200 



UNITED STATES MINERAL RESOURCES 



Table 42. — Marine evaporite deposits of the United States 



[Evaporite minerals are gypsum, G; anhydrite, A; halite, H; polyhaltte, P; and the bittern salts of potassium and magnesium (chiefly sylvite, car- 

 nallitCf and langbeinite ) , S. Thicknesses are approximate and include nonevaporite rocks] 



Age and unit or formation 



Evaporite 

 mineral 

 recovered 



Evaporite-bearing rocks, undifferentiated 

 Gypsum-bearing rocks, undifferentiated - 



Cedar Keys Limestone 



Cretaceous : 



Gypsum-bearing rocks, undifferentiated 



Beds of Trinity, Fredericksburg, and 

 Washita age. 



Ferry Lake Anhydrite 



Hell to Finish Formation of Zeller (19&8, 1965). 



Cretaceous ( 7 ) or Jurasi 

 Fort Pierce Forma 



Jurassic: 



Todilto Limestone 



Malone Formation X 



Minas Viejas Group of Mexico X 



Buckner Formation X 



Werner Formation and Louann Salt X 



(Jurassic age uncertain). 



Curtis, Summerville, and Wanakah Formations ._ X 



Preuss Sandstone X 



Carmel Formation 

 Arapien Shale 



Twin Creek Limestone X 



Piper Formation X 



Gypsum Spring Formation X 



Triassic: 



Gypsum-bearing rocks, undifferentiated 



Moenkopi Formation 



Triassic and Permian: 



Goose Egg Formation X 



Spearfish Formation X 



Triassic (?) and Permian: 



Lykins Formation X 



Permian : 



Rustler, Salado. and Castile Formations X 



Artesia Group 



Blaine Formation 



Briggs Formation 



Pequop and Loray Formations of Steele (1960). 



Undifferentiated saline-bearing rocks of 



Permian age. 

 Kaibab Limestone 



Toroweap Formation 



Opeche Shale 



Yeso Formation , 



Clear Fork Group and Flowerpot Shale 

 Epitaph Dolomite and equivalents 



Wichita and Wellington Formations 

 Hennessey and Ninnescah Shales _, 



Stone Corral Formation 



Abo Formation 



Supai Formation 



Pakoon Limestone of McNair (1951) 

 Easly Creek Shale 



Permian (7) : 



Fort Dodge Gypsum of McGee (1884) 



X X 

 X X 



1.8O0 

 100 



1,500 

 150 



4.000 H 



150 



700 



200 i- 

 100 



300 

 400 



4,100 

 1,100 



300 

 400 

 260 

 1,000 

 1,500 

 300 



800 

 200 



Western Arizona shelf (western Arizona, Gypsum. 



southern Nevada). 



Central Arizona Halite. 



Various places in Coast Range and Mohave Gypsum. 



Uesert (southern and central Calitomia). 



South Florida shelf (Florida) — . 



Western Arizona shelf (southern Nevada) __ 



Florida shelf (Florida) ___ _ -_. 



Gulf Region (eastern Texas to Alabama) __ 



Northwestern shelf of Chihuahua trough — — . 



(southwestern New Mexico). 



South Florida shelf (Florida) 



Lacustrine (? ) basin (northwestern Gypsum. 



New Mexico). 



Chihuahua trough (western Texas) 



Rio Grande embayment (southern Texas) 



Gulf region (eastern Texas to Alabama) 



Gulf region (Texas to Alabama and Florida Gypsiun, 



Panhandle) . halite. 



Utah shelf (central and southwestern Utah 



and western Colorado). 



Western Wyoming-Idaho trough (northern 



Utah, southeastern Idaho, and south- 

 western Wyoming). 



Utah shelf (central and southwestern Utah)>_ 



Utah shelf (central Utah) Gypsum, 



halite. 



Western Wyoming trough (Wyoming and 



Idaho). 



Northern Rocky Mountain shelf (Montana)-- Gypsum. 



Williston basin and southwestern shelf Gypsum, 



(Montana, North and South Dakota, 



and Wyoming). 



Cordilleran eugeosyncline (northwestern Gypsum. 



Nevada, central-eastern Oregon, and 



western Idaho). 

 Western Arizona shelf (southwestern Utah, 



northwestern Arizona, and southern 



Nevada). 



Northwestern shelf of Denver basin (Wyom- Gypsum. 



ing and Colorado). 

 Williston basin (Montana and North and 



South Dakota). 



West side of the Denver basin (Colorado) Gypsum. 



Southern Permian basin (New Mexico and Sylvite, 



Texas). halite. 

 Northern and western shelf of Delaware basin 



(New Mexico). 



Eastern shelf of Permian basin (Texas) 



Central Permian basin (Texas and New 



Mexico) . 

 Northern and eastern Permian and Anadarko Gypsum. 



basins (Kansas, Oklahoma, and Texas). 



Diablo platform (Texas) 



Cordilleran miogeosyncline (eastern Nevada 



and western Utah). 

 Western Arizona shelf (western Arizona and Gypsum. 



southern California ) . 

 Western Arizona shelf (southern Nevada, 



southwestern Utah, and western Arizona). 

 Western Arizona shelf (southern Nevada, 



southwestern Utah, and western Arizona). 

 Williston basin (Montana and North and 



South Dakota). 

 Northwestern shelf of Delaware basin 



(New Mexico). 

 Northern and central Permian basin (Kansas, 



Oklahoma. Texas, and Colorado). 

 Sonoran trough (southeast Arizona and 



southwestern New Mexico). 



! Northern and central Permian basin and Halite, 



Anadarko basin (Kansas, Nebraska, Colo- gypsum. 



rado, and OIkahoma). 



Northwestern shelf of Delaware basin 



(New Mexico). 



She'f ( east-central Arizona ) 



Western Arizona shelf (southern Nevada) __ 



Northern Permian basin (Kansas) Gypsum. 



Northeastern shelf of Forest City Gypsum, 



hasin (Iowa). 



