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Location data for exploratory, sciencific, or engineering borings conducted statwide since the early 1900s. Drill Core and/or other samples from a large number of these borings are stored in the DNR's Drill Core Library in Hibbing, Minnesota. For more information on the drill core library please vist the DNR's webpage: http://www.dnr.state.mn.us/lands_minerals/dc_library.html
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Collections of physical samples and data managed and preserved by the U.S. Geological Survey (USGS). The separate collections are managed by different projects and Mission Areas of the USGS. The collections are distributed across the United States, in various USGS offices. Preservation of some of these collections may be supported by the National Geological and Geophysical Data Preservation Program. USGS strives to publicly expose its materials, data, and other research to further scientific inquiry. Points of contact for individual collections may be contacted to request access to materials and data.
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This collection contains test-hole cores through surficial sediments and shallow bedrock drilled by the Nebraska Geological Survey (Conservation and Survey Division), the Nebraska Department of Roads, the U.S. Army Corps of Engineers, and other organizations, including bedrock cores drilled by petroleum and mineral concerns. A portion of the cores in this collection originated from oil producing areas and areas with potential petroleum development within the Panhandle region of western Nebraska. These cores were drilled by oil companies between 1950-1969 and were later donated to the Nebraska Geological Survey (Conservation and Survey Division). With the assistance of the National Geological and Geophysical...
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This document compiles the location of mineral deposits and resources in Minnesota containing commodities that were identified as critical minerals by the United States Geological Survey (USGS) and Department of the Interior in their 2022 Final List of Critical Minerals.


    map background search result map search result map Collection of Cores from Nebraska U.S. Geological Survey Collection of Mineral Deposits and Occurrences in Minnesota Collection of Exploration, Scientific, and Engineering Boring Hole Locations in Minnesota Collection of Cores from Nebraska Collection of Mineral Deposits and Occurrences in Minnesota Collection of Exploration, Scientific, and Engineering Boring Hole Locations in Minnesota U.S. Geological Survey