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Datasheets associated with borehole sampling of surficial sediments in Northern Virginia and Southern Maryland conducted by the U.S. Geological Survey for the Federal Highways Administration Turner-Fairbanks Research Center In Situ Scour Testing Device This spreadsheet contains the results of open-bore auger samples collected by the U.S. Geological Survey in Maryland and Virginia for the Federal Highways Administration Turner-Fairbanks Highway Research Center. 19 sites were selected in 14 different locations across northern Virginia and southern Maryland by FBGC scientists to drill boreholes for the development of the TFHRC’s In-situ Scour Testing Device (ISTD) and to investigate the sedimentological properties of different layers of the near-surface soil column. Each worksheet in this excel workbook contains the detailed log information for one site, including its name, gps coordinates, surface elevation, borehole depth, information about the drilling rig used... Categories: Data; Tags: Geography, Geomorphology, Information Sciences, Maryland, USGS Science Data Catalog (SDC), All tags... Virginia, augering, biota, surficial geologic units, Fewer tags Enhanced Terrain Imagery of the Carlisle 30 x 60 Minute Quadrangle from Lidar-Derived Elevation Models at 3-Meter Resolution This imagery dataset consists of 3-meter resolution, lidar-derived imagery of the Carlisle 30 x 60 minute quadrangle in Pennsylvania. The source data used to construct this imagery consists of 1-meter resolution lidar-derived digital elevation models (DEMs). The lidar source data were compiled from different acquisitions published between 2019 and 2020 and downloaded from the USGS National Map TNM Download. The data were processed using geographic information systems (GIS) software. The data is projected in WGS 1984 Web Mercator. This representation illustrates the terrain as a hillshade with contrast adjusted to highlight local relief according to a topographic position index (TPI) calculation. Categories: Data; Types: Downloadable, GeoTIFF, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Raster; Tags: Geography, Land Use Change, Pennsylvania, Water Resources, digital elevation models, All tags... elevation, image collections, lidar, topography, Fewer tags Cosmogenic Al-26/Be-10 Isochron Burial Data for the Sparta, NC Area This data release contains three spreadsheets that have aluminum-26 and beryllium-10 concentrations for samples collected in and near Sparta, North Carolina in 2021-2022. These samples were prepared for burial dating by the Reston Cosmogenic Nuclide (RECON) Lab and measured via accelerator mass spectrometry at the Purdue Rare Isotope Measurement (PRIME) Lab. The file “Sparta_SiteLocations_Odom.csv” contains site locations and interpreted ages; measurements of aluminum-26 and beryllium-10 and related data are located in respective .csv files. Categories: Data; Tags: Aluminum-26, Beryllium-10, Burial dating, Geochronology, Geology, All tags... Geomorphology, Geomorphology, Isochron, North Carolina, River terrace, Sedimentation, Seismology, Sparta, USGS Science Data Catalog (SDC), Fewer tags 2008 - Present Ecosystem History of South Florida's Estuaries Database (ver. 2.0, June 2022) The 2008 - Present Ecosystem History of South Florida's Estuaries Database contains listings of all sites (modern and core) and modern monitoring site survey information (water chemistry, floral and faunal data, etc.). Three general types of data are contained within this database: 1) Modern Field Data (2008-present), 2) Master list of location information on all modern sites, and 3) Core data - location information. Data are available for modern sites (from 2008 to present) and cores in the general areas of Florida Bay, Biscayne Bay, and the southwest (Florida) coastal mangrove estuaries. Specific sites in the Florida Bay area include Taylor Creek, Bob Allen Key, Russell Bank, Pass Key, Whipray Basin, Rankin Bight,... Categories: Data Release - Revised; Tags: 