GEOLEX

Summary of Citation: Green River

Publication:
Hayden, F.V., 1869, Preliminary field report [third annual] of
   Colorado and New Mexico: U.S. Geological Survey, 155 p.

Usage in Publication:
Green River shales*

Modifications:	Geologic Province:	Dominant Lithology:
Named	Greater Green River basin	Shale

Summary:
Probably named for exposures along Green River in Sweetwater Co., WY in the Greater Green River basin. Starts east of Rock Spring Station. Composed of thinly laminated, chalky shales of purely fresh water origin. Layers are nearly horizontal and present a banded appearance. Has extensive flora and fauna (numerous insects and fish). Assigned a middle Tertiary age.

Summary of Citation: Green River

Publication:
Schultz, A.R., 1920, Oil possibilities in and around Baxter
   basin, in the Rock Springs uplift, Sweetwater County, Wyoming:
   U.S. Geological Survey Bulletin, 702, 107 p.

Usage in Publication:
Green River formation*

Modifications:	Geologic Province:	Dominant Lithology:
Revised	Greater Green River basin

Summary:
Crops out along the sides of Rock Springs dome toward center of Green River basin, Sweetwater and Carbon Cos, WY in the Greater Green River basin. Extends south into Moffat Co, CO, also in the Greater Green River basin. Characterized by low dips. Four units recognized as part of Green. Two of these were previously assigned to the Wasatch formation. The four are equivalent to the Green River formation on the west side of the dome. Divided into (ascending order): the Tipton shale member (new, at base), Cathedral Bluffs red beds member (new), Laney shale member (new), and the plant beds and Tower sandstone of Powell. Powell's unit not studied, but author comments that it was not clearly defined. Unconformably underlies the Bridger formation. Unconformities separate the Cathedral Bluffs from the Laney, and the Laney from the plant beds and Tower. Ranges from 100 to 3,275 ft thick. Geologic map. Stratigraphic chart. Measured sections. Of Eocene age.

Summary of Citation: Green River

Publication:
Sears, J.D. and Bradley, W.H., 1924, Relations of the Wasatch
   and Green River formations in northwestern Colorado and
   southern Wyoming; with notes on oil shales in the Green River
   formation, IN Shorter contributions to general geology,
   1923-24: U.S. Geological Survey Professional Paper, 132-F,
   p. F93-F107

Usage in Publication:
Green River formation*

Modifications:	Geologic Province:	Dominant Lithology:
Revised	Greater Green River basin

Summary:
Stratigraphic rank term of Tipton shale member of the Eocene Green River formation in Sweetwater Co, WY and adjoining Moffat Co, CO, Greater Green River basin, changed to Tipton tongue of Green River. The overlying Cathedral Bluffs which was formerly assigned to the Green River is reassigned as Cathedral Bluffs tongue of Wasatch formation. Laney shale member of Green River overlies and intertongues with Cathedral Bluffs. The Tipton is underlain by the main body of the Wasatch. The Laney is overlain by the Bridger. Cross section. Geologic map.

Summary of Citation: Green River

Publication:
Bradley, W.H., 1926, Shore phases of the Green River formation
   in northern Sweetwater County, Wyoming, IN Shorter contributions
   to general geology, 1925: U.S. Geological Survey Professional
   Paper, 140-D, p. D121-D131

Usage in Publication:
Green River formation*

Modifications:	Geologic Province:	Dominant Lithology:
Revised	Greater Green River basin

Summary:
Divided into: Tipton tongue, Laney shale member, and Morrow Creek member (new) in northern Sweetwater Co, WY in the Greater Green River basin. To south in Sweetwater Co, a sandstone that occurs between the Laney and the Morrow Creek is assigned to the Tower sandstone lentil (rank change from Tower sandstone). Measured sections; geologic maps; cross section. Of Eocene age.

Summary of Citation: Green River

Publication:
Bradley, W.H., 1931, Origin and microfossils of the oil shale
   of the Green River formation of Colorado and Utah: U.S.
   Geological Survey Professional Paper, 168, 58 p.

