Plate 5. Relation of Lithostratigraphic Units to Hydrogeologic Units, Overthrust Belt and Fossil Basin, Including Bear River Basin, Wyoming
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Hydrogeologic unit of Wyoming Hydrogeologic role/unit inferred from Hydrogeologic role/unit inferred from Hydrogeologic divisions of Hydrogeologic role/unit of Ahern et al. Hydrogeologic unit of Glover (1990) Hydrogeologic unit of TriHydro Corporation Lithostratigraphic units of Framework Water Plan Hydrogeologic unit used in this report SYSTEM AND SERIES Berry (1955) Robinove and Berry (1963) Lines and Glass (1975, Sheet 1)3 (1981, Figure II-7, Table IV-1, and text) [Bear River valley in Cokeville and (2002) Love et al. (1993)1 (WWC Engineering et al., 2007, Figure 4-9) for Bear River Basin [Cokeville area] [Bear River valley] [Overthrust Belt] [Overthrust Belt and Green River Basin] Evanston areas] [Cokeville area] ERATHEM [All of Wyoming] Holocene QUATERNARY Alluvium and terrace deposits1 Local aquifers Aquifers/local aquifers 8 – Quaternary sand and gravel Major aquifers – Quaternary aquifers Alluvial aquifer Major aquifer–alluvial Quaternary unconsolidated-deposit aquifers Pleistocene Pliocene Salt Lake Major aquifer– Major aquifer Salt Lake aquifer Formation sandstone 7 – Tertiary conglomerate and tuffs Miocene Not discussed/not defined or hydrogeologic characteristics unknown in investigators’ study area at time of study Not discussed or not present Oligocene in investigator’s study area CENOZOIC Intrusive igneous rocks Not discussed Marginal aquifer Major aquifer– Fowkes Formation Aquifer Major aquifer Fowkes aquifer sandstone 1 – Igneous and metamorphic rocks TERTIARY Eocene Hydrogeologic role/unit Green Confining not defined for study area Not discussed Not Green River River unit with aquifer and discontinuous discussed Formation confing unit Conglo- 6 – Tertiary siltstones and sandstones aquifers Not merate 2 Aquifer Major aquifer Wasatch Formation defined Not Not Major aquifer–sandstone Wasatch aquifer of Potential aquifer Wasatch aquifer at time discussed discussed Sublette of study Range Paleocene Minor aquifer (Hams Fork Evanston Formation Probable aquifer Minor aquifer Minor aquifer Evanston aquifer Conglomerate Member) Adaville Formation Not discussed Aquifer–Adaville aquifer4 Major aquifer–sandstone Adaville aquifer Discontinuous local Major aquitard Hilliard confining unit Upper Hilliard Shale Not discussed/not defined/not present or Probable confining unit Major aquitard aquifers or locally Cretaceous utilized aquifer Frontier Formation hydrogeologic characteristics unknown Potential aquifer Minor aquifer–Frontier aquifer Minor aquifer Frontier aquifer at time of study Sage Junction Formation Hydrogeologic role/unit not defined Probable Not discussed or not present Aspen Aspen Major confining 5 – Cretaceous shales and sandstones in investigator’s study area confining Shale aquitard Hydrogeologic Quealy Formation Not defined in unit Not discussed/not defined role/unit not defined unit CRETACEOUS investigators’ study area in investigators’ study area Thomas Fork Formation–aquifer Not discussed Cokeville Formation defined Hydrogeologic role/unit not defined at time of study at time of study role/unit not Bear Bear River Hydrogeologic Wayan Formation Wayan Potential Potential Marginal Thomas Fork Formation Thomas Fork aquifer River Formation aquifer aquifer aquifer aquifer Smiths Formation Minor aquifer Hydrogeologic role/unit not defined Lower Smoot Formation Cretaceous Draney Limestone Discontinuous aquifers Not defined Bechler Conglomerate Potential aquifer Marginal aquifer Gannett aquifer and confining unit with local confining units Peterson Limestone Gannett Group MESOZOIC Upper Jurassic–lower Cretaceous aquifers Ephraim Conglomerate Minor aquifer 4 – Jurassic and Cretaceous Upper Jurassic sandstones and