Description
Mountain Fuel Supply Co.
Commodities
PrimarySoda Ash, Sodium Carbonate
TertiaryOil Shale, Halite
Commodity typeN
Deposit
Deposit typeEvaporite
Deposit sizeL
WorkingsUnderground
Orebody formCIRCULAR: TABULAR
Ore controlChemical Precipitation From Waters Of 15,000 Sq. Mi. Lake Gosiute During 1 Million Yr. Period Of Aridity And Restricted Circulation.
Materials
Ore mineralsTrona, Halite
GangueCalcite, Dolomite, Gaylussite, Nahcolite
Other materialsOil Shale
Geology
Host rockEvaporite · Green River, Wilkins Peak Member: Trona And Evaporite Bearing Strata
StructureRock Springs Uplift, East Of Trona Area, Stratigraphic High During Much Of Green River Fm. Depositional Period. It Created A Barrier Restricting Water Circulation And Aiding Evaporite Precipitation., Basin And Range Province; Green River Basin; East Of Overthrust Belt, South Of Wind River Mts.
AlterationTrona May Be In Part A Diagenetic Product Of Reaction Between Evaporite Minerals And Na-Rich Water From The Weathering Of Andesitic Tuffs Of Green River Formation. Geochemical Studies (Parker, Et Al, 1971) Have Shown That The Green River Was Probably A Source Of Na-Rich Water. Solution Activity And Reorganization Of Material Is Evident Including Enlarged Grainsize And Secondary Redeposition Of Trona (Parker, Et Al, 1971).
Economic & production
Development statusProducer
First production1962
Discovery year1938
Identification
Deposit ID10107384
MRDS IDW031827
Alternate namesGreen River Stauffer Mine, Stauffer Trona, Rhone Poulenc, Big Island Mine and Plant, Big Island Plant, Green River Trona DistrictStaufferBig Island Mine
RegionNA
Data scoreB
Coordinates41.71778, -109.69194
References
USBM MINERALS YEARBOOK 1978-79.PARKER, R.B.,1971, CONTRIBUTIONS TO GEOLOGY, TRONA ISSUE, UNIV. OF WYOMING, V. 10, N. 1.Mining Magazine, January 1989, p. 45.Bradley, W.H., and Eugster, H.P., 1969, Geochemistry and paleolimnology of the trona deposits and associated authigenic minerals of the Green River Formation of Wyoming: U.S. Geological Survey Professional Paper 496B, 71 p.CAMERON ENGINEERS,WYO MINERAL IND REVIEW & FORECAST,1969. [from deleted MAS record 0560370025].OCI Chemical Corp. website [http://www.ocichemical.com/oci/index.asp] last accessed 6/7/10.Incomplete record 10279285 (0560370522) Stauffer Trona by South Dakota School of Mines and Technology WDW 23-nov-1983, USBM [sic] refreences WYO GEOL SURV OPEN FILES. Record deleted.