Vitrinite Reflectance Measurements of Cretaceous Outcrop Samples from the Wyoming Thrustbelt, Southwestern Wyoming |
By Mark Pawlewicz and Mark Kirschbaum |
Open-File Report 2004–1360 |
Version 1.0 |
Published 2004 |
Eleven outcrop samples from the Wyoming thrustbelt region in southwestern Wyoming were collected for analysis as part of the U.S. Geological Survey’s ongoing oil and gas assessment project for selected basins in the western United States. The samples are all Cretaceous in age. Latitude and longitude data were obtained with a global positioning system unit. The lithology of these samples is either mudstone or coal. The samples were examined with a reflected light microscope to determine their degree of thermal maturity by vitrinite reflectance. Sample quality and abundance of organic matter were good except for one mudstone where the presence of organic matter was reduced because of its lithology. |
The text of this report is presented here in Portable Document Format. The latest version of Adobe Acrobat Reader or similar software is required to view it. If you wish to download the latest version of Acrobat Reader free of charge, click here . |
For viewing and printing. (This version of the report is accessible as defined in Section 508.) |
AccessibilityFOIAPrivacyPolicies and Notices | |