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Flynn Creek crater is a 3.8 km diameter, 360-million-year-old impact structure located in north central Tennessee, and is an invaluable terrestrial analog for the study of impact cratering dynamics. The Flynn Creek Crater Sample Collection consists of over two thousand boxes of drill core from 18 drill holes in the crater’s central uplift, floor, and rim. Impact-induced hydrothermal systems are of considerable scientific interest because they may have played a significant role in the origin and evolution of life on early Earth and produced temporary near-surface habitable environments on Mars. Between 1967 and 1979, USGS scientist Dr. David Roddy conducted a drilling program at Flynn Creek crater. The drilling...
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Map Package format. Structure point data set containing locations and structure type, with strike and dip (planar features) and trend and plunge (linear features). The symbology is derived from ESRI Representations associated with the SymbolFGDCLookup table in the geodatabase. Most trends and dips are based on field measurements using Brunton or similar compass. A sun compass was employed in areas of strong magnetic signature, such as iron-formation. Contains bedrock structural measurements acquired by the multiple field geologists over 40+ years. Collected from bedrock exposures and from data transcribed from published and unpublished analog (non-digital) maps. To access the full data set, download using the link...
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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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Provide access to digital versions of historical mining and mineral exploration claims maps and documents.
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This collection consists of Western Interior Upper Cretaceous ammonites and Inoceramids fossils with stratigraphic and spatial data largely from the Rocky Mountain region of North America. Data is primarily type fossils from the USGS Denver Mesozoic Invertebrate Catalog created and maintained by U.S. Geological Survey (USGS) that as of March 2020 has been transferred to the Smithsonian National Museum of Natural History. Samples collected by paleontologist William A. Cobban during his sixty years of service within the USGS Paleontology And Stratigraphy Branch and Geologic Mapping Team. Approximately 14,595 fossil localities are represented in this collection. In a career that spanned almost 75 years, Cobban fundamentally...
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Overview map with 11 layers of lines and polygons that can be turned on an off making younger units 'removable' to expose older bedrock units as part of a layered bedrock geologic map of Minnesota. Downloadable layers can be found on the MGS's Open Data portal under the Spatial Datasets, D-05, Layered Bedrock Geology. Check the 11 Layers on the right side of the page and select which layer you would like to download. Mesozoic--Map showing where rocks of Mesozoic (principally Cretaceous age, nominal Jurassic age) mapped or presumed to exist in Minnesota; Paleozoic--Map showing where Paleozoic age rocks are mapped in Minnesota; Precambrian--Map showing the location and type of Precambrian rocks mapped in Minnesota;...
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In 1967 and 1968 the USGS, in partnership with NASA and the National Park Service, extracted rock core from 13 locations in Yellowstone National Park. Depths of the holes ranged from 215 ft to 1,088 ft and the total drilled footage was 6,802 ft. The deepest hole was drilled in Norris Basin. Research on these cores provided critical understanding of complex geothermal systems that would inform the potential development of other systems, external to the park, as energy sources. These cores are extremely rare due to the many restrictions on sampling in the park. Years later, the cores were used to investigate the origin of some of Yellowstone supervolcano’s lavas using techniques that did not even exist when the cores...
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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.
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Geologic samples including hand samples and thin sections that were collected between 1955 and 1956 by Helen Foster and Harold May during the geologic mapping of the Pacific islands of Ryukyu that extend southwest from Japan. Most of the samples were collected from Ishigaki Island and were analyzed to interpret the geology of Ishigaki in USGS Professional Paper 399-A. Ruth Deike of the USGS Geologic Division began an inventory of the samples and thin sections in 2007, but the samples were soon after sent to the Core Research Center for storage. The inventory of the samples was completed by Chris Stuckey of the Core Research Center with a total of 807 hand samples and thin sections. Supplementary data has been added...
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Since its inception in 1879, the USGS has collected and preserved geoscience data and sample collections, which include millions of paleobiological specimens stored in USGS facilities and at the Smithsonian Institution National Museum of Natural History (NMNH) in Washington, D.C. As one of the largest paleontological collections in the world, the USGS paleontology collection is invaluable, as many specimens may no longer be collected due to high field collection costs or inaccessibility to sampling sites, which have been restricted, urbanized, or modified via landscape processes. The USGS Denver Paleontology Collection includes ~1.2 million specimens stored in 1000 Smithsonian museum cases. The primary collections...
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Hand specimens of rocks collected as a part of field work conducted primarily by present and former WGNHS staff members. Samples date from the early 20th century to the 1990s and were collected throughout the state. Many of the samples are described in the historical field notebook collection, and relationships between the samples and the field notebooks have been established and captured in identifiers. Locations for samples were taken from field notes, maps, and accession lists. There are approximately 5,700 hand samples in this collection.
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This sections scanned by the Kentucky Geological Survey and served via a KGS web application. Thin sections images displayed with plane-polarized light and cross-polarized light in the online thin section slider viewer. Each thin section assigned an International Generic Sample Number (ISGN).


map background search result map search result map Collection of Digital Maps from NJ Rock hand specimens from Wisconsin USGS Denver Paleontology Collection Maine Seismic Refraction Profiles ArcGIS Online Feature Layer 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 Collection of Margaret Kaeding Field Maps Maine Geological Survey Mining Claims Maps and Documents Collection of Layered Bedrock Geology Maps, MGS Database, D-05 Collection of Structure Point Measurements in Minnesota, MGS Database, D-06 Dan Dombroski Field Notebook Collection of Exploration, Scientific, and Engineering Boring Hole Locations in Minnesota Collection of Thin Section Images Collection of Geochemical Analysis, New Jersey Zinc Company, Sussex and Morris Counties, New Jersey Flynn Creek Crater Sample Collection USGS Collection of Geologic Samples from the Ryukyu Islands, Japan, 1955 to 1956 USGS William A. Cobban Cretaceous Ammonite Collection USGS Yellowstone National Park Core Collection USGS Yellowstone National Park Core Collection Borehole Maps and Logs Created During Interstate 80 Construction Collection of Margaret Kaeding Field Maps Dan Dombroski Field Notebook Collection of Geochemical Analysis, New Jersey Zinc Company, Sussex and Morris Counties, New Jersey Collection of Digital Maps from NJ Flynn Creek Crater Sample Collection 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 Thin Section Images Rock hand specimens from Wisconsin Collection of Layered Bedrock Geology Maps, MGS Database, D-05 Collection of Structure Point Measurements in Minnesota, MGS Database, D-06 Collection of Exploration, Scientific, and Engineering Boring Hole Locations in Minnesota USGS Collection of Geologic Samples from the Ryukyu Islands, Japan, 1955 to 1956 USGS William A. Cobban Cretaceous Ammonite Collection