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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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The Minnesota Department of Natural Resources (DNR) completed an inventory of the holdings of the DNR Drill Core Library (DCL). The Drill Core Library facility contains geologic materials including drill core, rotasonic samples, cuttings, pulps and rejects, processed materials, peat, thin sections, thin section billets and hand samples. The inventory project also included identifying space and preservation issues, beginning the process of centralizing and standardizing the administrative databases for all holdings, and making more information within the DCL publicly available.
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Most projects conducted by the MWRA have attached to them a geotechnical report and accompanying environmental information. There are also eighteen marine drilling reports on work in the Boston Harbor, as well as, two hardbound copies on the Geology of the Waschusett Reservoir Area. All reports are stored in the library at the main facility in Chelsea; however, not all project managers turn over reports to the librarian for storage. Most projects conducted by the MWRA, related to the construction of water and sewer lines, have attached with them, a geotechnical report and accompanying environmental information. Other paper reports include: eighteen marine drilling reports from work in Boston Harbor; as well as two...
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The 3002’ length core was extracted from the Redstone Quarry in Conway, NH in 1975 as part of an evaluation of geothermal potential produced by the natural decay of several radioactive minerals present in the Jurassic age Conway Granite pluton. The core extracted from the borehole at the Redstone Quarry is the deepest core drilled in New Hampshire. The Redstone Core project was part of a collaboration between the New Hampshire State Geologist and the U.S. Energy Research and Development Administration. Significant geothermal resources were not found. NHGS estimates that approximately half of the original 3002’ foot core remains in core boxes with sufficient documentation tags to identify the depth intervals each...
Collection includes cores extracted over decades by mineral exploration firms as they completed their Maine work or otherwise released their data, covering both public and private lands that were the subject of mineral exploration. These records represent the best public collection of the major mineral exploration efforts of the 1960s-1980s. This collection of 595 scanned core records is accessible through a Google Earth application. Please contact the Maine Geological Survey to discuss access to the collection.
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Provide access to digital versions of historical mining and mineral exploration claims maps and documents.
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Dataset contains point data describing the results of 1-channel and 12-channel seismic refraction studies mapped at a scale of 1:24,000, from the Maine Geological Survey. The results include the depth to the water and depth to the bedrock. Links are also provided, when available, to the profile graphs for the seismic line.
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Set of scanned documents of progress files on unpublished geologic mapping projects.
These web map applications make available the georeferenced digital images of the bedrock and surficial quadrangle maps published by the Maine Geological Survey at the 1:24,000, 1:62,500, 1:100,000, 1:250,000 and 1:500,000 scales.
Collection of aerial photos taken during April of 1930, of the area along the Delaware River from Port Jervis, NY to Biles Island, just south of Trenton.
Categories: Data; Tags: ndc_collection
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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.
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This collection contains 53 New Jersey Zinc Company zinc exploration maps and associated soil logs. They span a large part of northern New Jersey in Morris, Sussex, Hunterdon and Warren counties. The maps are held solely by the NJGWS. At one time these maps and soil logs were the property of the New Jersey Zinc Company but were donated to the NJGWS when the New Jersey Zinc Company went out of business in 1986.
map background search result map search result map Collection of Digital Maps from NJ Collection of paper reports from Massachusetts Collection of Scanned Borehole Maps From New Jersey Collection of Scanned Bedrock Geologic Paper Maps Collection of Scanned Surficial Geologic Paper Maps Collection of Miscellaneous Maps for Massachusetts Collection of 1930 Aerial Photos Collection of Maine Web Map Applications and Datasets Maine Seismic Refraction Profiles ArcGIS Online Feature Layer New Jersey Zinc Company zinc exploration maps and associated soil logs Borehole Maps and Logs Created During Interstate 80 Construction Maine Geological Survey Progress Files Maine Geological Survey Field Photos Collection Maine Geological Survey Field Photos - Dr. Joseph T. Kelley Collection Maine Geological Survey Mining Claims Maps and Documents Minnesota Drill Core Library Inventory Collection of Mineral Deposits and Occurrences in Minnesota Collection of Exploration, Scientific, and Engineering Boring Hole Locations in Minnesota Exploratory Drill Core (Redstone Core) from Conway, New Hampshire Exploratory Drill Core (Redstone Core) from Conway, New Hampshire Minnesota Drill Core Library Inventory Collection of 1930 Aerial Photos Collection of Scanned Borehole Maps From New Jersey Collection of Scanned Bedrock Geologic Paper Maps Collection of Scanned Surficial Geologic Paper Maps New Jersey Zinc Company zinc exploration maps and associated soil logs Borehole Maps and Logs Created During Interstate 80 Construction Collection of Digital Maps from NJ Collection of paper reports from Massachusetts Maine Seismic Refraction Profiles ArcGIS Online Feature Layer Maine Geological Survey Progress Files Maine Geological Survey Field Photos Collection Maine Geological Survey Field Photos - Dr. Joseph T. Kelley Collection Maine Geological Survey Mining Claims Maps and Documents Collection of Mineral Deposits and Occurrences in Minnesota Collection of Exploration, Scientific, and Engineering Boring Hole Locations in Minnesota