USGS Home
Contact USGS
Search USGS

Interactive Maps > Data Download > Geology > by state

Geologic units containing evaporite

Colorado

Chinle and Chugwater Fms (Phanerozoic | Mesozoic | Triassic)

Eagle Valley Fm (Phanerozoic | Paleozoic | Carboniferous Pennsylvanian)

Siltstone, shale, and local gypsum

Eagle Valley Fm - evaporitic facies (Phanerozoic | Paleozoic | Carboniferous Pennsylvanian)

Gypsum, siltstone, and shale; salt present in deep borings. Intertongues with Minturn and Lower Maroon Fms. Diapiric structure in many places

Evaporitic facies of Minturn And Belden Fms in South Park and southward (Phanerozoic | Paleozoic | Carboniferous Pennsylvanian)

Gypsum, siltstone, and shale

Moenkopi Fm (Phanerozoic | Mesozoic | Triassic)

Red siltstone, mudstone, sandstone, and local gypsum

Iowa

Ft. Dodge Beds (Phanerozoic | Mesozoic | Jurassic)

Gypsum and red and green shale; in Webster CO only

Michigan

Salina Group (Late Silurian)

Salina Group

Montana

Jurassic, undifferentiated (Phanerozoic | Mesozoic | Jurassic)

Jurassic, undifferentiated: calcareous shale and sandstone; includes the Morrison formation, the Ellis group, Sundance formation, and other rocks of Jurassic age.

Nebraska

Pierre Shale (Phanerozoic | Mesozoic | Cretaceous-Late)

Mostly medium to dark-gray, brownish-gray, and black, fissle clay shale. Locally grades to thin beds of calcareous, silty shale or claystone, marl, shaly sandstone, and sandy shale. Locally contains thin seams of gypsum and sparse selenite crystals. Approx. max thickness 1970 ft.

New Mexico

Artesia Group (Phanerozoic | Paleozoic | Permian)

Artesia Group; shelf facies forming broad south-southeast trending outcrop from Glorieta to Artesia area; includes Grayburg, Queen, Seven Rivers, Yates, and Tansill Formations; Guadalupian. May locally include Moenkopi Formation (Triassic) at top

Castile Formation (Phanerozoic | Paleozoic | Permian)

Castile Formation; dominantly anhydrite sequence; Upper Permian

Panther Seep Formation (Phanerozoic | Paleozoic | Carboniferous Pennsylvanian)

Panther Seep Formation; Organ, Franklin, and San Andres Mountains

Quartermaster Formation (Phanerozoic | Paleozoic | Permian)

Quartermaster Formation; red sandstone and siltstone; Upper Permian

Rustler Formation (Phanerozoic | Paleozoic | Permian)

Rustler Formation; siltstone, gypsum, sandstone, and dolomite; Upper Permian

Salado Formation (Phanerozoic | Paleozoic | Permian)

Salado Formation; evaporite sequence; Upper Permian

San Andres Formation (Phanerozoic | Paleozoic | Permian)

San Andres Formation; limestone and dolomite with minor shale; Guadalupian in south, in part Leonardian to north

San Andres Limestone and Glorieta Sandstone (Phanerozoic | Paleozoic | Permian)

San Andres Limestone and Glorieta Sandstone; Guadalupian and Leonardian

Seven Rivers Formation (Phanerozoic | Paleozoic | Permian)

Seven Rivers Formation; gypsum, anhydrite, salt, dolomite, and siltstone; Guadalupian

Yates and Tansill Formations (Phanerozoic | Paleozoic | Permian)

Yates and Tansill Formations; sandstone, siltstone, limestone, dolomite, and anhydrite; Guadalupian

New York

Camillus and Syracuse Formations (Upper Silurian)

Camillus and Syracuse Formations - shale, dolostone, gypsum, salt.

Syracuse Formation (Upper Silurian)

Syracuse Formation - dolostone, shale, gypsum, salt.

Ohio

Detroit River Group (Devonian)

Detroit River Group - Dolomite; brown to gray; medium to thick bedded; laminated; nodules or interbeds of anhydrite and/or gypsum; basal part becomes sandy dolomite or fine-grained sandstone; as much as 170 feet thick.

Salina Group (Silurian)

Salina Group - Dolomite, gray, yellow-gray to olive-gray, laminated to thin bedded; occasional thin bed and laminae of dark gray shale and anhydrite and/or gypsum; brecciated zones in part.