Usage in Publication:
Green River formation*

Modifications:	Geologic Province:	Dominant Lithology:
Revised Overview	Uinta basin Piceance basin

Summary:
Revised east of Bitter Creek, Ts12 and 13S, Rs22 and 23E, Uintah Co, UT in the Uinta basin; divisible into 4 newly named members--the Douglas Creek, Garden Gulch, Parachute Creek, and Evacuation Creek members. These names are used into Rio Blanco and Garfield Cos, CO in the Piceance basin. West of Bitter Creek into Duchesne Co, UT, is divisible into a basal member or a basal lacustrine phase separable into two parts by a tongue of the Wasatch, a delta facies, or oil-shale horizon, and a barren or saline or shaly facies. To north of White River in Moffat Co, CO in the Greater Green River basin, the Green River is represented by a shore and delta facies. This facies is equivalent to most of the formation south of the White River. The delta and shore facies is about 1,000 to 1,175 ft thick. Nearly 50 percent of this northern shore facies is a uniform gray-buff, soft, flaky, white, buff, gray to brown, fine or medium-grained sandstone with varicolored chert pebbles. Contains ostracods, gastropods, plant stem and leaf, crocodile, turtle, garpike and other fish bone and teeth fossils. Southward the shore facies grades into shore and delta facies and contains shale, oolite, marlstone, finer grained sandstone, paper-shale, and thin oil-shale beds. Is younger than Wasatch formation and older than Bridger formation. Of middle Eocene age. Geologic map. Cross section. Columnar sections.

Summary of Citation: Green River

Publication:
Donavan, J.H., 1950, Intertonguing of Green River and Wasatch
   formations in part of Sublette and Lincoln Counties, Wyoming:
   Wyoming Geological Association Field Conference Guidebook,
   no. 5, p. 59-67

Usage in Publication:
Green River formation

Modifications:	Geologic Province:	Dominant Lithology:
Revised	Greater Green River basin

Summary:
Divided in south-central Sublette Co, WY in the Greater Green River basin into the newly named Fontenelle member, Laney member, and the Morrow Creek member (which cannot be separated from the "lower" Bridger). The Fontenelle is separated from the Laney member by the newly named New Fork tongue of the Wasatch in the vicinity of the Green River-New Fork River junction. East of the junction, the New Fork pinches out and Laney rests on the Fontenelle. Geologic map; cross section. Of middle Eocene age.

Summary of Citation: Green River

Publication:
Dane, C.H., 1954, Stratigraphic and facies relationships of
   upper part of Green River formation and lower part of Uinta
   formation in Duchesne, Uintah, Wasatch Counties, Utah: American
   Association of Petroleum Geologists Bulletin, v. 38, no. 2,
   p. 405-425

Usage in Publication:
Green River formation*

Modifications:	Geologic Province:	Dominant Lithology:
Revised	Uinta basin Piceance basin

Summary:
Revised in that names Parachute Creek and Evacuation Creek members applied across area from Wasatch Co, UT east to Duchesne and Uintah Cos, UT in the Uinta basin, and into the Piceance basin of CO. The rocks west of Watson, in Uintah Co, were assigned to informally named parts of the Green River formation in earlier reports. Horse Bench sandstone bed thought to be recognizable across area in Evacuation Creek member about 175 ft above its base. Identification of Horse Bench in western sections is somewhat uncertain because the sandstone beds are discontinuous. This bed was formerly recognized as part of an unnamed upper part of the Green River. Cross section. Older parts of Green River not discussed. Conformably underlies Uinta formation. Of Eocene age.

Summary of Citation: Green River

Publication:
Pipiringos, G.N., 1955, Tertiary rocks in the central part of
   the Great Divide basin, Sweetwater County, Wyoming, IN Camp,
   R.J., chairman, Green River basin: Wyoming Geological
   Association Field Conference Guidebook, no. 10, p. 100-104

Usage in Publication:
Green River formation*

Modifications:	Geologic Province:	Dominant Lithology:
Revised	Greater Green River basin

Summary:
Revised in Great Divide basin, Sweetwater Co, WY in Greater Green River basin, in that Green River formation is divided into (ascending order): the lower Eocene Luman (new) and Tipton tongues, and the middle Eocene Laney shale member and its northern equivalent, the Morrow Creek member. The Green River is intertongued with an arkosic sandstone on Cyclone Rim named Battle Spring formation and with named units of the Wasatch formation. The Battle Spring is a coarse-grained to pebbly arkosic sandstone that intertongues with and is equivalent to both the Green River and Wasatch formations in this area. The Luman tongue overlies the newly named Red Desert tongue of the Wasatch and underlies the newly named Niland tongue of the Wasatch. The Tipton tongue overlies the Niland and underlies the Cathedral Bluffs tongue of the Wasatch. The Laney and Morrow Creek overlie the Cathedral Bluffs tongue of the Wasatch and underlie the Bridge formation. Cross section.

