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• Organization: Department of the Interior
• Updated: 20230120 | Harvested: July 17, 2025 at 08:27 PM

This data release contains programmed pyrolysis, organic petrographic (reflectance), and semiquantitative X-ray diffraction mineralogy data for subsurface coal and shale samples from around the...

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• Organization: Department of the Interior
• Updated: 20221121 | Harvested: July 16, 2025 at 09:39 AM

The Ouachita Mountains record the late Paleozoic Laurentia-Gondwana orogenic event along southern Paleo-North America during Pangea supercontinent formation. This data release contains a digital...

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