Oklahoma

Blaine Formation (Phanerozoic | Paleozoic | Permian )

WOODWARD- Alternating cyclic sequence of 3 or 4 massive gypsum beds with red-brown shales, generally with a named dolomite at the base of each gypsum, and a greenish-gray shale at the base of each dolomite. The named unmapped sequence is (ascending) "Cedar Springs Dolomite, Medicine Lodge Gypsum," shale, "Magpie Dolomite, Nescatunga Gypsum," shale, "Altona Dolomite, Shimer Gypsum," shale, and"Haskew Gypsum" at top. Thickness ranges up to 90 feet, with the shales being thinner northward. CLINTON- "Blaine Formation," Pb, 3 to 4 gypsum and dolomite beds, about 100 to 200 feet thick, separated by reddish-brown shale. Gradational southward and eastward into Chickasha Formation. OKLAHOMA CITY- Mostly thin gypsums with thin dolomites below each gypsum, interbedded with red-brown shale; grades southward into "Chickasha Formation". Thickness, 50 to 75 feet. (El Reno Group)

El Reno Group (Phanerozoic | Paleozoic | Permian )

CLINTON- Primarily evaporites and reddish-brown shale, with deltaic clastics to the southeast. Where separate formations have not been distinguished, the "El Reno Group" is mapped as Per; El Reno Group. Includes: "Dog Creek Shale," Pdc, reddish-brown shale with thin beds of siltstone and dolomite; thickness, about 220 feet; gradational eastward into the Chickasha Formation. "Blaine Formation," Pb, 3 to 4 gypsum and dolomite beds, about 100 to 200 feet thick, separated by reddish-brown shale. Gradational southward and eastward into Chickasha Formation. "Flowerpot Shale," Pf, reddish-brown shale containing several salt and gypsum beds in the upper part. Thickness, about 300 to 450 feet; gradational southward and eastward into Chickasha Formation and Duncan Sandstone. "Cedar Hill Sandstone," Pch, greenish-gray sandstone and reddish-brown shales; thickness, about 180 feet; gradational southward into Duncan Sandstone. "Chickasha Formation," Pc, reddish-brown to maroon mudstone conglomerate with some shale, silstone, and fine- to coarse-grained sandstone; thickness, about 600 feet; gradational northward and westward into the Flowerpot Shale and the Blaine Formation and westward into Dog Creek Shale. "Duncan Sandstone," Pd, light-gray and reddish-brown, cross-bedded, fine-grained sandstone and mudstone conglomerate with some interbedded yellowish-gray and reddish-brown shales; thickness, about 200 feet; gradational into the Cedar Hills Sandstone northward and into the Flowerpot Shale northward and westward. LAWTON- Primarily evaporites and reddish-brown shale, with deltaic clastics to the east. In the eastern part of the quadrangle, separate formations have not been distinguished, and the "El Reno Group" is mapped as Per; in the western part of the quadrangle, the group has been mapped as four separate formations. "El Reno Group undifferentiated," Per, in northeastern part of the quadrangle, includes "Chickasha Formation" sandstone, shale, and siltstone, 400 to 580 feet (120 to 180 m) thick-and underlying "Duncan Sandstone" (equivalent to San Angelo Sandstone)-sandstone with some shale, 100 to 250 feet (30 to 76 m) thick.

Elm Fork Member of Blaine Formation (Phanerozoic | Paleozoic | Permian )

LAWTON- "Elm Fork Member," Pbe, of the Blaine Formation contains 3 dolomite-gypsum sequences with a total thickness of 80 to 110 feet (24 to 34 m).

Rush Springs Formation (Phanerozoic | Paleozoic | Permian )

