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Geochemical and mineralogical data on core samples from the Lewis Shale in the USGS Cow Creek 1-21 well, eastern Washakie Basin, Wyoming

Published by U.S. Geological Survey | Department of the Interior | Catalog Last Checked: August 01, 2026 at 03:04 AM | Dataset Last Updated: June 02, 2025 at 12:00 AM
This data release contains geochemical and mineralogical laboratory results from core samples collected from the USGS Cow Creek 1-21 well. The well was drilled and cored in 2022 and targeted the Lewis Shale on the eastern edge of the Washakie Basin in Carbon County, Wyoming. The core data include results from total organic carbon (TOC) and total carbon (TC) analysis, programmed pyrolysis, inductively coupled plasma-optical emission spectroscopy and mass spectrometry (ICP-OES/MS), X-ray diffraction (XRD), stable isotope (C-13) analysis, and vitrinite reflectance analysis. A separate data release contains 4 geophysical wire line logs and is available at <DOI URL XXXX>.

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