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NARROW
GeoRef Subject
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all geography including DSDP/ODP Sites and Legs
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Asia
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oxygen
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Chordata
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Vertebrata
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Mammalia
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Reptilia
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Archosauria
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dinosaurs
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Saurischia
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Theropoda
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Coelurosauria
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Thecodontia (1)
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ichnofossils
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Planolites (1)
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Invertebrata
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Mandibulata
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Insecta
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Mollusca
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upper Pliocene (1)
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Paleogene
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Eocene
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Golden Valley Formation (1)
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Green River Formation (1)
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lower Eocene
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Wasatchian (1)
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Willwood Formation (1)
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Wind River Formation (1)
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Paleocene
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Lebo Member (1)
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lower Paleocene
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Danian (1)
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K-T boundary (1)
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Torrejonian (1)
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Ravenscrag Formation (1)
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Tongue River Member (15)
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Tullock Member (1)
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upper Paleocene
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Tiffanian (1)
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Wasatch Formation (18)
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-
-
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Mesozoic
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Cretaceous
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Dakota Formation (7)
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Lower Cretaceous
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Albian (1)
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Bear River Formation (1)
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Fall River Formation (6)
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Mowry Shale (6)
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Newcastle Sandstone (1)
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Upper Cretaceous
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Belle Fourche Shale (4)
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Campanian
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lower Campanian (1)
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Carlile Shale (2)
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Cenomanian (3)
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Cody Shale (6)
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Eagle Sandstone (1)
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Fox Hills Formation (2)
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Frontier Formation (12)
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Fruitland Formation (2)
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Gammon Ferruginous Member (1)
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Greenhorn Limestone (2)
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Hell Creek Formation (1)
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Judith River Formation (1)
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K-T boundary (1)
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Lance Formation (5)
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Maestrichtian (2)
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Mesaverde Group (4)
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Milk River Formation (1)
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Niobrara Formation (2)
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Parkman Sandstone (1)
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Pierre Shale (2)
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Senonian (4)
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Shannon Sandstone Member (6)
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Sharon Springs Member (1)
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Sussex Sandstone Member (4)
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Teapot Sandstone Member (1)
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Turonian (3)
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Wall Creek Member (5)
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Jurassic
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Triassic
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Paleozoic
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Devonian
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Upper Devonian
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Duperow Formation (1)
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Minnelusa Formation (21)
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New Albany Shale (1)