Summary of Citation: Green River

Publication:
Bradley, W.H., 1959, Revision of stratigraphic nomenclature of
   Green River formation of Wyoming: American Association of
   Petroleum Geologists Bulletin, v. 43, no. 5, p. 1072-1075

Usage in Publication:
Green River formation*

Modifications:	Geologic Province:	Dominant Lithology:
Revised	Greater Green River basin

Summary:
Sequence in Green River formation in the Greater Green River basin of southwest WY formerly thought to be (ascending): Tipton tongue (or Tipton shale member), Laney shale member, and Morrow Creek member. This sequence revised to include (ascending): Tipton tongue and its equivalent Fontenelle tongue, the newly named Wilkins Peak member, and the Laney shale member. The name Wilkins Peak replaces local misapplication of name Laney to beds older than Laney in Green River. Term Morrow Creek abandoned because it was applied to rocks that belong to Laney. Term Tower sandstone changed to Tower sandstone lentil of Laney. Tower is not a coarse-grained sand; Tower is a uniformly fine grained crystal tuff. Formation assigned to the early and middle Eocene.

Summary of Citation: Green River

Publication:
Oriel, S.S., 1961, Tongues of the Wasatch and Green River
   formations, Fort Hill area, Wyoming, IN Geological Survey
   research 1961; short papers in the geologic and hydrologic
   sciences; Articles 1-146: U.S. Geological Survey Professional
   Paper, 424-B, p. B151-B152

Usage in Publication:
Green River formation*

Modifications:	Geologic Province:	Dominant Lithology:
Revised	Greater Green River basin

Summary:
Divided into the Fontenelle tongue (restricted) at the base, the middle and upper tongues in the Fort Hill area, Lincoln Co, WY in the Greater Green River basin. The Fontenelle is restricted stratigraphically to the basal 50-60 ft of the original (Donovan, 1950) unit. The overlying strata of the original Fontenelle which are about 250 ft are reassigned to the New Fork tongue of the Green River formation. Of early Eocene age.

Summary of Citation: Green River

Publication:
Donnell, J.R., 1961, Tertiary geology and oil-shale resources
   of the Piceance Creek basin between the Colorado and White
   Rivers, IN Contributions to economic geology, 1958: U.S.
   Geological Survey Bulletin, 1082-L, p. L835-L891, Also, U.S.
   Geological Survey Bulletin 1042-H, p. H255-H271, and U.S.
   Geological Survey Oil and Gas Investigations Map OM-134,
   scale 1:62,500.

Usage in Publication:
Green River formation*

Modifications:	Geologic Province:	Dominant Lithology:
Revised	Piceance basin

Summary:
Is the major mapped unit (geologic map) of the report area, Garfield and Rio Blanco Cos, CO in the Piceance basin. Composed of dark shale and magnesian limestone that weather to gray, brown and white, a contrast in color to the underlying brightly colored Wasatch formation. Has a maximum thickness of 3,000 ft in northeast part of area. Divided into (ascending): Douglas Creek, Garden Gulch, Parachute Creek, and Evacuation Creek members in the western and southwestern parts of the basin from Fletcher Gulch on the northwest side to Parachute Creek on the southeast side. Between Parachute Creek to Piceance Creek on the east side of the basin, the lower part of the Green River equivalent to the Douglas Creek, Garden Gulch, and part of the Parachute Creek members is assigned to the newly named Anvil Points member. Cross sections. Eocene age.

Summary of Citation: Green River

Publication:
Culbertson, W.C., 1962, Laney Shale Member and Tower Sandstone
   Lentil of the Green River Formation, Green River area, Wyoming,
   IN Geological Survey research 1962; short papers in geology,
   hydrology, and topography; Articles 60-119: U.S. Geological
   Survey Professional Paper, 450-C, p. C54-C57, Also, GeoScience
   Abstracts, v. 4, no. 12, pt. 1, Dec. 1962 (summary).

Usage in Publication:
Green River Formation*

Modifications:	Geologic Province:	Dominant Lithology:
Revised	Greater Green River basin

Summary:
Name Tower Sandstone Lentil of Green River Formation has been applied to resistant lenticular sandstone and siltstone bodies that occur at many different horizons, mostly lower 400 ft, in the Laney Shale Member of Green River Formation of Eocene age, Sweetwater Co, WY in Greater Green River basin. Name Tower therefore abandoned.

