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Pb-206/Pb-204 (2)
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Pb-207/Pb-204 (2)
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Pb-208/Pb-204 (2)
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stable isotopes
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Hf-177/Hf-176 (2)
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Pb-207/Pb-204 (2)
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Pb-208/Pb-204 (2)
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Lu/Hf (1)
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metals
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hafnium
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Hf-177/Hf-176 (2)
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lead
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Pb-207/Pb-204 (2)
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Pb-208/Pb-204 (2)
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Invertebrata
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Articulata
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Protista
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microfossils
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thallophytes (1)
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geochronology methods
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Cenozoic
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upper Quaternary (1)
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Tertiary
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Challis Volcanics (2)
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Neogene
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Columbia River Basalt Group (1)
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upper Miocene (2)
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Pliocene
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lower Pliocene (1)
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Paleogene
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Claron Formation (1)
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Eocene
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Absaroka Supergroup (1)
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Lake Gosiute (1)
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middle Eocene (1)
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Renova Formation (1)
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Mesozoic
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Cretaceous
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Lower Cretaceous
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Blackleaf Formation (1)
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Mancos Shale (1)
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Upper Cretaceous (2)
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Navajo Sandstone (1)
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Triassic
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Lower Triassic
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MIS 5 (1)
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Paleozoic
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Cambrian
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Brigham Group (1)
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Lower Cambrian (1)
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Middle Cambrian
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Flathead Sandstone (1)
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Upper Cambrian
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Pilgrim Formation (1)
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Carboniferous
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Mississippian
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Lower Mississippian
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Kinderhookian (1)
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Madison Group (1)
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Upper Mississippian
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Chesterian
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Golconda Formation (1)
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Pennsylvanian (1)
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Devonian
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Lower Devonian
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Emsian (1)
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Upper Devonian
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Famennian (1)
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Jefferson Group (3)
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lower Paleozoic (1)
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Ordovician
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Eureka Quartzite (1)
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Lower Ordovician (1)
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Permian
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McCloud Limestone (1)
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Sauk Sequence (1)
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upper Paleozoic (3)
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Precambrian
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Prichard Formation (1)
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Purcell System (1)
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upper Precambrian
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Proterozoic
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Mesoproterozoic
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Newland Limestone (1)
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Neoproterozoic
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Cryogenian (1)
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Paleoproterozoic (2)
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Pocatello Formation (1)
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igneous rocks
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syenites (1)
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porphyry
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volcanic rocks
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glasses
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volcanic glass (1)
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pyroclastics
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hyaloclastite (1)
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ignimbrite (2)
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vitrophyre (1)
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metamorphic rocks
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metamorphic rocks
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gneisses (1)
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metaigneous rocks
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metadiorite (1)
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metasedimentary rocks (2)
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quartzites (3)
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minerals
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carbonates
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dolomite (2)
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oxides
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iron oxides (1)
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phosphates