002, 004, 007, 008, 012, All tags... 014, Alinas Reef, Alligator Bay, Arsenicker Bank, Arsenicker Key, Arsenicker Shoal, Barnes Key, Big Cypress National Preserve, Big Lostmans Bay, Biscayne Bay, Black Creek Canal, Black Point, Black Point Creek Canal, Bob Allen Key, Bottle Key, Broad River, Broad River Bay, Broward County, Buchanan Bank, Butternut Key, Buttonwood Keys, C-111 Canal, Caesars Cut, Cape Sable, Card Bank, Central Everglades, Chicken Key, Chokoloskee Bay, Clive Key, Collier County, Convoy Point, Crab Keys, Crocodile Point, Dead Terrapin Basin, Dragover Bank, Duck Key, Everglades National Park, FL, Featherbed Bank, Florida, Florida Bay, Florida City Canal, Florida Keys, Gopher Pass, Goulds Canal, Gun Rock Point, Harney River, Huston River, Ironwood Channel, Jim Foot Key, Johnson Key, Lake Key, Lignumvitae Basin, Little Blackwater Sound, Little Madeira Bay, Long Sound, Lostmans River, Manatee Bay, McCormick Creek, Miami-Dade County, Middle Key Basin, Military Canal, Monroe County, Monroe Lake, Mowry Canal, Nest Key, North Canal, North Prong Otter Creek, North River, Old Dan Bank, Old Sweat Bank, Otter Creek, Oyster Bay, Park Key, Pass Key, Pavillion Key, Pelican Bank, Peterson Keys, Ponce de Leon Bay, Porjoe Key, Princeton Canal, Prong Creek, Rabbit Key, Rabbit Key Basin, Rankin Basin, Rankin Lake, Roberts River, Rodgers River Bay, Russell Key, SW Big Cypress, Samphire Keys, Schooner Bank, Shark River, Shell Creek, Sid Key, South East Coast, Sprigger Bank, Spy Key, Storter Bay, Tarpon Bay, Taylor Creek, Trout Creek, US, USGS Science Data Catalog (SDC), United States, Whipray Basin, White Water Bay, biology, biota, climatologyMeteorologyAtmosphere, conservation paleobiology, diatoms, ecology, ecology, ecosystem history, environment, estuary, foraminifera, gastropods, geography, geologic core, geology, geoscientificInformation, inlandWaters, molluscs, mollusks, oceans, ostracodes, paleoecology, paleontology, pelecypods, pollen, salinity, sedimentology, vegetation, Fewer tags 1955 DEM for Sleeping Bear Dunes National Lakeshore This raster dataset describes elevation values, in meters (m), in Sleeping Bear Dunes National Lakeshore in 1955. The 1955 DEM was produced from historical aerial imagery acquired on April 1, 1955 at a flying height of 8,500 ft (1:17,000). Structure from motion (SfM) analysis of this imagery produced a 0.88 m DEM, which was edited and resampled to 1 m. Tags: Michigan, elevation, geomorphology, geospatial datasets, topography 40Ar/39Ar data from the Old Mine Park area, Trumbull, Connecticut This data release includes 40Ar/39Ar data from the U.S. Geological Survey for samples from Old Mine Park Area, Trumbull, Connecticut. Mineral samples were collected by Robert Wintsch and Harold Moritz. Potassium-bearing mineral grains were separated from the bulk sample and analyzed by argon geochronology at the U.S. Geological Survey Bascom ARgon Dating (BARD) Laboratory in Reston, Virginia. The data provide age constraints on units in the relevant geologic mapping area. Categories: Data; Tags: 40Ar/39Ar, Bascom ARgon Dating Laboratory, Connecticut, Economic Geology, FBGC, All tags... Fairfield County, Geochemistry, Mineral Resources, Structural Geology, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), geologic mapping, Fewer tags Feature dataset GeologicMap, part of Geologic Map of Northeasternmost Tennessee, and Adjacent Parts of Virginia and North Carolina The geology of an area of 660 square miles mostly in the northeastern corner of Tennessee and small adjacent areas in Virginia and North Carolina is the subject of this report. The region lies principally in the Unaka province, with extensions northwestward into the Appalachian Valley and southwestward into the Blue Ridge province. The report combines results of surveys made between 1941 and 1953 by the U. S. Geological Survey, the Tennessee Division of Geology, and the Tennessee Valley Authority, and is published in cooperation with the Tennessee Division of Geology. Northeasternmost Tennessee