Summary of Citation: Green River

Publication:
Oriel, S.S., 1962, Main body of the Wasatch Formation near La
   Barge, Wyoming: American Association of Petroleum Geologists
   Bulletin, v. 46, no. 12, p. 2161-2173

Usage in Publication:
Green River Formation*

Modifications:	Geologic Province:	Dominant Lithology:
Revised	Greater Green River basin

Summary:
Eocene Green River Formation intertongues westward with main body and conglomerate member of Wasatch Formation. The Fontenelle Tongue, basal unit of Green River, intertongues with La Barge Member (new name) of Wasatch in the Greater Green River basin of southwest WY.

Summary of Citation: Green River

Publication:
Love, J.D., 1964, Uraniferous phosphatic lake beds of Eocene
   age in Intermontane basins of Wyoming and Utah, IN Shorter
   contributions to general geology, 1963: U.S. Geological Survey
   Professional Paper, 474-E, p. E1-E66

Usage in Publication:
Green River Formation*

Modifications:	Geologic Province:	Dominant Lithology:
Revised	Greater Green River basin

Summary:
Green River Formation revised in that the Firehole Bed named. Firehole replaces term "first tuff" of Wilkins Peak of Culbertson (1961). Green River divided in report area, Sweetwater Co, WY, Greater Green River basin, into (ascending): Laman Tongue, Tipton Shale, Wilkins Peak, and Laney Shale Members. The formation overlies Wasatch Formation and intertongues with Niland Tongue of Wasatch. Formation underlies Bridger Formation. Eocene age. Stratigraphic table; geologic map; measured section. Eocene age.

Summary of Citation: Green River

Publication:
Ritzma, H.R., 1965, Piceance Creek Sandstone, basal Green River
   sandstone tongue, northeast Piceance Creek basin, Colorado:
   The Mountain Geologist, v. 2, no. 3, p. 103-107

Usage in Publication:
Green River Formation

Modifications:	Geologic Province:	Dominant Lithology:
Revised	Piceance basin Greater Green River basin

Summary:
Revised in that sandstone beds at base, in east part of Piceance basin formerly assigned to Douglas Creek Member of Green River Formation, renamed Piceance Creek Sandstone Tongue of Anvil Points Member of Green River. Reason for nomenclature change attributed to a change in source area. The Douglas Creek was derived from the west and southwest. The Anvil Points and Piceance Creek were derived from the east. Nomenclature chart. Areal extent map of Piceance Creek Member. Eocene age.

Summary of Citation: Green River

Publication:
Roehler, H.W., 1965, Early Tertiary depositional environments
   in the Rock Springs uplift area, IN De Voto, R.H., and Bitter,
   R.K., eds., Sedimentation of Late Cretaceous and Tertiary
   outcrops, Rock Springs uplift: Wyoming Geological Association
   Field Conference Guidebook, no. 19, p. 140-150

Usage in Publication:
Green River Formation

Modifications:	Geologic Province:	Dominant Lithology:
Revised	Greater Green River basin

Summary:
Revised in that Ramsey Ranch assigned as lowermost member of Green River. Study area is in area of Rock Springs uplift, Greater Green River basin, WY. Green River consists of (ascending): Ramsey Ranch, Luman, Tipton Shale, Wilkins Peak, and Laney Shale Members. List of mollusks commonly found in Green River; chart showing previous nomenclature; restored section; map of areal extent of Ramsey Ranch, Luman, and Wilkins Peak. Eocene age.

Summary of Citation: Green River

Publication:
Schneider, M.C., 1967, Early Tertiary continental sediments of
   central and south-central Utah: Brigham Young University
   Geology Studies, v. 14, p. 143-194

Usage in Publication:
Green River Formation

Modifications:	Geologic Province:	Dominant Lithology:
Revised	Wasatch uplift

Summary:
Lower contact revised where unit overlies newly named Cedar Breaks Formation. Underlying rocks in Pavant Mountains of central UT, Sevier Co, [Wasatch uplift] that were previously referred to as Flagstaff Formation (not used) are now assigned to Cedar Breaks.

Summary of Citation: Green River

Publication:
Moussa, M.T., 1969, Green River Formation (Eocene) in the Soldier
   Summit area, Utah: Geological Society of America Bulletin,
   v. 80, no. 9, p. 1737-1748

Usage in Publication:
Green River Formation

Modifications:	Geologic Province:	Dominant Lithology:
Revised	Wasatch uplift

Summary:
Green River Formation is about 5,800 ft thick in the Soldier Summit area of Utah Co, UT on the Wasatch uplift, where it can be divided into (ascending): Middle Fork Tongue (new name), Soldier Summit Member (new name), delta facies, Parachute Creek and Evacuation Creek Members. The Middle Fork (250-280 ft thick) and Soldier Summit (460 ft thick) are separated from each other by the Tabbyune Creek Tongue of the Colton Formation. Middle Fork and Soldier Summit are composed of shale, marlstone, and limestone. The delta facies is mostly gray-green marlstone interbedded with limestone, paper shale, and sandstone 3,250 ft thick. The Parachute Creek is mostly brownish-tan paper shale 630 ft thick. The Evacuation Creek contains brown calcareous shale, green shaly marlstone, limestone, and claystone 970 ft thick. The uppermost of four tuff beds is used as the top of the Evacuation Creek and of the Green River. Overlain by Uinta Formation. Measured sections of new units. Stratigraphic charts. Is a fluviatile unit of Eocene age.

