This report contains results of organic carbon analyses performed by Rinehart Laboratories, Inc., Arvada, Colorado, under contract to the U.S. Geological Survey. The analytical method employs chemical (chromic acid) oxidation of an acid solution containing the rock residue. The detailed analytical specifications are contained in the Rinehart proposal in response to request for proposal 76-79 issued by the U.S. Geological Survey.
The samples analyzed were furnished by John W. Hosterman, U.S. Geological Survey, Reston, Virginia, who has performed clay mineralogical analyses on splits of these same samples.
In the following tabulation, samples are listed by the depth interval (in feet) over which the drill cuttings were collected. Organic carbon values are single determinations except where two values (duplicate analyses) are given. Each well is identified by county, well name, and API number. An estimate of the shallowest occurrence in the well of some named stratigraphic units has been inserted after the sample depth.
These analyses were performed as a part of the U.S. Geological Survey Eastern Black Shales Program, which is being pursued in cooperation with the U.S. Department of Energy under the Eastern Gas Shales Project.
