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GREAT BASIN HISTORY
THE GREAT BASIN TODAY
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accreted Antler Antler orogeny Basin and Range beds belt Canyon carbonate caves Cenozoic central Nevada chemical clastics collision continent continental margin cool Cordilleran orogeny Cretaceous crust crystals Death Valley deep deposits depths desert early Paleozoic earth east eastern Great Basin environment erosion Farallon Plate faults feet flood flows forces formed fossils geologic geologists gold granite groundwater heat highlands Ice Age igneous rocks intrusive island arc John Running Jurassic lakes land late Paleozoic lava layers limestone magma ments Mesozoic metal metamorphic metamorphic core complexes metamorphic rocks microplate miles million years ago minerals mountain ranges moved muds North America North American Plate northern ocean floor oceanic plate Paleozoic perhaps playas Prepaleozoic region result rifting rivers Salt sand sea floor plate sedimentary rocks sediments shallow shelf Sierra siliceous Sonomia southern Nevada spreading center subduction surface tectonic thermal thrust thrust faults tion Triassic uplift Utah western zone