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Ordovician
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Upper Ordovician
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Red River Formation (2)
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Permian
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Lower Permian
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Leonardian (2)
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Opeche Shale (1)
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Wolfcampian (2)
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Lyons Sandstone (2)
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Phosphoria Formation (2)
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Tensleep Sandstone (2)
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upper Paleozoic
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Antrim Shale (1)
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Phanerozoic (2)
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igneous rocks
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sorosilicates
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sheet silicates
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clay minerals
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illite (3)
-
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sulfates
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gypsum (1)
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sulfides
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pyrite (2)
-
-
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Primary terms
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absolute age (4)
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Asia
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Far East
-
China (1)
-
-
Himalayas (1)
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Indian Peninsula
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Pakistan (1)
-
-
-
Atlantic Ocean
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North Atlantic
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Gulf of Mexico (1)
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North Sea (1)
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-
-
Australasia
-
Australia
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New South Wales Australia (1)
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-
New Zealand (2)
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biogeography (1)
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Canada
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Arctic Archipelago (1)
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Nunavut
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Ellesmere Island (1)
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Queen Elizabeth Islands
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Ellesmere Island (1)
-
-
Western Canada
-
Alberta
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Alberta Basin (2)
-
-
Saskatchewan (1)
-
-
-
carbon
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C-13/C-12 (5)
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C-14 (1)
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organic carbon (2)
-
-
catalogs (1)
-
Cenozoic
-
Quaternary
-
Holocene (1)
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middle Quaternary (1)
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Pleistocene (1)
-
upper Quaternary (1)
-
-
Tertiary
-
lower Tertiary (1)
-
Neogene
-
Miocene (2)
-
Pliocene
-
upper Pliocene (1)
-
-
-
Paleogene
-
Eocene
-
Golden Valley Formation (1)
-
Green River Formation (1)
-
lower Eocene
-
Wasatchian (1)
-
Willwood Formation (1)
-
Wind River Formation (1)
-
-
-
Paleocene
-
Lebo Member (1)
-
lower Paleocene
-
Danian (1)
-
K-T boundary (1)
-
Torrejonian (1)
-
-
Ravenscrag Formation (1)
-
Tongue River Member (15)
-
Tullock Member (1)
-
upper Paleocene
-
Tiffanian (1)
-
-
-
Wasatch Formation (18)
-
-
-
-
Chordata
-
Vertebrata
-
Tetrapoda
-
Mammalia
-
Theria
-
Eutheria
-
Amblypoda
-
Pantodonta (1)
-
-
Condylarthra (1)
-
Insectivora
-
Dermoptera (1)
-
-
Primates (1)
-
-
-
-
Reptilia
-
Diapsida
-
Archosauria
-
dinosaurs
-
Saurischia
-
Theropoda
-
Coelurosauria
-
Tyrannosauridae
-
Tyrannosaurus
-
Tyrannosaurus rex (1)
-
-
-
-
-
-
-
Thecodontia (1)
-
-
-
-
-
-
-
clay mineralogy (4)
-
climate change (2)
-
coal deposits (1)
-
conservation (1)
-
crust (4)
-
crystal chemistry (1)
-
crystal structure (1)
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dams (1)
-
data processing (12)
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deformation (1)
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diagenesis (16)
-
earthquakes (4)
-
economic geology (69)
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electron microscopy (1)
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energy sources (15)
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engineering geology (2)
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epeirogeny (1)
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Europe
-
Central Europe
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Germany
-
Hesse Germany
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Messel Germany (1)
-
-
-
-
-
explosions (5)
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faults (9)
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folds (7)
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fractures (5)
-
geochemistry (19)
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geochronology (3)
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geology (1)
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geomorphology (3)
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geophysical methods (26)
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government agencies
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survey organizations (1)
-
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ground water (17)
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heat flow (1)
-
hydrogen
-
D/H (2)
-
deuterium (1)
-
-
hydrogeology (2)
-
hydrology (3)
-
ichnofossils
-
Planolites (1)
