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National Assessment of Oil and Gas Project - Powder River Basin Province (033) Slack Lineaments

Published by U.S. Geological Survey | Department of the Interior | Catalog Last Checked: May 05, 2026 at 09:53 PM | Dataset Last Updated: May 24, 2021 at 12:00 AM
This dataset represents lineaments in the Powder River Basin as identified in the following publication: Slack, P. B., 1981, Paleotectonics and hydrocarbon accumulation, Powder River basin, Wyoming: American Association of Petroleum Geologists Bulletin, v. 65, no. 4, p. 730-743. A lineament is defined as a linear topographic feature of regional extent that is believed to reflect crustal structure (Hobbs et al., 1976, p. 267). Lineament features were transferred from the publication to a hard-copy base map by province geologist, then digitized and referenced for use in a Geographic Information System (GIS). Lineaments may: 1) enhance secondary reservoir permeability and 2) provide migration pathways in unconventional rocks.

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