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apatite (2)
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monazite (1)
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xenotime (1)
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silicates
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chain silicates
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pyroxene group (1)
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framework silicates
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feldspar group
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alkali feldspar
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sanidine (2)
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plagioclase (1)
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orthosilicates
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nesosilicates
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zircon group
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zircon (13)
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sorosilicates
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epidote group
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allanite (1)
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sheet silicates
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illite (1)
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mica group
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muscovite (1)
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Primary terms
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absolute age (18)
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Asia
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Indian Peninsula
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Pakistan (1)
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Canada
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Eastern Canada
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Newfoundland and Labrador
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Newfoundland (2)
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-
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Western Canada
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British Columbia
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Vancouver Island (1)
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-
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carbon
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C-13/C-12 (1)
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C-14 (1)
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Cenozoic
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Quaternary
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Holocene (3)
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Pleistocene
-
upper Pleistocene (1)
-
-
upper Quaternary (1)
-
-
Tertiary
-
Challis Volcanics (2)
-
Neogene
-
Miocene
-
Columbia River Basalt Group (1)
-
upper Miocene (2)
-
-
Pliocene
-
lower Pliocene (1)
-
-
-
Paleogene
-
Claron Formation (1)
-
Eocene
-
Absaroka Supergroup (1)
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Lake Gosiute (1)
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middle Eocene (1)
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Renova Formation (1)
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clay mineralogy (1)
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continental drift (1)
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crust (4)
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dams (1)
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data processing (1)
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geochemistry (4)
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geosynclines (5)
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geothermal energy (1)
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Graptolithina (1)
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ground water (1)
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hydrology (1)
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igneous rocks
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plutonic rocks
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diorites (1)
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granites
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A-type granites (1)
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syenites (1)
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ultramafics (1)
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porphyry
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vitrophyre (1)
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volcanic rocks
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basalts (2)
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glasses
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volcanic glass (1)
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pyroclastics
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hyaloclastite (1)
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ignimbrite (2)
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tuff (2)
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vitrophyre (1)
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inclusions
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fluid inclusions (1)
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intrusions (5)
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Invertebrata
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Arthropoda
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Trilobitomorpha
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Trilobita (1)
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-
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Brachiopoda
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Articulata
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Rhynchonellida (1)
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Spiriferida
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Spiriferidina
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Spiriferidae (1)
-
-
-
-
-
Cnidaria
-
Hydrozoa (1)
-
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Protista
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Foraminifera (1)
-
-
-
isotopes
-
radioactive isotopes
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Be-10 (1)
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C-14 (1)
-
Pb-206/Pb-204 (2)
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Pb-207/Pb-204 (2)
-
Pb-208/Pb-204 (2)
-
-
stable isotopes
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C-13/C-12 (1)
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Hf-177/Hf-176 (2)
-
Pb-206/Pb-204 (2)
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Pb-207/Pb-204 (2)
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Pb-208/Pb-204 (2)
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Sr-87/Sr-86 (1)
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-
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magmas (1)
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mantle (1)
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Mesozoic
-
Cretaceous
-
Lower Cretaceous
-
Blackleaf Formation (1)
-
-
Mancos Shale (1)
-
Upper Cretaceous (2)
-
-
Navajo Sandstone (1)
-
Triassic
-
Lower Triassic
-
Scythian (1)
-
-
-
-
metal ores
-
base metals (1)
-
bismuth ores (1)
-
cobalt ores (3)
-
copper ores (3)
-
gold ores (2)
-
iron ores (1)
-
rare earth deposits (3)