-
-
igneous rocks
-
volcanic rocks
-
glasses (1)
-
pyroclastics
-
tuff (1)
-
-
-
-
Indian Ocean
-
Arabian Sea
-
Persian Gulf (1)
-
-
-
Invertebrata
-
Arthropoda
-
Mandibulata
-
Insecta
-
Pterygota
-
Neoptera
-
Endopterygota
-
Diptera (1)
-
-
-
-
-
-
-
Mollusca
-
Bivalvia (2)
-
Cephalopoda
-
Ammonoidea (1)
-
-
Gastropoda (1)
-
-
-
isotopes
-
radioactive isotopes
-
C-14 (1)
-
U-238 (1)
-
-
stable isotopes
-
C-13/C-12 (5)
-
D/H (2)
-
deuterium (1)
-
O-18/O-16 (2)
-
S-34/S-32 (2)
-
Sr-87/Sr-86 (3)
-
-
-
land subsidence (1)
-
land use (2)
-
maps (4)
-
Mesozoic
-
Cretaceous
-
Dakota Formation (7)
-
Lower Cretaceous
-
Albian (1)
-
Bear River Formation (1)
-
Cloverly Formation (1)
-
Fall River Formation (6)
-
Mowry Shale (6)
-
Muddy Sandstone (11)
-
Newcastle Sandstone (1)
-
Skull Creek Shale (3)
-
-
Upper Cretaceous
-
Belle Fourche Shale (4)
-
Belly River Formation (1)
-
Campanian
-
lower Campanian (1)
-
-
Carlile Shale (2)
-
Cenomanian (3)
-
Cody Shale (6)
-
Eagle Sandstone (1)
-
Fox Hills Formation (2)
-
Frontier Formation (12)
-
Fruitland Formation (2)
-
Gammon Ferruginous Member (1)
-
Greenhorn Limestone (2)
-
Hell Creek Formation (1)
-
Judith River Formation (1)
-
K-T boundary (1)
-
Lance Formation (5)
-
Maestrichtian (2)
-
Mesaverde Group (4)
-
Milk River Formation (1)
-
Niobrara Formation (2)
-
Parkman Sandstone (1)
-
Pierre Shale (2)
-
Senonian (4)
-
Shannon Sandstone Member (6)
-
Sharon Springs Member (1)
-
Sussex Sandstone Member (4)
-
Teapot Sandstone Member (1)
-
Turonian (3)
-
Wall Creek Member (5)
-
-
-
Jurassic
-
Upper Jurassic
-
Entrada Sandstone (1)
-
-
-
Triassic
-
Upper Triassic (1)
-
-
-
metal ores
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copper ores (1)
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Powder River basin
Developments in Wyoming and Idaho in 1959
Sequence stratigraphy of the lower Pierre Shale of the southern Powder River Basin: A ramp margin sequence that terminates Niobrara Formation carbonate deposition
Reservoir stratigraphic heterogeneity within the Lower Cretaceous Muddy Sandstone in the Powder River Basin, northeast Wyoming, U.S.A.: Implications for carbon dioxide sequestration
Estimation of kerogen porosity in source rocks as a function of thermal transformation: Example from the Mowry Shale in the Powder River Basin of Wyoming
Tracking solutes and water from subsurface drip irrigation application of coalbed methane–produced waters, Powder River Basin, Wyoming
Climate control on Quaternary coal fires and landscape evolution, Powder River basin, Wyoming and Montana
Local tectonic control on parasequence architecture: Second Frontier sandstone, Powder River Basin, Wyoming
The geochemical evolution of water coproduced with coalbed natural gas in the Powder River Basin, Wyoming
Using HEM surveys to evaluate disposal of by-product water from CBNG development in the Powder River Basin, Wyoming
Cornucopia of coal and coalbed gas in the Powder River Basin: From mining and utilization to methane and methanogens
Abstract The Powder River Basin of northeast Wyoming and southeast Montana contains coal resources larger than those of any other basin of comparable size in the United States. These coal resources are developed in 16 strip mines for coal-fired power plants and for coalbed methane in more than 20,000 wells for distribution throughout the country. During this field trip, strip mining methodology and technology at the Wyodak coal mine, and operations at the nearby Wyodak power plant and in coalbed methane fields will be observed and discussed. The power plant utilizes feed coal from the mine and supplies electricity for the City of Gillette and surrounding areas. Coalbed methane development in the basin has coexisted with coal mining since the early 1980s. The same coal beds that are being mined yield gas in the subsurface, which is produced, collected, and moved to pipelines to access the interstate pipeline grid to serve the Rocky Mountains, Midwest, and California customers. Keywords: Powder River Basin, Wyoming, coal, coalbed methane, gas.
Sub-hydrostatic pore pressure in coalbed and sand aquifers of the Powder River Basin, Wyoming and Montana, and implications for disposal of coalbed-methane-produced water through injection
Strontium isotopes as indicators of aquifer communication in an area of coal-bed natural gas production, Powder River Basin, Wyoming and Montana
Hydraulic fracturing and wellbore completion of coalbed methane wells in the Powder River Basin, Wyoming: Implications for water and gas production
Geochronology of clinker and implications for evolution of the Powder River Basin landscape, Wyoming and Montana
Abstract In the Powder River Basin of southeast Montana and northeast Wyoming, coal beds exposed by regional erosion have burned naturally from as early as the Pliocene to the present. Layers of reddish clinker, formed by baking, welding, and melting of sediments above burned coal beds, cover over 4000 km 2 and cap ridges and escarpments throughout the dissected landscape of the Powder River Basin. Fission-track (ZFT) and (U-Th)/He (ZHe) ages of zircon grains from baked sandstones in clinker provide new insights about rates of regional erosion as well as episodic advance of coal fires into hillsides. Older, resistant clinker layers up to 60 m thick, formed by the burning of thick coal beds, cap summits and broad benches. Younger clinker rims, from thinner coals, form ledges on valley sides. ZHe ages of clinker, mainly from the Wyodak-anderson coal zone of the fort Union formation in the Rochelle Hills east of Wright, Wyoming, and from the Wyodak-anderson and Knobloch coal zones in the Tongue River valley near Ashland and Birney, Montana, range from 1.1 Ma to 10 ka. These dates generally agree with ZFT ages of clinker analyzed in the early 1980s, but they are a more precise record of ancient coal fires in the region. Our data indicate 0.2–0.4 km of vertical erosion in the past 1 m.y. Spatial-temporal patterns of clinker ages may prove to be useful in deciphering the patterns of fluvial incision and basin excavation in the Powder River Basin during the late Cenozoic and in weighing the relative importance of uplift, variations in climate, and base-level change.