Summary of Citation: Green River

Publication:
Donnell, J.R., 1969, Paleocene and lower Eocene units in the
   southern part of the Piceance Creek basin Colorado, IN
   Contributions to stratigraphy, 1968: U.S. Geological Survey
   Bulletin, 1274-M, p. M1-M18

Usage in Publication:
Green River Formation*

Modifications:	Geologic Province:	Dominant Lithology:
Revised	Piceance basin

Summary:
Overlies Shire Member, a new member of Wasatch Formation in southern Piceance basin. Assigned to the Eocene.

Summary of Citation: Green River

Publication:
Oriel, S.S. and Tracey, J.I., Jr., 1970, Uppermost Cretaceous
   and Tertiary stratigraphy of Fossil basin, southwestern
   Wyoming: U.S. Geological Survey Professional Paper, 635, 53
   p.

Usage in Publication:
Green River Formation*

Modifications:	Geologic Province:	Dominant Lithology:
Revised Overview	Greater Green River basin

Summary:
Is still used in original sense for light-colored laminated calcareous beds between red-hued Wasatch Formation below and green-hued Bridge Formation above. Divided in Fossil basin of Greater Green River basin, Lincoln Co, WY, into Fossil Butte Member (new), the lower member, and Angelo Member (new), the upper member. Intertongues with sandstone and mudstone tongues of Wasatch. Generally overlies main body of Wasatch and underlies Bullpen Member (new) of Wasatch. Abundant well-preserved fossils from both members. Assigned a late early Eocene age. Of lacustrine origin. Measured sections.

Summary of Citation: Green River

Publication:
Roehler, H.W., 1973, Stratigraphy of the Washakie Formation in
   the Washakie basin, Wyoming: U.S. Geological Survey Bulletin,
   1369, p. 1-40

Usage in Publication:
Green River Formation*

Modifications:	Geologic Province:	Dominant Lithology:
Revised	Greater Green River basin

Summary:
Laney Shale Member changed to Laney Member and divided into the newly named LaClede Bed (base), Sand Butte Bed, and Hartt Cabin Bed (top) in the Washakie basin of the Greater Green River basin. Green River Formation represented only by Laney in this report. Laney intertongues with the underlying Cathedral Bluffs Tongue of Wasatch Formation. Hartt Cabin Bed of Laney intertongues with Kinney Rim Member of Washakie Formation on western exposures and unconformably underlies Adobe Town Member of Wasatch in the eastern exposures. Cross section. Correlation chart. Measured sections. E-log diagram of subsurface characteristics. Areal extent maps for each named bed. Is of Eocene age.

Summary of Citation: Green River

Publication:
Cashion, W.B. and Donnell, J.R., 1974, Revision of nomenclature
   of the upper part of the Green River Formation, Piceance
   Creek basin, Colorado, and eastern Uinta basin, Utah, IN
   Contributions to stratigraphy: U.S. Geological Survey Bulletin,
   1394-G, p. G1-G9

Usage in Publication:
Green River Formation*

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits	Uinta basin

Summary:
Parachute Creek Member of Eocene Green River Formation extended from Piceance basin into Uinta basin. Name is applied to rocks formerly assigned to both Parachute Creek and overlying Evacuation Creek Members. Evacuation Creek Member abandoned.

Summary of Citation: Green River

Publication:
Duncan, D.C., Hail, W.J., Jr., O'Sullivan, R.B. and Pipiringos,
   G.N., 1974, Four newly named tongues of Eocene Green River
   Formation, northern Piceance Creek basin, Colorado, IN
   Contributions to stratigraphy: U.S. Geological Survey Bulletin,
   1394-F, p. F1-F13

Usage in Publication:
Green River Formation*

Modifications:	Geologic Province:	Dominant Lithology:
Revised	Piceance basin

Summary:
Four marlstone beds in the northern Piceance Creek basin (of the larger Piceance basin) named as tongues of Eocene Green River; these are (ascending): Yellow Creek, Dry Fork, Thirteenmile Creek, and Black Sulphur Tongues. These tongues intertongue with Uinta Formation and merge laterally within Parachute Creek Member of Green River. They are assigned to the Eocene.

