 Blake Bahama basin, Fig. 10.12, 



151 

 Blake Plateau, Fig. 10.6, 148 

 Blood Creek syncline, Fig. 23.1 

 Blue Mountains, Fig. 29.15, 74 

 Blue Mountains— Ochoco Moun- 

 tains uplift, 74 

 Blue Ridge front, 105 

 Blue Ridge Plateau, Fig. 8.13, 



108 

 Blue Ridge province, Fig. 7.1, 



92, 95, 97, 102, 107 

 Boktukol thrust, Fig. 14.2, 239 

 Boothia arch, Fig. 39.13, 635 

 Boothia Peninsula, 26 

 Boston basin, 185 

 Boulder batholith, 321, 579 

 Bourbon arch, Fig. 5.13, 51, 52 



Bowdoin dome, Fig. 23.1 

 Bowers Bank, 521 

 Brazeau River area, 314 

 Brevard schist belt, 119 

 British Honduras, 70} 

 British Mountains, 626 

 Bronson Hill anticline, 175 

 Brooks Range, Fig. 39.1, 610, 

 618 



Cabot Strait fault, 21 S 

 Cache Creek group, 79 

 Cache thrust, Fig. 22.9, 334 

 Caledonian orogeny, 216 

 California troueh. Fig. 17.9 

 Cambrian strata, 52, 55, 61, 85, 



84, 102 

 Cambridge arch, 55 

 Canadian Arctic, 633 

 Canadian cordillera, 80. 85 

 Canadian Rockies, Fig. 19.1. M. 



297, 302 

 Canadian shield, Fig. 5.1, 22. 



40, 51, 65 

 Candclaria Hills, 48 

 Canyon Ranee thrust. Fin. 22.18 

 Cape Breton Island, Fie. 12 1. 



196 

 Cape Fear arch, 138 

 Cape Henry, 139 

 Cape Mendocino, 467 

 Capistrano embayment, 439 

 Carihbees, 670 

 Carlisle prong. 107 

 Carolina slate belt, 119 

 Cascade Mountains, high. Fie. 



29.15 

 Cascade Mountains, northern, 



Fig. 29.15 

 Cascade Mountains, western, 



Fig. 29.15 

 Cascade volcanic complex, 555 

 Cascadia, 66 

 Cassiar Mountains, 84 

 Castle Mountain Ranee. Fig. 



29.7 

 Cat Creek fault /one. Fie. 23.1 

 Catalina uplift. Fie. 29.3 

 Catalina, 274 

 Cataract axis, 37 



