Abstract
The early evolution of ancient Lake Uinta has been the focus of significant study due to the enormous hydrocarbon reserves in the Uinta Basin’s lower to middle Green River Formation. In contrast, the upper Green River Formation, which includes strata recording the lake’s highest level (Mahogany zone), as well as three previously poorly delineated hypersaline phases, is less understood but still important for developing a complete lacustrine system evolutionary model. Detailed descriptions and mineralogy from several cores, as well as examination of geophysical logs from hundreds of oil and gas wells, were used to help delineate these three hypersaline lake phases and better define the events related to the infilling of Lake Uinta. Lake Uinta’s first hypersaline phase, recorded in the Uinta Basin, occurred synchronously with the upper R-6 and Mahogany zone deposition. Evaporite minerals, mostly nahcolite nodules and small shortite crystals, were deposited in the basin’s paleo-depocenter in central Uintah County. The second hypersaline phase is represented by a nearly basin-wide small-evaporite-crystal facies (both nahcolite and shortite), as well as a large-evaporite-nodule facies (nahcolite), also centered on the basin’s eastern paleo-depocenter in central Uintah County. Near the end of the second hypersaline phase, sediments originating from the southeast and north began to infill the lake, pushing the paleo-depocenter to the west. The third hypersaline phase is represented by a thick sequence of lacustrine sediments with disseminated evaporite minerals (nahcolite, shortite, and other more exotic sodium evaporite minerals) and bedded salts (halite and trona) centered in north-central Duchesne County.
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References
American Society for Testing and Materials (1980) Standard test method for oil from oil shale (resource evaluation by the USBM Fischer assay procedure): ASTM Designation D 3904-80, 1980.In: Annual Book of ASTM Standards, vol 25. pp 513–525
Birdwell JE, Vanden Berg MD, Johnson RC, Mercier TJ, Boehlke AR, Brownfield ME (2016) Geological, geochemical, and reservoir characterization of the Uteland Butte member of the Green River Formation, Uinta Basin, Utah. In: Dolan MP, Higley DK, Lillis PG (eds) Hydrocarbon source rocks in unconventional plays. Rocky Mountain Association of Geologists, Rocky Mountain Region, pp 352–378
Bradley WH (1931) Origin and microfossils of the oil shale of the Green River Formation of Colorado and Utah. US Geological Survey Professional Paper 168
Bradley WH, Eugster HP (1969) Geochemistry and paleolimnology of the trona deposits and associated authigenic minerals of the Green River Formation of Wyoming. US Geological Survey Professional Paper 496-B
Brownfield ME, Mercier TJ, Johnson RC, Self JG (2010) Nahcolite resources in the Green River Formation, Piceance Basin, Colorado. In: Johnson RC, Mercier TJ, Brownfield ME, Pantea MP, Self JG (eds) Oil shale and Nahcolite resources of the Piceance Basin, Colorado. US Geological Survey Digital Data Series DDS–69–Y
Brownfield ME, Johnson RC, Dyni JD (2010) Sodium carbonate resources of the Eocene Green River Formation, Uinta Basin, Utah and Colorado. In: Johnson RC, Mercier TJ, Brownfield ME, Self JG (eds) Oil shale resources of the Uinta Basin, Utah and Colorado. US Geological Survey Digital Data Series DDS–69–BB
Carroll AR, Bohacs KM (1999) Stratigraphic classification of ancient lakes: balancing tectonic and climatic controls. Geology 27:99–102
Cashion WB (1967) Stratigraphic relations and oil shale of the Green River Formation in the eastern Uinta Basin. In: Seal OG (ed) Guidebook to the geology of the Uinta Basin: intermountain association of petroleum geologists, 8th annual field conference, pp 131–135
Chetel LM, Carroll AR (2010) Terminal infill of Eocene Lake Gosiute, Wyoming, USA. J Sediment Res 80:492–514
Cook EW (1974) Green River shale-oil yields: correlation with elemental analyses. Fuel 53(1):16–20
Culbertson WC (1966) Trona in the wilkins peak member of the Green River Formation, southwest Wyoming. In: Geological Research 1966, US Geological Survey Professional Paper 550-B, pp 159–164
Dana GF, Smith JW (1976) Nature of black trona water occurrence, northern Green River Basin. Wyo Geol Assoc Earth Sci Bull 9:9–15
Dane CH (1954) Stratigraphic and facies relationships of the upper part of the Green River Formation in Duchesne, Uintah, and Wasatch Counties, Utah. Am Asso Petrol Geol Bull 38:405–425
Dane CH (1955) Stratigraphic and facies relationships of the upper part of the Green River Formation and the lower Part of the Uinta Formation in Duchesne, Uintah, and Wasatch Counties, Utah. US Geological Survey Chart OC-52
Dean WE, Anders DE (1991) Effects of source, depositional environment, and diagenesis on characteristics of organic matter in oil shale from the Green River Formation, Wyoming, Utah, and Colorado. In: Tuttle ML (ed) Geochemical, biogeochemical, and sedimentological studies of the Green River Formation, Wyoming, Utah, and Colorado. US Geological Survey Bulletin 1973-A-G: F1–F16
