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Folder: ROOT ( Show direct descendants )

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ROOT
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This collection (known internally at Maryland Geological Survey as Component 8) consists of 211 infrared, 9 in. by 9 in. aerial photographs (211 unique frames) flown on a 7.5-minute U.S. Geological Survey (USGS) quadrangle basis. The photographs date from 1988-1989 and were flown or otherwise acquired by the USGS National Aerial Photograph Program (NAPP). The Maryland counties covered by these photographs include Allegany, Anne Arundel, Calvert, Cecil, Charles, Dorchester, Kent, Prince George’s, Queen Anne’s, Somerset, St. Mary’s, Talbot, Washington, and Worcester Counties. The scale of these photographs is not printed on the photographs; however, Maryland Geological Survey (MGS) calculates the scale to be approximately...
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Paper copies of chemical analyses made at Illinois State Geological Survey from approximately 1932 to 1995. Includes chemical analyses for approximately 30,000 coal samples, 20,000 rock samples, 5,000 gas samples, 5,000 brine samples, and 5,000 water samples.
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Collection includes cores extracted during drilling operations including the U.S. Geological Survey for the purposes of site investigations in the Meddybemps township. Please contact the Maine Geological Survey to discuss access to the collection.
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The current database consists of location 9,032 entries. The surface-based, point data include 5,272, 6,939, and 903 density, magnetic susceptibility, and NRM measurements, respectively. Downhole data from 146 drillcore have also been incorporated, yielding an additional 1,145 and 9,622 measurements of density and magnetic susceptibility, respectively. Geologic interpretation of gravity and magnetic anomaly data in a given area is greatly enhanced if density, magnetic susceptibility (MS) and natural remanent magnetization (NRM) data are available for representative rock-types (Chandler and others, 2008). Along with geologic information from outcrop and drill-holes, rock property data help relate geophysical anomaly...
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Poorly-labeled boxes of rock, sediment, and fossil specimens collected by individual workers at different times. Also, numerous samples of Cenozoic volcanic ashes that may be of unrealized future value as a reference collection. Hand specimens exist in our collections, but they are completely uncataloged and are improperly stored. This collection may be discarded as additional space restrictions are imposed.
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Lithology logs from oil and gas wells and stratigraphic tests in various formats, particularly strip logs and lithologic logs of cuttings produced by stratigraphy consulting firms.
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Collection includes rock cores extracted during drilling operations for Getty - Mount Chase base metal exploration. Please contact the Maine Geological Survey to discuss access to the collection.
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An archive of mineral exploration files is maintained by MN DNR at its Hibbing facility MN DNR mineral exploration files archive
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The Historic Images Collection includes approximately 15,500 photographs, slides, lantern slides and digital media in this collection were taken during the course of geologic, mineral resource, and geologic hazard investigations carried out by Virginia Energy staff beginning in the first half of the 20th century. The collection includes images of important rock outcrops that demonstrate key features of stratigraphic units, fossils indicative of the age of rock formations, outcrop-scale geologic structures such as faults and folds, economically significant minerals and mine sites, and geologic hazards such as landslides and sinkholes. Images are available online in JPG format. High resolution imagery is available...
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This collection includes folders that contain coal chemical data from Indiana, collected before 1990. This collection is publicly accessible.
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The County Well Index database was initiated by MGS, and is now a collaborative effort of MGS and the Minnesota Department of Health (MDH). Much effort is committed to compile, add value, and distribute data from drilling done mostly by well contractors across the state. The MGS role is in categorization and correlation of materials intersected by drilling, as MDH administers well regulation. This GIS-based system contains basic information for over 540,000 wells drilled in Minnesota, and single-copy paper records are on file for about 100,000 additional sites. The entire well record including construction information such as casing, screen and pump information, hydrologic data, and descriptions of geologic materials...
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Collection includes rock cores extracted during drilling operations by Billiton Metals and Ores for tin exploration in Waterville, Winslow. Please contact the Maine Geological Survey to discuss access to the collection.
