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Stratigraphic Inferences Derived from Borehole Data of Tertiary Basin-Filling Rocks of the Pahrump Valley Basin, Nevada and California

机译:来自pahrump Valley盆地,内华达州和加利福尼亚州第三系盆地充填岩石钻孔数据的地层推断

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This report summarizes the results from the compilation and interpretation of lithologic information from 266 drillers logs from the Pahrump Valley, NV-CA. Borehole records for the Pahrump Valley were selected from a total of several thousand available well logs as those having lithologic data and high confidence in the well locations. Drillers descriptions were reduced into one of 14 lithologic categories to produce a set of subsurface data that were internally consistent and amenable to contouring. Using the lithologic descriptors, the aggregate thickness of general lithologic types (coarse grained material, fine grained material, limestone, and volcanic material) were computed for each borehole. These data were used to compute ratios such as percent coarse-grained component of sedimentary rocks penetrated in each borehole that could be contoured.

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