-
silver ores (2)
-
-
metals
-
alkaline earth metals
-
beryllium
-
Be-10 (1)
-
-
strontium
-
Sr-87/Sr-86 (1)
-
-
-
hafnium
-
Hf-177/Hf-176 (2)
-
-
lead
-
Pb-206/Pb-204 (2)
-
Pb-207/Pb-204 (2)
-
Pb-208/Pb-204 (2)
-
-
precious metals (1)
-
rare earths (1)
-
-
metamorphic rocks
-
gneisses (1)
-
metaigneous rocks
-
metadiorite (1)
-
-
metasedimentary rocks (2)
-
quartzites (3)
-
-
metamorphism (1)
-
metasomatism (2)
-
mineral deposits, genesis (6)
-
mineral exploration (1)
-
mineral resources (1)
-
North America
-
Basin and Range Province (8)
-
North American Cordillera (12)
-
Rio Grande Rift (1)
-
Rocky Mountains
-
U. S. Rocky Mountains
-
Bighorn Mountains (1)
-
Bitterroot Range
-
Beaverhead Mountains (3)
-
-
-
-
Transcontinental Arch (1)
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Western Interior
-
Western Interior Seaway (1)
-
-
-
orogeny (4)
-
paleogeography (11)
-
paleomagnetism (2)
-
paleontology (1)
-
Paleozoic
-
Cambrian
-
Brigham Group (1)
-
Lower Cambrian (1)
-
Middle Cambrian
-
Flathead Sandstone (1)
-
-
Upper Cambrian
-
Pilgrim Formation (1)
-
Steptoean (1)
-
-
-
Carboniferous
-
Mississippian
-
Lower Mississippian
-
Kinderhookian (1)
-
-
Madison Group (1)
-
Upper Mississippian
-
Chesterian
-
Golconda Formation (1)
-
-
-
-
Pennsylvanian (1)
-
-
Devonian
-
Lower Devonian
-
Emsian (1)
-
-
Upper Devonian
-
Famennian (1)
-
Jefferson Group (3)
-
-
-
lower Paleozoic (1)
-
middle Paleozoic (1)
-
Ordovician
-
Eureka Quartzite (1)
-
Lower Ordovician (1)
-
Upper Ordovician
-
Bighorn Dolomite (1)
-
-
-
Permian
-
McCloud Limestone (1)
-
-
Sauk Sequence (1)
-
Silurian (1)
-
upper Paleozoic (3)
-
-
paragenesis (2)
-
petroleum (1)
-
petrology (3)
-
Plantae
-
algae (1)
-
-
plate tectonics (4)
-
Precambrian
-
Archean (1)
-
Prichard Formation (1)
-
Purcell System (1)
-
upper Precambrian
-
Proterozoic
-
Mesoproterozoic
-
Belt Supergroup (2)
-
Newland Limestone (1)
-
-
Neoproterozoic
-
Cryogenian (1)
-
-
Paleoproterozoic (2)
-
Pocatello Formation (1)
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Windermere System (1)
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-
-
-
remote sensing (1)
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sea-level changes (1)
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sedimentary petrology (3)
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sedimentary rocks
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carbonate rocks (1)
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chemically precipitated rocks
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chert (1)
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clastic rocks
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arenite
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quartz arenite (1)
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argillite (1)
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conglomerate (3)
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diamictite (1)
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sandstone (3)
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sedimentary structures
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bioturbation (1)
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sedimentation (4)
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sediments
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colluvium (1)
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seismology (4)
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stratigraphy (9)
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structural analysis (1)
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structural geology (4)
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tectonics
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neotectonics (4)
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thallophytes (1)
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United States
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Arizona
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Mohave County Arizona (1)
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California
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Riverside County California (1)
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Sierra Nevada Batholith (1)
-
-
Coeur d'Alene mining district (1)
-
Colorado (1)
-
Colorado Plateau (2)
-
Columbia Plateau (2)
-
Hurricane Fault (1)
-
Idaho
-
Bannock Range (1)
-
Blaine County Idaho (2)
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Butte County Idaho (2)
-
Clark County Idaho (1)
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Custer County Idaho
-
Borah Peak (2)
-
-
Elmore County Idaho (1)
-
Fremont County Idaho (1)
-
Idaho County Idaho (1)
-
Lemhi County Idaho
-
Blackbird mining district (2)
-
-
Lemhi Range (3)
-
Lost River Fault (3)
-
Lost River Range
-
Borah Peak (2)
-
-
Snake River plain (8)
-
-
Idaho Batholith (2)
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Iowa
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Dallas County Iowa (1)
-
-
Missouri River (1)
-
Mojave Desert (1)
-
Montana
-
Beaverhead County Montana (3)
-
Gallatin County Montana
-
Hebgen Lake (1)
-
-
Madison County Montana (1)
-
-
Moxa Arch (1)
-
Nevada
-
Lincoln County Nevada (1)
-
Mineral County Nevada (1)
-
Mormon Mountains (1)
-
Roberts Mountains Allochthon (1)
-
-
Owyhee Mountains (1)
-
Sevier orogenic belt (1)
-
U. S. Rocky Mountains
-
Bighorn Mountains (1)
-
Bitterroot Range
-
Beaverhead Mountains (3)
-
-
-
Utah
-
Cache County Utah (1)
-
Juab County Utah (1)
-
Millard County Utah (1)
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Sanpete County Utah (1)
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Sevier Desert (1)
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Washington County Utah (1)
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Walker Lane (1)
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Washington
-
Stevens County Washington (1)
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Western U.S. (9)
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Wyoming
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Rock Springs Uplift (1)
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-
Yavapai Province (1)
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Yellowstone River (1)
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weathering (1)
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well-logging (1)
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rock formations
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Beaverhead Formation (2)
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Nanaimo Group (1)
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Riggins Group (1)
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sedimentary rocks
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sedimentary rocks
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carbonate rocks (1)
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chemically precipitated rocks
-
chert (1)
-
-
clastic rocks
-
arenite
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1-20 OF 91 RESULTS FOR
Lemhi City
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Journal Article
Detrital zircon analysis of Mesoproterozoic and Neoproterozoic metasedimentary rocks of north-central Idaho: implications for development of the Belt–Purcell basin
Journal: Canadian Journal of Earth Sciences
Publisher: Canadian Science Publishing
Published: 12 October 2010
Canadian Journal of Earth Sciences (2010) 47 (11): 1383–1404.