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Collection of scanned mylar overlays and topographic field maps displaying outcrop, structural measurements, traverses, and geologic units.
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Static metadata (current to August 2018) of Minnesota's borehole geophysical log collection maintained by the Minnesota Geological Survey. This collection is web-accessible through the MGS Open Data Portal at https://z.umn.edu/borehole_geo, where users can obtain the most up-to-date information pertaining to old and new borehole geophysical logs and download corresponding PDF and LAS files for each log (if available). The Borehole Geophysical Database (BGD) is a collection of over 7000 borehole geophysical logs of water wells and drill holes throughout Minnesota. Database collections reside at the Minnesota Geological Survey (MGS) and are continually maintained and expanded upon by MGS staff as part of MGS mapping...
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The Karst database is now (06/30/2020) being managed by the Minnesota Department of Natural Resources, Ecological and Water Resources. Since the early 1980s, the partner agencies have been mapping karst features and publishing various versions of their results in the form of 1:100,000 scale County Geologic Atlases. In the mid 1990s, the Minnesota Department of Natural Resources was assigned responsibility for the hydrogeology portions of the County Atlases, and therefore is now responsible for the karst mapping. Sinkhole distribution maps have been published for several counties. The karst feature database has been developed to allow sinkhole and other karst feature distributions to be displayed and analyzed across...
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Collection includes mineral exploration cores originally obtained by the U.S. Bureau of Mines. Exploration for base metals, Mn-slate, alkaline earth elements was conducted. Cores were obtained from the following locations in Maine: Albany, Blue Hill, Brooksville, Buckfield, Hammond, Newry, Spencer Lake, TDR2, T9R3. Please contact the Maine Geological Survey to discuss access to the collection.
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Collection of rock cores extracted during drilling operations conducted for the Maine Yankee nuclear power plant in Wiscasset, Maine. The plant has been decommissioned and removed. Spent nuclear fuel remains on site. Please contact the Maine Geological Survey to discuss access to the collection.
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Paper maps, including many original-draft or working copies.
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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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Compiled public domain and donated geotechnical drillhole data; plans call for this database to be merged with sediment composition profiles


map background search result map search result map Collection of U.S. Bureau of Mines rock cores in Maine Collection of USGS Meddybemps rock cores Collection of Cores from Nebraska Collection of Well Driller Logs from Minnesota Collection of Rock Properties from Minnesota Collection of Getty - Mount Chase rock cores Collection of Billiton Metals and Ores rock cores Collection of Maine Yankee rock cores Collection of Geochemical Data from Illinois Collection of Mineral Exploration Files from Minnesota Collection of Karst Data from Minnesota Indiana Coal Chemical Data Collection of Maps from Nebraska Collection of lithology logs from Nebraska Collection of Hand samples from Nebraska Collection of Geotechnical Drilling from Minnesota Historic Images (Virginia) Quad-Based Infrared Aerial Photographs, 1988-1989 Collection of Borehole Geophysical Logs from Minnesota Collection of Mylar Overlays and Topographic Field Maps in Minnesota Quad-Based Infrared Aerial Photographs, 1988-1989 Indiana Coal Chemical Data Collection of U.S. Bureau of Mines rock cores in Maine Collection of USGS Meddybemps rock cores Collection of Getty - Mount Chase rock cores Collection of Billiton Metals and Ores rock cores Collection of Maine Yankee rock cores Collection of Geochemical Data from Illinois Historic Images (Virginia) Collection of Cores from Nebraska Collection of Maps from Nebraska Collection of lithology logs from Nebraska Collection of Hand samples from Nebraska Collection of Borehole Geophysical Logs from Minnesota Collection of Mylar Overlays and Topographic Field Maps in Minnesota Collection of Well Driller Logs from Minnesota Collection of Rock Properties from Minnesota Collection of Mineral Exploration Files from Minnesota Collection of Karst Data from Minnesota Collection of Geotechnical Drilling from Minnesota