is a region of widespread mineralization and was formerly important for mineral production. Iron, manganese, and bauxite... Tags: Abingdon, Alluvium, Andesite, Argillite, Arkose, All tags... Austinville, Baldwin Gap, Blue Ridge, Bluff City, Bristol, Cambrian, Carbonate rock, Carter, Cenozoic, Chert, Conglomerate, Conococheague Limestone, Damascus, Doe, Dolostone, Economic Geology, Elbrook Dolomite, Elizabethton, Elk Mills, Elk Park, Erwin, Erwin Formation, Flaser gneiss, Gneiss, Granite, Granodiorite, Gravel, Grayson, Graywacke, Greenstone, Hampton, Hampton Formation, Holston Valley, Honaker Dolomite, Iron Mountain Gap, Iron Mountains, Jonesboro Limestone, Keenburg, Konnarock, Latite, Laurel Bloomery, Lenoir Limestone, Limestone, Lucy Creek, Lynn Mountain, Migmatite, Mill Creek, Mount Rogers volcanic group, Mountain City, Mylonite, Nolichucky Shale, North Carolina, Ordovician, Paleozoic, Phyllite, Phyllonite, Precambrian, Quartz monzonite, Quartzite, Quaternary, Rhyolite, Rome Formation, Sandstone, Schist, Shady Dolomite, Shady Valley, Shale, Sherwood, Siltstone, Slate, South Holston Lake, Stone Mountain, Stratigraphy, Structural Geology, Talus, Tennessee, Tertiary, Tuff, USGS Science Data Catalog (SDC), Unicoi Formation, Valley Forge, Virginia, Watauga, White Rocks Mountain, Zionville, iron, manganese, metamorphic rocks, metamorphism (geological), plutonic rocks, sedimentary rocks, unconsolidated deposits, volcanic rocks, zinc, Fewer tags Database of historical anthracite coal-mining infrastructure at the northern end of the Lackawanna syncline, Wayne, Susquehanna, and Lackawanna counties, Pennsylvania Abandoned railroads and infrastructure from the anthracite coal mining industry are significant features in abandoned mine lands and are an important part of history; however, these features are often lost and masked by the passage of time and the regrowth of forests. The application of modern light detection and ranging (lidar) topographic analysis, combined with ground-truthing "boots on the ground" mapping, enable recovery of the location of these historical features. Waste rock piles and abandoned mine lands from historical mining locally appear as distinct features on the landscape depicted on the percent slope map. Abandoned, and in many places demolished, infrastructure such as breakers, turntables, rail... Tags: Browndale, Canaan, Clifford, Clinton, Economic Geology, All tags... Fell, Forest City, Lackawanna, Lackawanna syncline, Land Use Change, Pennsylvania, Simpson, Susquehanna, USGS Science Data Catalog (SDC), Vandling, Wayne, abandoned mine land, anthracite, breaker, coal, infrastructure, railroad, Fewer tags Photoluminescence Imaging of Whole Zircon Grains on a Petrographic Microscope—An Underused Aide for Geochronologic Studies The refractory nature of zircon to temperature and pressure allows even a single zircon grain to preserve a rich history of magmatic, metamorphic, and hydrothermal processes. Isotopic dating of micro-domains exposed in cross-sections of zircon grains allows us to interrogate this history. Unfortunately, our ability to select the zircon grains in a heavy mineral concentrate that records the most geochronologic information is limited by our inability to predict internal zonation from observations of whole zircon grains. Here we document the use of a petrographic microscope to observe and image the photoluminescence (PL) response of whole zircon grains excited under ultraviolet (UV) light, and the utility of this PL... Categories: Data; Tags: Adirondacks, NY, Beauty Spot, NC, Geochemistry, Geochronology, Sussex County, VA, All tags... USGS Science Data Catalog (SDC), Woodbury, CT, Fewer tags Detailed geologic mapping geodatabase for the Blue Ridge Parkway in Virginia with station point photographs The US Geological Survey, in cooperation with the National Park Service, mapped 35 7.5-minute quadrangles, within a 2-mile-wide+ corridor centered on the Parkway, from BLRI (Blue Ridge Parkway) Mile Post (MP) 0 near Afton, Virginia southward to MP 218 at Cumberland Knob, approximately 1.3 km south of the Virginia – North Carolina State Line. Detailed bedrock geologic mapping for this project was conducted at 1:24,000-scale by systematically traversing roads, trails, creeks, and ridges within and adjacent to the 2-mile-wide+ corridor along the 216.9-mile length of the BLRI in Virginia. Geologic data at more than 23,000 station points were collected during this project (September 2009 – February 2014), with approximately... Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Adney Gap, Air Bellows Gap, Alligator Back Formation, Antietam Formation, Ashe Formation, All tags... Ashville, Bald Mountain, Balsam Gap, Beacon Heights, Bear Den, Bear Mountain Gap, Bearwallow Gap, Bedrock, Beech Gap, Beetree Gap, Benge Gap, Big Island, Big Witch Gap, Biltmore Estate, Blackhorse Gap, Blowing Rock, Blue Ridge Music Center Visitor Center, Blue Ridge Park Visitor Center and Park Headquarters, Blue Ridge Parkway, Bluff Mountain, Bottom Creek Metagranitoid Suite, Buck Creek Gap, Buena Vista, Bull Gap, Carbonate, Cherokee, Cherokee Indian Reservation, Chestoa View, Chilhowee Group, Cold Mountain, Conococheague Formation, Crabtree Falls, Crabtree Faults, Craggy Gardens Visitor Center, Craven Gap, Crossnore, Crossnore Plutonic Suite, Cumberland Knob, Daniel Boone's Trace, Deep Gap, Devils Backbone Overlook, Devils Courthouse, Diabase, Doughton Park, E.B. Jeffress Park, Elbrook Formation, Elk Pasture Gap, Ervin, Ervin, Fallingwater Cascades, Fancy Gap, Flat Rock, Folds, Formation, Fox Hunters Paradise, Geology, George Washington National Forest, Gillespie Gap, Glendale Springs, Gneiss, Graggy Dome, Grandfather Mountain, Grandfather Mountain State Park, Granite, Graveyard Fields, Great Valley Overlook, Green Knob, Greenstone Trail, Groundhog Mountain, Hampton Formation, Harpers Formation, Hawksbill Mountain, Hominy Creek, Humpback Mountain, Humpback Rocks Visitor Center, Indian Gap, Irish Gap, James River, James River Visitor Center and Canal, Jefferson National Forest, Julian Price Memorial Park, Jumpinoff Rock, Lake Powhaten, Laurel Springs, Lineville River, Linville, Linville Falls, Linville Falls Visitor Center, Little Switzerland, Looking Glass Rock Overlook, Lynchburg Group, Mabry Hill, Martinsburg Formation, McKinney Gap, Meadows of Dan, Mesoproterozoic gneisses of the Fries Thrust Sheet, Metabasalt, Metagranitoid, Moses H. Cone Memorial Park and Visitor Center, Mount Jefferson State Park, Mount Mitchell, Mount Mitchell State Park, Mount Pisgah, Museum of North Carolina Minerals Visitor Center, N&W Railroad Overlook, Nantahala National Forest, Normal Fault, North Carolina, North Carolina Arboretum, Northwest Trading Post, Oconalufte Visitor Center, Onion Mountain Overlook, Orchard Gap, Oteen, Otter Creek, Overmountain Victory Nation Historic Trail, Peach Bottom Mountain, Peaks of Otter Metagranitoid, Peaks of Otter Visitor Center, Petites Gap, Pilot Gneiss, Pineola, Pipers Gap, Pisgah National Forest, Poor Mountain, Powell Gap, Price Lake, Puckett Cabin, Purgatory Overlook, Rakes Millpond, Ravens Roost, Reverse Fault, Richland Balsam, Roanoke Mountain, Roanoke River, Roanoke River Gorge, Roanoke Valley Overlook, Rocky Knob, Rocky Knob Visitor Center, Sandy Creek Gneiss, Shady Dolomite, Sharp Top, Sherando Lake, Skyland, Southern End, Staunton River, Stone Mountain State Park, Structure, Sugarloaf Mountain, Swannanoa River, Swift Run Formation, Table Rock Mountain, Terrapin Mountain, The Lump, The Saddle, Thrust Fault, Tunnel Gap, Twenty Minute Cliff, Tye River, Tye River Gap, USGS Science Data Catalog (SDC), Unicoi Formation, Virginia, Virginia Explore Park and Visitor Center, Volunteer Gap, Wagon Road Gap, Watauga River, Waterrock Knob Visitor Center, Wayneboro Formation, Waynesboro, Wayneville, Weverton Formation, Whites Gap Overlook, Wigwarm Falls, Woodlaw, Wrights Creek, Yankee Horse Ridge, Z.B. Vance Birthplace, Fewer tags Community sourced mid-Piacenzian sea surface temperature (SST) data This data set collects, from peer-reviewed research, values of sea surface temperature (SST) that occurred at various sites across the Earth during a brief period of the mid-Piacenzian Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arctic Ocean, Atlantic Ocean, Climatology, Indian Ocean, Marine Geology, All tags... Pacific Ocean, Pliocene, Southern Ocean, Stratigraphy, USGS Science Data Catalog (SDC), paleoclimatology, paleoecology, paleogeography, sea surface temperature, Fewer tags Point locations of brick kilns in Kabul, Afghanistan, derived from 1965, 2004, 2011, and 2018 satellite imagery This dataset was created as part of the USGS Afghanistan Project investigating artisanal and small-scale mining activity. Clay mining for brick making purposes represents a small but important segment of the mineral extraction industry in Kabul, Afghanistan. Over the past several decades Kabul has grown from a relatively small city, with a 1970 population of less than 500,000 people, to a sprawling urban center with approximately 4.2 million people in 2020 (CIA 2020). Population growth has expanded the need for housing, commercial, and industrial buildings, and associated infrastructure. This has greatly increased demand for bricks, the primary construction material of the region. In this study, very high-resolution... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Afghanistan, Geography, Loess, Mineral Resources, USGS Science Data Catalog (SDC), All tags... biota, clay deposits, mining and quarrying, Fewer tags Enhanced Terrain Imagery of the Scranton 30 x 60 Minute Quadrangle from Lidar-Derived Elevation Models at 3-Meter Resolution This imagery dataset consists of 3-meter resolution, lidar-derived imagery of the Scranton 30 x 60 minute quadrangle in Pennsylvania. It also covers part of the Delaware River Basin. The source data used to construct this imagery consists of 1-meter resolution lidar-derived digital elevation models (DEMs). The lidar source data were compiled from different acquisitions published between 2017 and 2019 from the Pennsylvania Spatial Data Access (PASDA). The data were processed using geographic information systems (GIS) software. The data is projected in North America Datum (NAD) UTM Zone 18 North. This representation illustrates the terrain as a hillshade with contrast adjusted to highlight local relief according to... Categories: Data; Tags: Delaware River Basin, Geography, Geomorphology, Lidar, USGS Science Data Catalog (SDC), All tags... elevation, imageryBaseMapsEarthCover, lidar, terrain, topography, Fewer tags Database for the Surficial Geologic Map of the Charleston Region, Berkeley, Charleston, Colleton, Dorchester, and Georgetown Counties, South Carolina This database portrays the surface and shallow subsurface geology of the greater Charleston, S.C. region east of 80°30′ west and south of 33°15′ north. The region covers the entirety of Charleston County and portions of Berkeley, Colleton, Dorchester, and Georgetown Counties. Units locally exposed at the surface range in age from middle Eocene to Holocene, but most of the area is covered by Quaternary interglacial deposits. These are, from oldest to youngest, the Okefenokee, Waccamaw(?), Penholoway, Ladson, Ten Mile Hill, and Wando Formations and the Silver Bluff beds. Two cross sections (not included in the database), one running southeast from Harleyville to the coastline on James Island and the other running... Tags: Adam Run fault, Ashepoo River, Ashley Formation, Ashley River, Ashley River fault, All tags... Atlantic Ocean, Awendaw, Back River, Berkeley County, Bethera, Bull Harbor, Captain Sams Inlet, Cenozoic, Chandler Bridge Formation, Charleston, Charleston County, Charleston Harbor, Charleston fault, Clark Sound, College Park, Colleton County, Cooper River, Coosaw River, Copahee Sound, Cordesville, Cottageville, Daniel Island beds (informal), Dawho River, Dorchester, Dorchester County, East Branch Cooper River, Economic Geology, Edisto Beach, Edisto Formation, Edisto Island, Edisto River, Eocene, Esterville Minim Creek Canal, Folly Beach, Folly River, Fort Moultrie, Fort Sumter, Fort Wagner, Four Hole Swamp, Francis Marion National Forest, Geomorphology, Givhans, Goose Creek Limestone, Goose Creek Reservoir, Hamlin Sound, Harleyville, Harleyville Formation, Hollywood, Holocene, Huger, Huttos Lake, Intracoastal Waterway, Island of Palms, Jacksonboro, Jedburg, Johns Island, Kiawah River, Ladson, Ladson Formation, Lake Francis, Lake Merkel, Lake Moultrie, Lincolnville, Marine Geology, Marks Head Formation, Meggett, Miocene, Moncks Corner, Neogene, North Charleston, North Edisto River, North Santee, North Santee River, Okefenokee Formation, Oligocene, Open-File Report, Paleogene, Parachucla Formation, Parkers Ferry Formation, Penholoway Formation, Phanerozoic, Pinopolis, Pleistocene, Pliocene, Quaternary, Ravenel, Raysor Formation, Ridgeville, Saint Helena Sound, Santee Limestone, Seabrook Island, Sedimentology, Shulerville, Silver Bluff beds, South Edisto River, South Santee River, Stono Inlet, Stono River, Stratigraphy, Summerville, Summerville fault, Tail Race Canal, Ten Mile Hill Formation, Tertiary, Tibwin, Toogoodoo Creek, Tupelo Bay Formation Cross Member, Tupelo Bay Formation Pregnall Member, USGS Science Data Catalog (SDC), Waccamaw(?) Formation, Wadmalaw, Wadmalaw River, Wando, Wando Formation, West Branch Cooper River, Whiteville, Woodstock fault, alluvial terrace, alluvium, beach sand, bedrock geologic units, biostratigraphy, carbonate rock, cartography, clay deposits, clay or mud, climatologyMeteorologyAtmosphere, colluvium, earth sciences, earthquakes, economic geology, environment, fault zones, faults, flood plain, geography, geologic contacts, geologic history, geologic maps, geologic processes, geology, geomorphology, geoscientificInformation, geospatial datasets, gravel, gravel deposits, human impacts, lake or marine sediment, limestone, lithostratigraphy, maps and atlases, marine geology, mud flat, natural rock formations, nonmetallic mineral resources, peat, rocks and deposits, sand, sand deposits, sedimentary rocks, sedimentation, sedimentology, silt, stratigraphy, structural geology, structure contours, study areas, surficial geologic units, terrace, time periods, unconformities, unconsolidated deposits, unconsolidated material, Fewer tags 40Ar/39Ar data from the Janub Metamorphic Complex, Southern Jordan This data release includes 40Ar/39Ar collected at the U.S. Geological Survey for samples from the Janub Metamorphic Complex in Southern Jordan. Rock samples were collected by Hind Ghanem of the University of Jordan. Muscovite-rich microcores were drilled from a polished thick section of a deformed granitoid and analyzed by argon geochronology at the U.S. Geological Survey Bascom ARgon Dating (BARD) Laboratory in Reston, Virginia. The 40Ar/39Ar data constrain the timing of formation of the foliation defined by muscovite. Categories: Data; Tags: 40Ar/39Ar, Arabian Shield, Bascom Argon Dating Laboratory, FBGC, Florence Bascom Geoscience Center, All tags... Geochemistry, Geochronology, Jordan, Structural Geology, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), geoscientificInformation, Fewer tags 40Ar/39Ar data from the Gidami gold deposit, Egypt This data release includes 40Ar/39Ar data from the U.S. Geological Survey for samples from the Gidami gold deposit in the Eastern Desert of Egypt. Rock samples were collected by Basem Zoheir--Benha University/University of Kiel. Potassium-bearing mineral grains were separated from the bulk sample and analyzed by argon geochronology at the U.S. Geological Survey Bascom ARgon Dating (BARD) Laboratory in Reston, Virginia. The data constrain the timing of gold mineralization in the Gidami gold deposit. Categories: Data; Tags: 40Ar/39Ar, Bascom Argon Dating Laboratory, Economic Geology, Egypt, FBGC, All tags... Geochemistry, Geochronology, Gidami, Mineral Resources, Structural Geology, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), biota, Fewer tags Electron microprobe analyses of feldspars and petrographic, geochemical, and