... with the Prichard Formation. Samples from the Golden and Elk City sequences have significant numbers of 1500–1380 Ma grains, which indicates that they do not predate the Belt. Rather, they are probably from a relatively young, southwestern part of the Belt Supergroup (Lemhi subbasin). Non-North American (1610–1490...
Includes: Supplemental Content
Journal Article
Long-distance longitudinal transport of gravel across the Cordilleran thrust belt of Montana and Idaho
Journal: Geology
Publisher: Geological Society of America
Published: 01 May 2000
Geology (2000) 28 (5): 439–442.
.... Ultimately, the Lemhi Pass and Hawley Creek paleovalleys provided several thousand cubic kilometers of quartzite debris to the Pinyon and Harebell conglomerates of northwest Wyoming 200–350 km away, and formed the northwest half of a giant longitudinal drainage system. Sevier contraction, not the rising...
Journal Article
500–490 Ma detrital zircons in Upper Cambrian Worm Creek and correlative sandstones, Idaho, Montana, and Wyoming: Magmatism and tectonism within the passive margin
Journal: Lithosphere
Publisher: GSW
Published: 11 October 2017
Lithosphere (2017) 9 (6): 910–926.
... ), approximate extent of the Lemhi arch (modified from Ruppel, 1986 ), and location of ca. 1.4 Ga plutons and isotopically delineated 1.4 Ga lithosphere ( Doughty and Chamberlain, 1996 ; Elk City domain of Gaschnig et al., 2013 ). Line of cross section of Figure 11 is shown. SRTF—Snake River transfer fault...
Journal Article
Permian Rocks in Lemhi Range, Idaho : GEOLOGICAL NOTES
Journal: AAPG Bulletin
Publisher: American Association of Petroleum Geologists
Published: 01 May 1954
AAPG Bulletin (1954) 38 (5): 923–925.
... containing the fusulinid Schwegerina , of early Permian Wolfcampian age, at the extreme southern end of the Lemhi Range, Idaho. This occurrence is believed significant because for many years there has been insufficient evidence for correlation of the central Idaho Pennsylvanian and Permian rocks with better...
Journal Article
Toward Reconciling Magnitude Discrepancies Estimated from Paleoearthquake Data
Journal: Seismological Research Letters
Publisher: Seismological Society of America
Published: 01 May 2012
Seismological Research Letters (2012) 83 (3): 555–565.
... when paleoearthquake data for the Wasatch, Lost River, and Lemhi faults are used, demonstrating self-similarity in the predicted magnitudes and implying that an M w ( L seg ) relation should supplant M w ( SRL ) relations currently employed in seismic hazard analyses, in particular for normal...
Journal Article
Facies Across Paleozoic Miogeosynclinal Margin of Central Idaho
Journal: AAPG Bulletin
Publisher: American Association of Petroleum Geologists
Published: 01 May 1962
AAPG Bulletin (1962) 46 (5): 569–591.
... by local diastems, unconformably oversteps Ordovician Kinnikinic Quartzite and Precambrian Belt strata in southwestern Montana and in the Beaverhead Range along the Idaho-Montana border. West of the southern Lemhi Range the importance of the Devonian regional unconformity diminishes and variable amounts...
Journal Article
A Thermal Profile across the Idaho-Montana Fold-Thrust Belt Reveals a Low-Relief Orogenic Wedge That Developed atop a Pre-Orogenic Basement High
Journal: Lithosphere
Publisher: GSW
Published: 15 November 2022
Lithosphere (2022) 2022 (1): 9475780.
... burial of deformed strata within the retroarc Idaho-Montana fold-thrust belt, we use Raman spectroscopy of carbonaceous material to construct a maximum temperature profile that constrains the thicknesses of eroded rocks structurally above the Lemhi arch, a pre-thrusting basement high. In the eastern...
Includes: Supplemental Content
Journal Article
Foreland basin response to middle Cretaceous thrust belt evolution, southwestern Montana, USA
Journal: Geosphere
Publisher: Geological Society of America
Published: 04 November 2022
Geosphere (2022) 18 (6): 1783–1803.
