+ Site Statistics
References:
54,258,434
Abstracts:
29,560,870
PMIDs:
28,072,757
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Main body of Wasatch Formation near La Barge, Wyoming



Main body of Wasatch Formation near La Barge, Wyoming



Bulletin of the American Association of Petroleum Geologists 46(12): 2161-2173



Three distinct rock-stratigraphic units in the main body of the Wasatch Formation, below the lowest tongue of the Green River Formation, have been recognized and mapped near La Barge, Wyoming. These strata were formerly assigned to the Almy and Knight formations, which are not used here for rock in the Green River Basin. The basal unit, the Chappo Member, is unconformably overlain by the La Barge Member. The La Barge Member grades into and intertongues westward with an unnamed conglomerate member parts of which are also stratigraphically equivalent to higher parts of the Wasatch Formation. The Chappo Member rests directly on Paleozoic and Mesozoic rocks at all exposures examined along the margin of the basin. Vertebrates and mollusks from the Chappo Member are of latest Paleocene (Clarkfork) and earliest Eocene (Graybull) age. The La Barge Member of the Wasatch Formation directly underlies the Fontenelle Tongue of the Green River Formation and is separated from the Chappo Member below by an angular unconformity. Both members are similar in composition but they are separable locally by minor lithologic differences, as well as by the unconformity and structural attitudes. The La Barge Member is of Lysite(?) and Lost Cabin or middle(?) and late early Eocene age. The conglomerate member of the Wasatch Formation, which includes diamictite, sandstone, and mudstone, as well as conglomerate, is present only along the periphery of the Green River basin. It is laterally equivalent to the La Barge Member and to higher stratigraphic units. The conglomerate member is mainly late early Eocene (Lost Cabin), although parts may be older and younger. One inference drawn from these relations is that deformation, resulting in faulting and hydrocarbon migration, occurred in the La Barge, Hogsback, and Tip Top fields as late as early Eocene time.

Please choose payment method:






(PDF emailed within 1 workday: $29.90)

Accession: 019361956

Download citation: RISBibTeXText


Related references

Rodents from a catastrophic assemblage in the early Eocene main body of the Wasatch Formation, Washakie Basin, Wyoming. Journal of Vertebrate Paleontology 24(3, Suppl, 2004

Origin of the Wasatch Formation, Cumberland Gap area, Wyoming. Contributions to Geology 2(2): 151-158, 1963

A new omomyid primate from the Wasatch formation of southern Wyoming. Folia Primatologica; International Journal of Primatology 30(1): 1-29, 1978

Physical properties evaluation of the Wasatch Formation near Sheridan, Wyoming. U S, 1983

Paleoenvironments and age of the wasatch formation eocene powder river basin wyoming usa. Palaios 2(4): 368-376, 1987

Petroleum and natural gas in the non-marine Wasatch Formation of northwest Colorado and southwest Wyoming. Bulletin of the American Association of Petroleum Geologists 26(5): 900, 1942

Occurrence and paleoecology of Marsilea from the Eocene Wasatch Formation, Johnson County, Wyoming. Palaios 16(6): 608-613, 2001

Non-mammalian paleontology of the Wasatch Formation in the northern Green River basin, Wyoming. Abstracts with Programs - Geological Society of America 29(6): 104-105, 1997

Diamictite facies of the Wasatch Formation in the Fossil Basin, southwestern Wyoming, Article 62. U S, 1961

Effects on the calcite fabric (Madison Formation) of the impingement of the Darby-Hogsback thrust sheet and La Barge Platform, Snider Basin area, Wyoming. Guidebook - Wyoming Geological Association 38: 101-108, 1987

Origin of variegated redbeds in the Cathedral Bluffs tongue of the Wasatch Formation (Eocene), Wyoming. Journal of Sedimentary Petrology 47(3): 1201-1219, 1977

Thick coal beds in Wasatch Formation, western Powder River basin, Wyoming. AAPG Bulletin: , New concepts of exploration in Rockies; AAPG-SEPM meeting, Pages 1395. 1976., 1976

Borings in early Eocene turtle shell from the Wasatch Formation, South Pass, Wyoming. Journal of Paleontology 89(05): 802-820, 2015

Evolution of fluvial styles in the Eocene Wasatch Formation, Powder River basin, Wyoming. Special Publication - Society of Economic Paleontologists and Mineralogists 39: 304-310, 1987

Stratigraphy and vertebrate paleontology of the Wasatch Formation, Fossil Butte National Monument, Wyoming. Journal of Vertebrate Paleontology 17(3 SUPPL ): 29A, 1997