Geologic map of the Peach Orchard Flat quadrangle, Carbon County, Wyoming, and descriptions of new stratigraphic units in the Upper Cretaceous Lance Formation and Paleocene Fort Union Formation, eastern Greater Green River Basin, Wyoming-Colorado

2004 ◽  
Author(s):  
J.D. Honey ◽  
R.D. Hettinger
Keyword(s):  
River Basin ◽  
Upper Cretaceous ◽  
Union Formation ◽  
Green River Basin ◽  
Green River ◽  
Fort Union Formation ◽  
Geologic Map ◽  
Peach Orchard

scholarly journals Section A-A'; surface and subsurface correlations of some Upper Cretaceous and Tertiary rocks, Green River basin, Wyoming

1979 ◽  
Author(s):  
B.E. Law ◽  
C.W. Spencer ◽  
Henry W. Roehler
Keyword(s):  
River Basin ◽  
Upper Cretaceous ◽  
Green River Basin ◽  
Green River

scholarly journals Fracture porosity creation and persistence in a basement-involved Laramide fold, Upper Cretaceous Frontier Formation, Green River Basin, USA

2016 ◽  
Vol 153 (5-6) ◽  
pp. 887-910 ◽  
Author(s):  
STEPHEN E. LAUBACH ◽  
ANDRÁS FALL ◽  
LAUREN K. COPLEY ◽  
RANDALL MARRETT ◽  
SCOTT J. WILKINS
Keyword(s):  
Fluid Inclusion ◽  
River Basin ◽  
Upper Cretaceous ◽  
Great Depth ◽  
High Angle ◽  
Green River Basin ◽  
Green River ◽  
Considerable Uncertainty ◽  
Frontier Formation ◽  
Current Maximum

AbstractFracture-hosted porosity and quartz distribution along with crack-seal texture and fluid inclusion assemblage sequences in isolated, bridging quartz deposits show that open fractures can persist through protracted burial and uplift in foreland basins. Fractures oriented at a high angle to current maximum compressive stress remain open and were weak mechanical discontinuities for millions of years even at great depth. Upper Cretaceous Frontier Formation sandstones in the basement-involved (Laramide) Table Rock anticline, eastern Greater Green River Basin, Wyoming sampled by two horizontal wells (cut parallel or nearly parallel to bedding and at a high angle to steeply dipping fractures) have 41.5 m of rock in four cores at depths of 4538–4547 m. Cores intersect older E-striking Set 1 fractures are abutted by or locally cross-cut by N-striking Set 2 fractures. Both sets contain quartz and porosity. Sequenced using quartz crack-seal cement texture maps, Set 1 fluid inclusion assemblage (FIA) trapping temperatures increase progressively from 140 to 165°C then decrease toc. 150°C, compatible with fracture opening overc. 15 Ma during rapid burial followed by uplift in Eocene–Oligocene time. Set 2 opened atc. 160°C, probably near maximum burial. After a period of quiescence, Set 2 reopened atc. 5 Ma atc. 140°C, on a cooling trajectory. Intermittent Set 2 movement could reflect local basement-involved fault movement, followed after a pause by further Set 2 reactivation in the modern stress field during uplift. Interpretations are sensitive to available burial/thermal histories, which have considerable uncertainty.

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