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Investigations about porosity in petroleum reservoir rocks are discussed by Schmoker and Gautier. Pollastro discusses the uses of clay minerals as exploration tools that help to elucidate basin, source-rock, and reservoir history. The status of fission-track analysis, which is useful for determining the thermal and depositional history of deeply buried sedimentary rocks, is outlined by Naeser. The various ways workers have attempted to determine accurate ancient and present-day subsurface temperatures are summarized with numerous references by Barker. Clayton covers three topics: (1) the role of kinetic modeling in petroleum exploration, (2) biological markers as an indicator of depositional environment of source rocks and composition of crude oils, and (3) geochemistry of sulfur in source rocks and petroleum. Anders and Hite evaluate the current status of evaporite deposits as a source for crude oil.
Fish Lake Valley, in southern Nevada and California, contains about 675 acres of uranium-enriched lacustrine and marsh sediments in an arid alluvial-fan environment. A change in the trend of the Silver Peak Range, which forms the valley's eastern margin, and bedrock spurs that divert clastic sediments away from the marsh have allowed a large deposit of lacustrine and marsh sediment to accumulate. Section lines across the deposit were sampled at 0.3-m intervals to a maximum depth of 6.5 m. All samples were dried and analyzed for uranium and organic matter content. Uranium concentrations in the sediments ranged from 6 to 800 ppm and averaged 64.3 ppm (253 samples). Uranium values correlate wit...
A multidisciplinary approach to research studies of sedimentary rocks and their constituents and the evolution of sedimentary basins, both ancient and modern.