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Filters Date Range Past year (2) Past month (0) Past week (0) Past day (0) Custom range... To   Search Types Downloadable (7) GeoTIFF (7) Map Service (7) Raster (7) OGC WFS Layer (1) OGC WMS Layer (1) OGC WMS Service (1) Contacts Anne E. McCafferty U.S. Geological Survey - ScienceBase April D. Allen Langhans Benjamin J. Drenth Anjana K Shah More... Categories Data (7) Data Release - Revised (1) Tag Types Place (7) Theme (7) Harvest Set (1) Tag Schemes USGS Geographic Names Information System (GNIS), https://geonames.usgs.gov (2) None (5) USGS Thesaurus (7) Geographic Names Information System (1) Geographic Names Information System (GNIS) (3) none (2) Common geographic areas (6) More... View Results as: JSON ATOM CSV

Airborne magnetic data, Munsungun region in northern Maine, 2021 Airborne magnetic data are provided here as part of the data release, "Airborne magnetic and radiometric survey, Munsungun Region, northern Maine, 2021." This website includes the processed aeromagnetic data provided in an ascii .csv file and a geoTIFF image showing the anomalous magnetic field. The contractor report is available on the parent page. Data for this survey were collected and processed by Sander Geophysics under contract with the USGS as part of the Earth Mapping Resources Initiative (Earth MRI) using a fixed wing aircraft with a magnetometer mounted in a tail stinger and a fully calibrated gamma ray spectrometer, data were collected along northwest-southeast flight lines spaced 250 meters (m) apart... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Allagash Lake, Aroostook County, Aroostook River, Bever Brook, Big Machias Lake, All tags... Carr Pond, Chamberlain Lake, Chesuncook Lake, Clear Lake, Eagle Lake, Earth Mapping Resources Initiative, EarthMRI, Fish River, Fish River Lake, Geology, Geophysics, and Geochemistry Science CenterGGGSC, Gero Island, Glazier Brook, Harrow Lake, Harvey Pond, Haymock Lake, Little Madawaska River, Longley Pondk, Loon Lake, MRP, Machias River, Maine, Mineral Resources Program, Mud Lake, Munsungun Region, Northern Maine, Penobscot County, Piscataquis County, Pleasant Lake, Portage Lake, Pratt Lake, Priestly Lake, Rocky Brook, Round Pond, Rowe Lake, Saint Froid Lake, Shallow Lake, Somerset County, Spider Lake, Squa Pan Lake, Square Lake, Third Lake, Twentyfive Mile Brook, Twin Lake, U.S. Geological Survey, USA, USGS, United States, United States of America, Webster Brook, Webster Lake, aeromagnetic surveying, aeroradiometric surveying, airborne geophysical survey, economy, geophysics, geoscientificInformation, geospatial datasets, horizontal magnetic gradiometry, magnetic field (earth), potassium, thorium, uranium, vertical magnetic gradient, Fewer tags Airborne magnetic survey, Boulder Batholith region, Montana, 2022 This data release provides digital flight line data for a high-resolution airborne magnetic survey over parts of Montana in the vicinity of the Boulder Batholith. The airborne survey was jointly funded by the Earth Mapping Resources Initiative and Kennecott Exploration Company. The survey was designed to meet complementary needs related to geologic mapping and characterization of mineral resource potential. A total of 34,041-line km of magnetic and radiometric data were acquired over an irregular-shaped area of 6178 km2. Data were collected from a helicopter flown at a nominal terrain clearance of 100 meters (m) above topography along E-W flight lines spaced at 200 m intervals. Tie lines were flown in an N-S direction... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: AASG, Aeromagnetic survey, Airborne geophysical survey, Association of State Geologists, Boulder Mountains, All tags... Boulder River, Broadwater County, Butte, Crow Creek, Earth Mapping Resources Initiative, EarthMRI, Economic Geology, Economy, Elkhorn Mountains, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Geophysics, GeoscientificInformation, