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Folder: ROOT ( Show direct descendants )

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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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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.
Field notebook of the New Jersey Geological Survey written by Meredith Johnson; statewide field notes, various locations, differing tasks, personal correspondences
Categories: Data; Tags: ndc_collection
the NJGWS scanned the Mineral Commodities Books in its possession. There are six books in this collection. They date from the late 1800’s to about 1915 and include all mining activities and statistics reported to the NJ Geological Survey during those years.
Categories: Data; Tags: ndc_collection
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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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Provide access to digital versions of historical mining and mineral exploration claims maps and documents.
As part of its Geologic Legacy Program, the NJGWS scanned and digitized documents from recently retired geologist Richard Volkert. As part of this project the NJGWS digitized of approximately 17,297 field locations from his field maps and notebooks.
Categories: Data; Tags: ndc_collection
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Includes Permanent Notes and field notes by former and present geologists
The NJGWS scanned and digitized 517 penciled, historic geologic mine logs from New Jersey’s mines, pits and quarries. The data contained on the paper index cards dates back to the 1980’s. Collection 3
Categories: Data; Tags: ndc_collection
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Collection of data from the Lead-Zinc District of Northwestern Illinois. Collection includes borehole data, driller logs, descriptive logs, formation tops, and downhole lead, zinc, and iron concentrations from mining operations circa 1900-1980. Sources of the collection include original mining company records and maps, maps and logs from the US Bureau of Mines "Illinois Mineral Development Atlas", and Illinois State Geological Survey records.
Categories: Physical Item; Types: Collection; Tags: ndc_collection
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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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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.


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 Lead-Zinc Mining District Data from Illinois Collection of Well Driller Logs from Minnesota Collection of Billiton Metals and Ores rock cores Collection of Maine Yankee rock cores Collection of Geochemical Data from Illinois Geologic Field Notes and Maps from New Jersey Collection of Karst Data from Minnesota Quad-Based Infrared Aerial Photographs, 1988-1989 Suhas Ghatge Field Notes Collection Meredith Johnson, Former State Geologist, Field Notes Geologic mine logs from New Jersey's mines pits and quarries. Minerals commodities books Rich Volkert, Former Geologist, Station Points Maine Seismic Refraction Profiles ArcGIS Online Feature Layer Collection of Borehole Geophysical Logs from Minnesota Maine Geological Survey Progress Files Maine Geological Survey Field Photos - Dr. Joseph T. Kelley Collection Maine Geological Survey Mining Claims Maps and Documents Suhas Ghatge Field Notes Collection Meredith Johnson, Former State Geologist, Field Notes Geologic mine logs from New Jersey's mines pits and quarries. Minerals commodities books Rich Volkert, Former Geologist, Station Points Geologic Field Notes and Maps from New Jersey Quad-Based Infrared Aerial Photographs, 1988-1989 Collection of U.S. Bureau of Mines rock cores in Maine Collection of USGS Meddybemps rock cores Collection of Billiton Metals and Ores rock cores Collection of Maine Yankee rock cores Maine Seismic Refraction Profiles ArcGIS Online Feature Layer Maine Geological Survey Progress Files Maine Geological Survey Field Photos - Dr. Joseph T. Kelley Collection Maine Geological Survey Mining Claims Maps and Documents Collection of Geochemical Data from Illinois Collection of Lead-Zinc Mining District Data from Illinois Collection of Borehole Geophysical Logs from Minnesota Collection of Well Driller Logs from Minnesota Collection of Karst Data from Minnesota