WOODWARD- Orange-brown fine-grained sandstone, commonly crossbedded, with some interbedded red-brown shale, silty shale, and gypsum beds. In southern part of area, about 30 feet below top is a thin massive gypsum bed ("Weatherford Bed" or "One Horse Bed"), not mapped here. About 100 feet lower is another thin gypsum bed ("Old Crow Bed") not mapped here. Thickness is about 190 feet in southern part and 90 feet near Kansas border, with top eroded in many places. CLINTON- "Rush Springs Formation," Pr, orange-brown, cross-bedded, fine-grained sandstone with some dolomite and gypsum beds. Thickness, about 300 feet, thinning northward to about 186 feet. LAWTON- "Rush Springs Formation," Pr, very fine-grained, cross-bedded sandstone, 136 to 300 feet (41 to 90 m) thick. The "Weatherford Gypsum Bed," Prw, contains gypsum and dolomite and is as much as 60 feet (18 m) thick in the upper part of the Rush Springs. (Whitehorse Group) ARDMORE-SHERMAN- Sandstone, orange-brown, fine- to medium-grained, moderately indurated, with "Weatherford Gypsum Bed," Prw, 2 to 15 feet thick, near top. Thickness, about 280 feet, top eroded (Whitehorse Group)

Van Vacter Member of Blaine Formation (Phanerozoic | Paleozoic | Permian )

LAWTON- "Van Vacter Member," Pbv, of the Blaine Formation contains 6 dolomite-gypsum-shale sequences with a total thickness of 80 to 105 feet (24 to 32 m).

Weatherford Gypsum Bed of Rush Springs Formation (Phanerozoic | Paleozoic | Permian )

CLINTON- The "Weatherford Gypsum Bed," Prw, dolomite and gypsum beds, is about 30 to 60 feet below the top (mapped in southeastern part only). LAWTON- "Weatherford Gypsum Bed," Prw, contains gypsum and dolomite and is as much as 60 feet (18 m) thick in the upper part of the Rush Springs. (Whitehorse Group) ARDMORE-SHERMAN- "Weatherford Gypsum Bed," Prw, 2 to 15 feet thick, near top of Rush Springs Formation

Texas

Blaine Formation (Phanerozoic | Paleozoic | Permian [Guadalupe])

Blaine Formation

Briggs Formation (Phanerozoic | Paleozoic | Permian [Leonard])

Briggs Formation

Cloud Chief Formation (Phanerozoic | Paleozoic | Permian [Guadalupe])

Cloud Chief Formation

Dewey Lake Red beds (Phanerozoic | Paleozoic | Permian [Ochoa])

Dewey Lake Red beds

Quartermaster Formation and Whitehorse Group, undivided (Phanerozoic | Paleozoic | Permian [Guadalupe])

Quartermaster Formation and Whitehorse Group, undivided

Salado and Castile Formations, undivided (Phanerozoic | Paleozoic | Permian [Ochoa])

Salado and Castile Formations, undivided

San Angelo Formation (Phanerozoic | Paleozoic | Permian [Guadalupe])

San Angelo Formation

Whitehorse Group, undivided (Phanerozoic | Paleozoic | Permian [Guadalupe])

Whitehorse Group, undivided

alkali flat deposits (Phanerozoic | Cenozoic | Quaternary | Holocene)

alkali flat deposits

caliche deposits (Phanerozoic | Cenozoic | Quaternary | Pleistocene Holocene)

caliche deposits

gypsite deposits (Phanerozoic | Cenozoic | Quaternary | Pleistocene Holocene)

gypsite deposits

gypsum of Rustler, Salado, and Castile Formations, undivided (Phanerozoic | Paleozoic | Permian [Ochoa])

gypsum of Rustler, Salado, and Castile Formations, undivided

Utah

Pennsylvanian sedimentary rocks in southeastern Utah (Mississipian to Pennsylvanian)

Permian (2) sedimentary rocks in southwestern Utah (Early Permian)

Wyoming

Chugwater and Dinwoody Formations (Phanerozoic | Mesozoic | Triassic-Early Triassic-Middle(?) Triassic-Late)

CHUGWATER AND DINWOODY FORMATIONS. CHUGWATER FORMATION--Red siltstone and shale. Alcova Limestone Member in upper middle part. Thin gypsum partings near base. DINWOODY FORMATION--Olive-drab hard dolomitic thin-bedded siltstone.

Minnelusa Formation (Phanerozoic | Paleozoic | Carboniferous Pennsylvanian-Early Pennsylvanian-Middle(?) Pennsylvanian-Late(?) Permian)

MINNELUSA FORMATION--Buff and red limy sandstone; some thin limestone beds, solution breccias, and gypsum.

Spearfish Formation (Phanerozoic | Paleozoic Mesozoic | Permian Triassic-Early(?) Triassic-Middle(?) Triassic-Late)

SPEARFISH FORMATION--Red shale, red siltstone, and white gypsum beds; gypsum beds especially abundant near base.