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Filters: Tags: {"scheme":"https://www.sciencebase.gov/vocab/category/NGGDPP/nggdpp_collection_types","name":"ndc_collection"} (X) > Categories: Collection (X) > partyWithName: William L. Lassetter (X)

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The Silica Collection consists of descriptions for 51 outcrop samples collected as part of an evaluation of potential high-silica resources in the western region of Virginia. Sampling was conducted in conjunction with reconnaissance field mapping to determine the extent of high-silica deposits. The record for each sample consists of a physical description, location information, sieve analysis, and chemical test data. The results of laboratory analyses are included in several published reports including DGMR Publications 32, 67 and Mineral Resources Report 11.
Categories: Collection, Data, Physical Item; Types: Collection; Tags: ndc_collection
In 2008, DGMR received by donation from the University of Virginia (UVA) a large collection of rock, mineral, and fossil specimens that was at risk of imminent disposal or dispersal due to the lack of adequate storage facilities. The collection includes many valuable and irreplaceable geologic specimens collected in Virginia by UVA students, faculty, and geoscientists from the early Virginia Geological Survey. Parts of the collection were at one time displayed in the Lewis Brooks Hall of Natural Science, which opened in 1877. Following the closure of the UVA Department of Geology in the 1960s, the collection was moved to various warehouse storage areas, where it was largely forgotten and inadequately preserved....
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This collection includes 4,525 rock thin sections archived by the DMME Virginia Division of Geology and Mineral Resources. The thin sections represent a wide range of rock types in Virginia and are available for petrographic studies. Many, but not all of these thin sections are associated with rock specimens inventoried in the Rock Repository, identified by the tag "R-#####". Other thin sections represent rock specimens from earlier studies for which documentation may exist, yet the original rock sample may not be available. The location coordinates for the thin sections are approximate, given by the 7.5-minute quadrangle centroid. Work continues on this collection to better document missing information.


    map background search result map search result map UVA Mineral and Rock Specimens (Virginia) Thin Sections (Virginia) Silica Sample Analyses (Virginia) UVA Mineral and Rock Specimens (Virginia) Silica Sample Analyses (Virginia) Thin Sections (Virginia)