Dyni JR (1976) Trioctahedral smectite in the Green River Formation, Duchesne County, Utah. US Geological Survey Professional Paper 967
Dyni JR (1981) Geology of the nahcolite deposits and associated oil shales of the Green River Formation in the Piceance Creek Basin, Colorado. University of Colorado, Ph.D. dissertation
Dyni JR (1996) Sodium carbonate resources of the Green River Formation. US Geological Survey Open-File Report 96-729
Dyni JR, Milton C, Cashion WB Jr (1985) The saline facies of the upper part of the Green River Formation near Duchesne, Utah. In: Picard MD (ed) Geology and energy resources, Uinta Basin, Utah, vol 12. Utah Geological Association Publication, Salt Lake City, pp 51–60
Dyni JR, Anders DE, Rex Jr. RC (1990) Comparison of hydroretorting, Fischer assay, and Rock-Eval analyses of some world oil shales. In: Proceedings of the 1989 eastern oil shale symposium: University of Kentucky, Institute for Mining and Mineral Research, pp 270–286
Johnson RC (1985) Early Cenozoic history of the Uinta and Piceance Creek basins, Utah and Colorado, with special reference to the development of Eocene Lake Uinta. In: Flores RM, Kaplan SS (eds) Cenozoic Paleogeography of the West-Central United States, Rocky Mountain Paleography Symposium 3. Society of Economic Paleontologists and Mineralogists, The Rocky Mountain Section, pp 247–276
Johnson RC, Brownfield ME (2013) Nahcolite and halite deposition through time during the saline mineral phase of Eocene Lake Uinta, Piceance Basin, Western Colorado. US Geological Survey Open-File Report 2013–1114
Johnson RC, Brownfield ME (2015) Development, evolution, and destruction of the saline mineral area of Eocene Lake Uinta, Piceance Basin, western Colorado. US Geological Survey Scientific Investigations Report 2013–5176
Johnson RC, Mercier TJ, Brownfield ME, Self JG (2010) Oil shale resources of the Uinta Basin, Utah and Colorado. US Geological Survey Digital Data Series DDS–69–BB, 7 chapters, pages variable
Milton C, Axelrod JM, Grimaldi FS (1954a) New minerals reedmergnerite (Na2O·B3O3·6SiO2) and eitelite (Na2O·MgO·CO2) associated with leucosphenite, shortite, searesite, and crocidolite in the Green River Formation, Utah (abs). Geol Soc Am Bull 65:1286–1287
Milton C, Axelrod JM, Sherwiid AM (1954b) New occurrence of leucosphenite, in oil shale from Utah (abs). Am Mineral 39:337
Ray RG, Kent BH, Dane CH (1956) Stratigraphy and photograph-geology of the southwestern part of Uinta Basin, Duchesne and Uintah Counties, Utah. US Geological Survey Oil and Gas Inventory Map OM 171
Smith ME, Carroll AR, Singer BS (2008) Synoptic reconstruction of a major ancient lake system: eocene Green River Formation, western United States. Geol Soc Am Bull 120:54–84
Smith ME, Chamberlain KR, Singer BS, Carroll AR (2010) Eocene clocks agree: coeval 40Ar/39Ar, U-Pb, and astronomical ages from the Green River Formation. Geology 38:527–530
Stanfield KE, Frost IC (1949) Method of assaying oil shale by a modified Fischer retort, US Bureau of Mines Report of Investigations 4477
Surdam RC, Stanley KO (1979) Lacustrine sedimentation during the culminating phase of Eocene Lake Gosiute, Wyoming (Green River Formation). Geol Soc Am Bull 90:93–110
Surdam RC, Stanley KO (1980) Effects of changes in drainage-basin boundaries on sedimentation in Eocene Lakes Gosiute and Uinta of Wyoming, Utah, and Colorado. Geology 8:135–139
Tänavsuu-Milkeviciene K, Sarg FJ (2012) Evolution of an organic-rich lake basin—stratigraphy, climate and tectonics: piceance Creek basin, Eocene Green River Formation. Sedimentology 59:1735–1768
Toms LC (2014) Spatial and temporal variations in lacustrine depositional controls from the middle to upper Green River Formation, central and western Uinta Basin, Utah. Salt Lake City, University of Utah, M.S. thesis
Vanden Berg MD, Dyni JR, Tabet DE (2006) Utah oil shale database. Utah Geological Survey Open-File Report 469
Vanden Berg MD, Lehle DR, Carney SM, Morgan CD (2013) Geological characterization of the Birds Nest aquifer, Uinta Basin, Utah—assessment of the aquifer’s potential as a saline water disposal zone. Utah Geological Survey Special Study 147
Wiig SV, Grundy WD, Dyni JR (1995) Trona resources in the Green River Basin, southwest Wyoming. US Geological Survey Open-File Report 95-476
Acknowledgements
We would like to thank Total SA and the Utah Geological Survey for providing funding for the project. We would also like to thank Rebekah Stimpson and Stephanie Carney, Utah Geological Survey, for help with analyzing logs and drafting maps and figures. We are also grateful to the helpful reviews from David Tabet and Mark Gwynn, also of the Utah Geological Survey, as well as two anonymous reviews and a review from the journal’s assistant editor.
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Vanden Berg, M.D., Birgenheier, L.P. An examination of the hypersaline phases of Eocene Lake Uinta, upper Green River Formation, Uinta Basin, Utah. J Paleolimnol 58, 353–371 (2017). https://doi.org/10.1007/s10933-017-9983-x
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DOI: https://doi.org/10.1007/s10933-017-9983-x