Comparative mineralogy of nearshore and offshore lacustrine lithofacies, Parachute Creek Member of the Green River Formation, Piceance Creek Basin, Colorado, and eastern Uinta Basin, Utah

Journal Article · Sun Oct 01 04:00:00 EDT 1978 · Geol. Soc. Am., Bull.; (United States)

DOI:https://doi.org/10.1130/0016-7606(1978)89<1441:CMONAO>2.0.CO;2· OSTI ID:6723408

Cole, R D ^[1]; Picard, M D

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1. Southern Illinois Univ., Carbondale

A comparative study of the relative distribution of analcime, quartz, K-feldspar, Na-plagioclase, calcite, dolomite, and ankerite shows variable partitioning of these minerals between the marginal-lacustrine and open-lacustrine lithofacies of the Parachute Creek Member of the Green River Formation in the southern and western piceance Creek Basin, Colorado, and the eastern Uinta Basin, Utah. The variations correlate with changes in the depositional environments of ancient Lake Uinta. Four individual, but gradational, environments of deposition are recognized in the Parachute Creek Member: (1) deltaic lacustrine; (2) carbonate flat; (3) proximal open lacustrine; and (4) distal open lacustrine. Rocks from these depositional facies range from sandstone and algal limestone in the first two marginal-lacustrine environments to oil shale, tuff, and saline-mineral beds in the latter two open-lacustrine environments.

• OSTI ID: 6723408
• Journal Information: Geol. Soc. Am., Bull.; (United States), Journal Name: Geol. Soc. Am., Bull.; (United States) Vol. 89:10; ISSN BUGMA
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
040201* -- Oil Shales &amp; Tar Sands-- Site Geology-- (-1989)
COLORADO
DATA
EXPERIMENTAL DATA
GEOLOGIC DEPOSITS
GEOLOGIC STRUCTURES
GREEN RIVER FORMATION
INFORMATION
MINERAL RESOURCES
MINERALOGY
NORTH AMERICA
NUMERICAL DATA
OIL SHALE DEPOSITS
PICEANCE CREEK BASIN
RESOURCES
ROCKY MOUNTAIN REGION
UINTA BASIN
USA
UTAH