limestones Stump Formation Potential aquifer Not discussed or not present Minor aquifer Hydrogeologic role/unit not defined JURASSIC Middle Aquitard (Figure II-7)/poor aquifer (Table IV-1) Preuss Sandstone or Redbeds Potential aquifer in investigator’s study area Minor aquifer Hydrogeologic role/unit not defined Jurassic Twin Creek Limestone Potential aquifer Minor aquifer Minor aquifer Twin Creek aquifer JURASSIC (?) AND TRIASSIC (?) Nugget Sandstone Potential aquifer Major aquifer Minor aquifer Major aquifer–sandstone Nugget aquifer Ankareh Formation Minor aquifer/minor regional aquifer, Potential aquifer locally confining Not discussed Ankareh aquifer Upper Triassic Thaynes Limestone Potential aquifer Major aquifer/regional aquifer Minor aquifer Thaynes aquifer TRIASSIC Nugget aquifer system 3 – Triassic and Permian Not discussed or not present siltstones and limestones in investigator’s study area Marginal aquifer Lower Woodside Shale Potential aquifer Aquitard Woodside confining unit Triassic Dinwoody Formation Probable confining unit Aquitard with locally productive zones Marginal aquifer Dinwoody aquifer and confining unit Phosphoria Formation and related rocks Potential aquifer Minor aquifer-locally confining Minor aquifer Phosphoria aquifer PERMIAN Upper Potential aquifer/good aquifer Major aquifer (identified as Tensleep Sandstone Major aquifer (identified as Wells Formation Potential aquifer Minor aquifer Not discussed Wells aquifer Pennsylvanian (identified as Tensleep Sandstone) on Figure II-7 and Wells Formation in text) Tensleep Sandstone)–limestone PENNSYLVANIAN Middle Pennsylvanian Lower Pennsylvanian Amsden Formation Potential aquifer Minor aquifer-locally confining Marginal aquifer Amsden aquifer Upper Mississippian MISSISSIPPIAN Madison Limestone Potential aquifer/good aquifer Major aquifer Major aquifer–limestone Madison aquifer Lower Mississippian Upper Darby Formation Major aquifer Major aquifer–limestone Darby aquifer Devonian DEVONIAN 2 – Paleozoic limestones Not discussed/not defined Hydrogeologic role/unit not defined PALEOZOIC Lower and sandstones in investigators’ study area Paleozoic aquifer system Devonian for study area Not discussed/not defined at time of study SILURIAN Upper and Laketown Dolomite or hydrogeologic characteristics Not discussed or not present Not discussed Middle Silurian unknown in investigators’ study area in investigator’s study area Upper Bighorn Dolomite at time of study Major aquifer Major aquifer–limestone Bighorn aquifer Ordovician Middle Not discussed/not defined/not present or ORDOVICIAN Ordovician hydrogeologic characteristics unknown Lower at time of study Ordovician Upper Gallatin Limestone Minor aquifer Minor aquifer Gallatin aquifer Cambrian CAMBRIAN Gros Ventre Formation Aquitard/regional aquitard Minor aquifer Gros Ventre confining unit Middle Cambrian Flathead Sandstone Minor aquifer–Flathead aquifer Major aquifer–limestone5 Flathead aquifer PRECAMBRIAN Precambrian rocks 1 – Igneous and metamorphic rocks Minor aquifer–Precambrian aquifer Major aquitard Precambrian basal confining unit 1Alluvium and terrace deposits of Quaternary age not included in Love at al. (1993). 2Includes main body Wasatch Formation, diamictite and sandstone, and Bullpen and Tunp Members. 3Lithostratigraphic units grouped into eight hydrogeologic divisions based on “somewhat similar origins, lithologies, and water-bearing properties” (Lines and Glass, 1975, Sheet 1). 4Adaville Formation defined as “major aquifer” in Figure II-7 and “minor aquifer” in Table IV-1 of Ahern et al. (1981). 5Predominant lithology is sandstone, and it is unknown why formation is defined as “Major aquifer–limestone” in WWC Engineering et al. (2007, Figure 4-9). Plate 5. Relation of lithostratigraphic units to hydrogeologic units, Overthrust Belt and Fossil Basin, including Bear River Basin, Wyoming..