Summary of Citation: Green River

Publication:
O'Sullivan, R.B., 1975, Coughs Creek Tongue; a new tongue of
   the Eocene Green River Formation, Piceance Creek basin,
   Colorado, IN Contributions to stratigraphy: U.S. Geological
   Survey Bulletin, 1395-G, p. G1-G7

Usage in Publication:
Green River Formation*

Modifications:	Geologic Province:	Dominant Lithology:
Revised	Piceance basin

Summary:
Some of the marlstone beds in the upper part of the Green River Formation are formally named. A distinctive stratigraphic marker in the upper part of the Green River Formation in the east-central and southern part of the Piceance basin in northwest CO is named Coughs Creek Tongue. Coughs Creek is overlain and underlain by Uinta Formation. Coughs Creek probably joined the main body of the Green River in the southern part of the Piceance basin but has since been eroded from that part of the basin. The newly named tongue is separated from the Parachute Creek Member of Green River by about 400 ft of the Uinta Formation. Cross section. Eocene age.

Summary of Citation: Green River

Publication:
Fouch, T.D., 1976, Revision of the lower part of the Tertiary
   system in the central and western Uinta basin, Utah, IN
   Contributions to stratigraphy: U.S. Geological Survey Bulletin,
   1405-C, p. C1-C7

Usage in Publication:
Green River Formation*

Modifications:	Geologic Province:	Dominant Lithology:
Revised Age modified locally	Uinta basin

Summary:
Basal contact revised in Uinta basin to include Flagstaff Member (reduced in stratigraphic rank). Is continuous with Flagstaff central part of basin. However, Colton Formation separates Flagstaff from main part of Green River on north and south sides of basin. Is therefore of Paleocene and Eocene age.

Summary of Citation: Green River

Publication:
Hail, W.J., Jr., 1977, Stewart Gulch Tongue, a new tongue of
   the Eocene Green River Formation, Piceance Creek basin,
   Colorado, IN Contributions to stratigraphy: U.S. Geological
   Survey Bulletin, 1422-E, p. E1-E8

Usage in Publication:
Green River Formation*

Modifications:	Geologic Province:	Dominant Lithology:
Revised	Piceance basin

Summary:
Includes the newly named Stewart Gulch Tongue, one of six marlstones in the upper part of the Green River that intertongues with Uinta Formation in the central and northern part of the Piceance basin. Assigned to the Eocene.

Summary of Citation: Green River

Publication:
Sullivan, Raymond, 1980, A stratigraphic evaluation of the Eocene
   rocks of southwestern Wyoming: Wyoming Geological Survey
   Report of Investigations, no. 20, 50 p.

Usage in Publication:
Green River Formation

Modifications:	Geologic Province:	Dominant Lithology:
Revised Overview	Greater Green River basin

Summary:
Divided into Tipton Shale (base), Wilkins Peak, and Laney Members. Laney separable on west side of Greater Green River basin into newly named Craven Creek (base) and Cow Hollow (top) Beds by the upper tongue of Bridger Formation which is named Whiskey Butte Bed. Author recommends that name Tipton replace Fontenelle Tongue of Green River and that Fontenelle be "discarded." Of early and middle Eocene age.

Summary of Citation: Green River

Publication:
Johnson, R.B., 1984, New names for units in the lower part of
   the Green River Formation, Piceance Creek basin, Colorado,
   IN Contributions to stratigraphy: U.S. Geological Survey
   Bulletin, 1529-I, p. I1-I20, (incl. geologic map, scale
   1:600,000)

Usage in Publication:
Green River Formation*

Modifications:	Geologic Province:	Dominant Lithology:
Revised	Piceance basin

Summary:
Three new units assigned to the Eocene Green River--1) Cow Ridge Member, formerly mapped as part of Douglas Creek Member and as part of Wasatch Formation, 2) Kimball Mountain Tuff Bed that is the basal bed of or a bed in the Douglas Creek and Parachute Creek Members, depending on locality, and 3) Long Point Bed that is the basal bed of Garden Gulch, Douglas Creek, and Anvil Points Members.