.... Stage 2 (105–101 Ma) records initial unroofing of upper Paleozoic–Triassic strata via propagation of the fold-thrust belt into eastern Idaho, accommodating shortening of Mississippian and younger rocks above the Lemhi Arch. Stage 3 (102–100 Ma) records continued unroofing in central Idaho down...
Image
(A) Present-day outcrop map of the U.S. northern Rocky Mountains. Black squ...
in 500–490 Ma detrital zircons in Upper Cambrian Worm Creek and correlative sandstones, Idaho, Montana, and Wyoming: Magmatism and tectonism within the passive margin
> Lithosphere
Published: 11 October 2017
): BHp—Beaverhead pluton; DCp—Deep Creek pluton; LG—Leaton Gulch, MC—Midnight Creek; ML—Melrose; MP—McPherson Canyon; SC—Secret Canyon; TP—Teton Pass; WC—Weston Canyon; WR—Wind River Canyon. (B) Basement domains (modified from Gaschnig et al., 2013 ), approximate extent of the Lemhi arch (modified from
Journal Article
Upper Cretaceous-Paleocene Synorogenic Conglomerates of Southwestern Montana
Journal: AAPG Bulletin
Publisher: American Association of Petroleum Geologists
Published: 01 October 1970
AAPG Bulletin (1970) 54 (10): 1843–1867.
... as alluvial-fan debris. The cross-bedded sandstone of the Monida Formation on the southeast may represent deposition on the distal parts of alluvial fans or possibly on adjacent fan aprons or floodplains. 2 Cities Service Oil Company. I thank Cities Service Oil Company for permission to publish...
Journal Article
Palaeoaplysina (Hydrozoan?) Carbonate Buildups from Upper Paleozoic of Idaho
Journal: AAPG Bulletin
Publisher: American Association of Petroleum Geologists
Published: 01 April 1976
AAPG Bulletin (1976) 60 (4): 584–607.
...H.Breuninger Ray Abstract The plate-shaped calcareous hydrozoan? Palaeoaplysina Krotov is the main fossil in Late Pennsylvanian and Early Permian carbonate buildups in the Lemhi Range and Arco Hills of east-central Idaho. Palaeoaplysina has an internal subparallel canal system imbedded in cellular...
Journal Article
SHRIMP U-Pb dating of recurrent Cryogenian and Late Cambrian–Early Ordovician alkalic magmatism in central Idaho: Implications for Rodinian rift tectonics
Journal: GSA Bulletin
Publisher: Geological Society of America
Published: 01 March 2010
GSA Bulletin (2010) 122 (3-4): 430–453.
... Lemhi Arch and narrow miogeoclinal facies belts and it lies inboard of a northwest-striking narrow zone of thinned continental crust. These features define a northeast-extending upper-plate extensional system between southeast Washington and southeast Idaho that formed a segment of the Neoproterozoic...
Journal Article
Strata-Bound Fe-Co-Cu-Au-Bi-Y-REE Deposits of the Idaho Cobalt Belt: Multistage Hydrothermal Mineralization in a Magmatic-Related Iron Oxide Copper-Gold System
Journal: Economic Geology
Publisher: Society of Economic Geologists
Published: 01 September 2012
Economic Geology (2012) 107 (6): 1089–1113.
... to the geochemically diverse nature of these elements. This paper describes the mineralogy and geochemistry of strata-bound Fe-Co-Cu-Au-Bi-Y-REE deposits of the Idaho cobalt belt in Lemhi County, east-central Idaho. The focus is on the Blackbird district, but other deposits in the Idaho cobalt belt, both strata...
Includes: Supplemental Content
Journal Article
Structural Controls and Evolution of Gold-, Silver-, and REE-Bearing Copper-Cobalt Ore Deposits, Blackbird District, East-Central Idaho: Epigenetic Origins
Journal: Economic Geology
Publisher: Society of Economic Geologists
Published: 01 June 2011
Economic Geology (2011) 106 (4): 585–618.