geochronologic data from the Hawkeye Granite Gneiss and Lyon Mountain Granite Gneiss in the Adirondacks of New York (ver. 2.0, May 2023) Iron oxide-apatite (IOA) deposits of the Adirondack Mountains of New York locally contain elevated REE concentrations (e.g. Taylor and others, 2019). Critical to evaluating resource potential is understanding the genesis of the IOA deposits that host the REE-rich minerals. As part of this effort, the U.S. Geological Survey (USGS) is conducting bedrock geologic mapping, geochronology, geochemistry, and geophysics in the region. Published and ongoing research demonstrates the spatial association of IOA deposits with the Lyon Mountain Granite Gneiss (LMG), so understanding the relationship of the LMG to the IOA deposits is important for resource evaluation—however the age and origin of the LMG remain contentious. As... Categories: Data, Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Adirondack Mountains, Dannemora, Hawkeye, Keene, Lyon Mountain, All tags... Lyonsdale, New York, USGS Science Data Catalog (SDC), chemical analysis, electron probe microanalysis, geochemistry, geoscientificInformation, mineral resources, mineralogy, Fewer tags Density raster of caves in Monroe County, West Virginia Monroe County, in southeastern West Virginia, hosts world-class karst within carbonate units of Mississippian and Ordovician age. There are at least 412 known caves in the county. Location data for these caves were collected from the West Virginia Speleological Survey (WVASS) Bulletin 22 (Dasher, 2019). Point features were created in ArcGIS Pro for each cave location and were used to make a point density raster. This raster displays the number of cave points per square kilometer. Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Geomorphology, Hydrology, Monroe County, USGS Science Data Catalog (SDC), United States, All tags... West Virginia, geologic maps, geology, geomorphology, geospatial analysis, hydrogeology, karst, maps and atlases, sinkhole formation, Fewer tags UAS-borne Lidar 0.5m DTM for parts of Vicksburg National Military Park - December 2022 In December 2022, the U.S. Geological Survey (USGS) flew uncrewed aerial systems (UAS) to collect very high-resolution imagery and lidar data of Vicksburg National Military Park to address areas of substantial landslide hazard within the park. The fine spatial resolution and high accuracy of this data are needed to fully characterize and quantify landslides and to understand the potential for continued landslide activity in other areas of the park. UAS flights were conducted by the USGS National Uncrewed Systems Office (NUSO). This data release publishes the 0.5m DTM created from the UAS-borne lidar data collected in December 2022. Tags: Geomorphology, Hydrology, Remote Sensing, Soil Sciences, USGS Science Data Catalog (SDC), All tags... Vicksburg National Military Park, study areas, Fewer tags Enhanced Terrain Imagery of the Roanoke 30 x 60 Minute Quadrangle from Lidar-Derived Elevation Models at 3-Meter Resolution This imagery dataset consists of 3-meter resolution, lidar-derived imagery of the Roanoke 30 x 60 minute quadrangle in Virginia. It also covers a part of the Appalachian Basin Province. The source data used to construct this imagery consists of 1-meter resolution lidar-derived digital elevation models (DEMs). The lidar source data were compiled from different acquisitions published between 2017 and 2021 and downloaded from the USGS National Map TNM Download. The data were processed using geographic information systems (GIS) software. The data spatial reference is the WGS 1984 geographic coordinate system. This representation illustrates the terrain as a hillshade with contrast adjusted to highlight local relief... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Raster; Tags: Roanoke, USGS Science Data Catalog (SDC), USGS:6466397bd34ec11ae4a79bb4, Virginia, digital elevation models, All tags... elevation, image collections, lidar, topography, Fewer tags 1 2 3 4 5 ... 7 »