Summary of Citation: Green River

Publication:
Fouch, T.D., Hanley, J.H., Forrester, R.M., Keighin, C.W.,
   Pitman, J.K. and Nichols, D.J., 1987, Chart showing lithology,
   mineralogy, and paleontology of the nonmarine North Horn
   Formation and Flagstaff Member of the Green River Formation,
   Price Canyon, central Utah; a principal reference section:
   U.S. Geological Survey Miscellaneous Investigations Series
   Map, I-1797-A, 8 p., 1 sheet

Usage in Publication:
Green River Formation*

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits	Uinta basin

Summary:
Flagstaff Member of the Green River Formation identified in Price Canyon (secs 21 and 15, T12S, R9E), Carbon Co., UT in the Uinta basin. Member rank used because Flagstaff is continuous with the Green River Formation in the subsurface.

Summary of Citation: Green River

Publication:
Roehler, H.W., 1991, Revised stratigraphic nomenclature for the
   Wasatch and Green River Formations, IN Geology of the Eocene
   Wasatch, Green River, and Bridger (Washakie) formations,
   greater Green River basin, Wyoming, Utah, and Colorado: U.S.
   Geological Survey Professional Paper, 1506-B, p. B1-B38

Usage in Publication:
Green River Formation*

Modifications:	Geologic Province:	Dominant Lithology:
Revised	Greater Green River basin

Summary:
Farson Sandstone Member of Green River Formation named in the western Greater Green River basin. Rocks assigned to Farson have been included in the Tipton Shale Member of Green River by Bradley and in New Fork Tongue of Wasatch Formation by Culbertson. Term New Fork not used. The Tipton Shale Member of the Green River is divided into the newly named Scheggs Bed at base and the newly named Rife Bed at top. Stratigraphic diagrams. Of early and middle Eocene age; early Eocene perissodactyls found in main body of Wasatch 95 ft below base of Scheggs in sec 25, T24N, R101W; LAMBDOTHERIUM and CYNODONTOMYS found 8 ft below top of Farson in sec 25, T25N, R102W; CORYPHODON, PHENACODUS, HYRACOTHERIUM, HEPTODON, LAMBDOTHERIUM found at type section of Farson; HYRACOTHERIUM found near Cathedral Bluffs Tongue-Wilkins Peak Member contact in sec 24, T12N, R99W.

Summary of Citation: Green River

Publication:
Hail, W.J., Jr., 1992, Geology of the central Roan Plateau,
   northwestern Colorado, IN Evolution of sedimentary basins;
   Uinta and Piceance basins: U.S. Geological Survey Bulletin,
   1787-R, p. R1-R26

Usage in Publication:
Green River Formation*

Modifications:	Geologic Province:	Dominant Lithology:
Overview	Piceance basin	Marlstone

Summary:
Is an Eocene formation in central Roan Plateau area in south-central part of Piceance Creek basin, northwestern CO. [Piceance Creek basin is generally defined as smaller Tertiary oil-shale basin within Piceance basin.] Consists almost entirely of rocks of lacustrine origin, and is divided into four members (ascending): westward-thinning Anvil Points Member, mostly near-shore freshwater lacustrine kerogen-rich fissile shale, and fine-grained sandstone; Garden Gulch Member, freshwater lacustrine gray to brown dolomitic shale and claystone, and lesser fissile clay shale; Douglas Creek Member, near-shore freshwater lacustrine silty dolomitic shale and claystone, clay shale, and lesser siltstone, sandstone, oil shale, and algal limestone; and Parachute Creek Member, mostly dolomitic marlstone, much of which is oil shale, and lesser clay shale, siltstone and sandstone, and several very thin altered tuff beds. Correlation of informal oil-shale units. Demonstrates complex intertongued nature of Green River and Uinta Formations, particularly regarding lithostratigraphic equivalents of parts of Parachute Creek Member. Much of Uinta consists of southward-thinning wedges of clastic rocks that interfinger with northward-thinning marlstone tongues of Green River. Marlstone units include (ascending): Coughs Creek and Stewart Gulch Tongues; marlstone at Barnes Ridge; marker bed at Bull Fork; and marlstones at Jackrabbit Ridge, Sleepy Ridge, Skinner Ridge.