... constrained ages and uncertain correlations, and (3) two Mesoproterozoic arkosic metasandstone and siltite units of the Lemhi Group (more than 9,000 m thick). The stratigraphic relations between Lemhi and Yellowjacket successions remain undetermined and they lie on different thrust plates ( Tysdal, 2000b...
Journal Article
Extension-driven right-lateral shear in the Centennial shear zone adjacent to the eastern Snake River Plain, Idaho
Journal: Lithosphere
Publisher: GSW
Published: 01 August 2013
Lithosphere (2013) 5 (4): 407–419.
... Belt ( Smith and Arabasz, 1991 ); OP—Owyhee-Oregon Plateau; RM—Rocky Mountains; SRP—Snake River Plain; and YP—Yellowstone Plateau. Thin black lines show Quaternary faults ( U.S. Geological Survey, 2007 ). Holocene normal faults are labeled for the Beaverhead (BH), Centennial (CN), Lemhi (LH), Lima...
Journal Article
The 31 March 2020 M w 6.5 Stanley, Idaho, Earthquake: Seismotectonics and Preliminary Aftershock Analysis
Journal: Seismological Research Letters
Publisher: Seismological Society of America
Published: 09 December 2020
Seismological Research Letters (2021) 92 (2A): 663–678.
... of the lake ( Idaho Geological Survey, 2020 ). In the resort community of Sun Valley ( ∼ 100 km epicentral distance) and the capital city of Boise ( ∼ 115 km epicentral distance), modified Mercalli intensities of 4 were reported. * Corresponding author: [email protected]...
Journal Article
Stratigraphic and geochronologic investigation of the Muddy Creek Basin: Implications for the Eocene tectonic evolution of southwest Montana, USA
Journal: GSA Bulletin
Publisher: Geological Society of America
Published: 13 February 2024
GSA Bulletin (2024) 136 (9-10): 3619–3633.
... sediment into the Green River Basin. We attribute initial ponding to regional drainage reorganization and damning of the paleo–Idaho River due to uplift and doming of the southern Absaroka volcanic province, resulting in its diversion away from the Green River Basin and backfilling of the Lemhi Pass...
Journal Article
Evolution of the Late Cretaceous Nanaimo Basin, British Columbia, Canada: Definitive provenance links to northern latitudes
J. Brian Mahoney, James W. Haggart, Marty Grove, David L. Kimbrough, Virginia Isava, Paul K. Link, Mark E. Pecha, C. Mark Fanning
Journal: Geosphere
Publisher: Geological Society of America
Published: 08 November 2021
Geosphere (2021) 17 (6): 2197–2233.
... from Belt Supergroup (1700–1720 Ma) and ca. 1380 Ma plutonic rocks intruding the Lemhi subbasin of central Idaho (northwestern United States); (3) quartzite clasts that are statistical matches for Mesoproterozoic and Cambrian strata in Montana and Idaho (northwestern United States) and southern British...
Journal Article
Between the supercontinents: Mesoproterozoic Deer Trail Group, an intermediate age unit between the Mesoproterozoic Belt–Purcell Supergroup and the Neoproterozoic Windermere Supergroup in northeastern Washington, USA
Journal: Canadian Journal of Earth Sciences
Publisher: Canadian Science Publishing
Published: 27 May 2020
Canadian Journal of Earth Sciences (2020) 57 (12): 1411–1427.
... Supergroup Washington U–Pb zircon ages were determined using a Finnigan Element2 ICP–MS (Fisher Scientific, Salt Lake City, Utah) combined with a New Wave UP-213 laser ablation system (Fremont, California, USA) at the Peter Hooper GeoAnalytical Lab at Washington State University, Pullman, Washington...
Journal Article
Linking exhumation, paleo-relief, and rift formation to magmatic processes in the western Snake River Plain, Idaho, using apatite (U-Th)/He thermochronology
Journal: Geosphere
Publisher: Geological Society of America
Published: 11 February 2022
Geosphere (2022) 18 (2): 885–909.
...., Densmore et al., 2004 ; Ellis and Barnes, 2015 ). Activity on the faults may span the Miocene through Holocene, concurrent with similarly NW-SE–oriented Basin and Range structures in east-central Idaho, such as the Lost River, Lemhi, and Beaverhead faults ( Fig. 1 ; Haller, 1988 ; Haller and Wheeler...
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