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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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The Core Research Center (CRC) was established in 1974 by the U.S. Geological Survey (USGS) to preserve valuable rock cores for use by scientists and educators from government, industry, and academia. The cylindrical sections of rock are permanently stored and available for examination and testing at the core storage and research facility in Denver, Colorado. The CRC is currently one of the largest and most heavily used public core repositories in the United States. The CRC encourages use of its facility by all interested parties. Tours of the facility are available by appointment.
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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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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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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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This collection includes skeletonized core in boxes from 336 wells drilled in Arizona. Material was collected mostly from mineral exploration projects, and includes cores from 3 oil wells and one geothermal exploration borehole. This collection has not yet been cataloged. Please contact the Arizona Geological Survey to inquire about this collection.
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This collection includes rock core, mainly from oil and as wells. Kansas Geological Survey manages an electronic database providing an index for the core samples.
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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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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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This collection includes cores from 3233 oil and gas exploration wells in Alabama that were permitted by the State Oil and Gas Board. Each record is a box of core.
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All core samples on file at the KGS Well Sample and Core Library. Includes continuous or interval cores on file at the KGS Well Sample and Core Library in Lexington, Kentucky. Core samples range from PreCambrian to Mesozoic in age and are derived from oil and gas wells, coal or mineral exploration wells, geotechnical wells, and hydrologic investigation wells.
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Collection includes rock cores extracted during drilling operations by Knox Mining Corporation for mineral exploration in southern Maine. Drilling operations occured in townships: Appleton, Hope, Union, Waldoboro, Warren. Please contact the Maine Geological Survey to discuss access to the collection.
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The FGS receives 2, 3 and 4 inch bore hole core samples. The core can be spot cores - taken from specific intervals, or continuous core ¿ representing the entire length of a bore hole. Samples arrive in various containers, and many times must be reboxed for long term storage. The majority of our samples are stored in cardboard boxes, but we do have a small percentage of cores in wooden boxes and PVC. For our 2 and 3 inch cores we have boxes that hold 8-10 feet of sample, similar to traditional NQ core boxes. The boxes are made of cardboard and are assembled by folding and stapling the sides. The boxes are 25.5¿ x 13¿ x 2.5¿. Our 4 inch cores are also stored in cardboard boxes. These boxes hold 4 feet of sample and...
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Collection of rock cores extracted during drilling operations conducted by Maine Department of Environmental Protection for site investigations in various towns across the State of Maine. Please contact the Maine Geological Survey to discuss access to the collection.
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The Utah Geological Survey's (UGS) Utah Core Research Center, established in 1951 and now occupying a 13,866-square-foot warehouse, contains the region's only publicly available and most complete collection of geologic cuttings and core from Utah. The Utah Core Research Center provides a service to all interested individuals, universities, and companies requiring direct observation of actual samples for their research or investigations, and it acts as a repository for irreplaceable geologic samples which might otherwise be discarded. Used more and more often for education and research endeavors, the Utah Core Research Center offers core workshops for oil company training sessions, geologic program short courses,...
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Collection of rock cores extracted during drilling operations involving Fraser Paper at the Moro Plantation for base metals and at Maple-Hovey for manganiferous slate. Please contact the Maine Geological Survey to discuss access to the collection.
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Collection of rock cores extracted during drilling operations by Mead Paper Company for mineral exploration in the Parmachenee Township. Please contact the Maine Geological Survey to discuss access to the collection.
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This is a collection of well cores from the state of Indiana with a few from surrounding states. There are 1,084 cores filed to date at the Indiana Geological Survey. This translates into approximately 34,098 boxes and 202,744 feet of core in the building, which is at capacity. The core in this collection is variable with different diameters. Some are filed whole, halved, and quartered. Some of the cores are sawed which gives a very smooth surface as opposed to a raw surface when the core is split.
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Collection of rock cores extracted during drilling operations conducted by Newmont Mining Corporation for mineral exploration in townships: T13R8, T15R6. Please contact the Maine Geological Survey to discuss access to the collection.
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Collection of rock cores extracted during drilling operations by Great Northern Paper for mineral exploration in northern Maine. Drilling occurred in townships: T1R12, T2R9, T3R11, T3R15, T7R15, T8R9, T9R10, T10R7, T10R9, T10R10, T11R9, T15R9. Please contact the Maine Geological Survey to discuss access to the collection.


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