Summary of Citation: Green River

Publication:
Roehler, H.W., 1992, Correlation, composition, areal distribution,
   and thickness of Eocene stratigraphic units, greater Green
   River basin, Wyoming, Utah, and Colorado, IN Geology of the
   Eocene Wasatch, Green River, and Bridger (Washakie) formations,
   greater Green River basin, Wyoming, Utah, and Colorado: U.S.
   Geological Survey Professional Paper, 1506-E, p. E1-E49,
   (incl. geologic map, scale 1:500,000)

Usage in Publication:
Green River Formation*

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits Overview	Greater Green River basin

Summary:
Isopach maps of Luman Tongue, Farson Sandstone Member, Scheggs and Rife Beds of Tipton Shale Member, Wilkins Peak Member, Godiva Rim Member, and LaClede and Sand Butte Beds of Laney Member within Greater Green River basin, WY and CO. Luman reaches maximum thickness of 455 ft in southwest Washakie basin. Farson is 400 ft thick near Farson, WY, Green River basin. Scheggs attains a thickness of 300 ft in southwest Washakie and in western Sand Wash basins. Rife is locally more than 200 ft thick in parts of Green River, Washakie and Great Divide basins. Wilkins Peak is divided into lower, middle, and upper parts; locally thickness of lower part is 200 ft in southern Green River basin and in southwest Washakie basin; middle part, generally restricted to Green River basin and Rock Springs uplift areas, reaches its maximum thickness of 800 ft in area of Uinta Mountain trough; upper part reaches maximum thickness of 100 ft in central and southern Green River basin and in southwest Washakie and west Sand Wash basins. Godiva Rim reaches maximum thickness of 350 ft in southern Sand Wash basin. LaClede has maximum thickness of 800 ft near eastern end of Uinta Mountains. Sand Butte is restricted to flanks of Rock Springs uplift and parts of adjacent basin; thickness ranges from 0-850 ft. Stratigraphic chart; cross sections. Eocene age.

Summary of Citation: Green River

Publication:
Remy, R.R., 1993, Stratigraphy of the Eocene part of the Green
   River Formation in the south-central part of the Uinta basin,
   Utah, IN Evolution of sedimentary basins; Uinta and Piceance
   basins: U.S. Geological Survey Bulletin, 1787-BB, p.
   BB1-BB79

Usage in Publication:
Green River Formation

Modifications:	Geologic Province:	Dominant Lithology:
Overview	Uinta basin

Summary:
Study area within Carbon and Duchesne Cos, UT, Uinta basin. Main body of Green River divided into lower part and upper member; lower part subdivided into (ascending) carbonate marker unit, Sunnyside delta interval, and transitional interval. At Nine Mile Canyon carbonate marker unit, which marks base of Eocene part of Green River, is a 130 m-thick interval representing deposits along fluctuating southern shore of ancient Lake Uinta; Sunnyside delta interval, named for Sunnyside tar sand deposit on Roan Cliffs, is a 375 m-thick sequence representing deposits in large fluvially-dominated delta system along southern shore of Lake Uinta; transitional interval is a 200-m-thick sequence representing marginal-to open-lacustrine deposits; and upper member is a 325 m-thick interval of relatively low energy, open-lacustrine deposits formed when Lake Uinta was at its maximum size. Upper member contains stratigraphic markers including Mahogany oil-shale bed, S2 marker bed, Horse Bench Sandstone Bed, and an upper tuff. Chart 1 compares nomenclature of previous workers. Seventeen measured sections. Figure 5 summarizes published paleontological data and isotopic and zircon fission-track dates, which suggest ages of 54 Ma, 47.5 Ma, and 43 Ma for base of carbonate marker unit, top of transitional interval, and top of upper member, respectively . Thus main body of Green River is late early to late middle Eocene (middle Wasatchian to late Uintan) age.

Summary of Citation: Green River

Publication:
Cashion, W.B., in press, Stratigraphy of the Green River Formation,
   eastern Uinta basin, Utah and Colorado; a summary: Grand
   Junction Geological Society Guidebook, __

Usage in Publication:
Green River Formation*

Modifications:	Geologic Province:	Dominant Lithology:
Revised	Uinta basin

Summary:
In eastern Uinta basin is divided into (ascending) Cow Ridge and Douglas Creek Members, clay-rich sequence, and Parachute Creek Member. Clay-rich sequence is basinward equivalent of part of Douglas Creek (fig. 3). Rocks of clay-rich sequence are brown, thinly laminate (flaky on outcrop), and commonly contain abundant flattened ostracods on bedding planes; contains few carbonate beds and is, in general, less kerogenous than overlying Parachute Creek Member of Green River. Sequence is lithologically similar to Garden Gulch Member of Green River in Piceance Creek basin, but exact temporal relationship has not been determined. No diagnostic fossils or isotopic ages have been obtained from sequence. Near principal depositional axis of Green River in eastern Uinta Basin, underlies Parachute Creek; overlies Douglas Creek Member of Green River. Middle Eocene age is assumed based on stratigraphic relationship of Douglas Creek and clay-rich sequence.