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William L. Lassetter

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The Well Cuttings Collection consists of well cuttings from 7,376 oil and gas wells in Virginia. This collection is available for study by scientists, citizens, government agencies, and by industry. DGMR is developing an online web-based application for searching and viewing the information about these well cuttings.
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The sinkhole locations shown on these maps have been digitized and are available as a draft ESRI shapefile. DGMR plans to complete a quality control analysis and modifications of the digital representation of these locations prior to release to the public.
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The Mineral Resources of Virginia (MRV) Program oversees the inventory of specific mineral occurrences, prospects, mines, quarries, and other mining and processing sites of base and precious metals, industrial minerals, and energy resources in the Commonwealth of Virginia. The resulting information is formatted for inclusion in the MRV database. The goal of the MRV Program is to establish and maintain a digital database of statewide mineral and energy resources information to serve the following purposes: Preserve key information about mineral occurrences, mines, prospects, oil and gas extraction sites, and mining-related processing sites in a digital archive; Support public safety and environmental investigations;...
This collection includes records pertaining to critical minerals and elemental materials in Virginia. The records include reports, maps, geochemical and geophysical datasets, drill core logs, photographs, and other materials that describe known occurrences or prospective resource locations of 37 critical minerals meeting the criteria defined by the U.S. Department of Interior in Federal Register 2018-10667. A "critical mineral” is defined as: (1) a non-fuel mineral or mineral material essential to the economic and national security of the United States; (2) a mineral material with a supply chain that is vulnerable to disruption; (3) serving an essential function in the manufacturing of a product, the absence of...
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The Coal Quality Data Collection includes results of laboratory analysis for 375 coal samples collected as part of a cooperative sampling program between DGMR and the U.S. Geological Survey (USGS). The samples were collected by DGMR staff during the period from 1975 to 1988 from a six county area in the Southwest Virginia Coalfield. A total of 38 coal beds are represented in the sampling program. For each sample location there are laboratory results for Proximate and Ultimate analysis, ash-fusion temperatures, and major- and minor- element analyses.
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