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Source beds of petroleum in the Denver Basin
Paul J. Swetland, Jerry L. Clayton
1976, Open-File Report 76-572
Crude oil and shale samples from the Denver basin of Colorado, Wyoming, and Nebraska were analyzed by organic geochemical techniques to determine the stratigraphic occurrence and regional distribution of petroleum source beds. The study demonstrates that the oils produced from Cretaceous Sussex, Shannon, ?D? and 'J' sandstone reservoirs are genetically...
Crossbedding of the Potomac Formation in Fairfax County, Virginia
Gordon Whitney Weir
1976, Open-File Report 76-193
Crossbedding in sandstone units is the most conspicuous sedimentary structure of the Potomac Formation in Fairfax County, Virginia. Most sets of crossbeds are a few feet thick and several feet wide and tens of feet long. Trough sets are dominant, but planar sets are also common. Dip directions of crossbeds...
Geothermal investigations in Idaho, Part IV, Isotopic and geochemical analyses of water from the Bruneau-Grand View and Weiser areas, Southwest Idaho
Craig T. Rightmire, H.W. Young, R.L. Whitehead
1976, Open-File Report 76-166
Variations of deuterium and oxygen-18 concentrations in thermal ground waters and local nonthermal springs have been used to aid in describing the source of recharge in the Bruneau-Grand View and Weiser areas, southwest Idaho. Isotope and geochemical data for the Bruneau-Grand View area suggest that recharge to the area may...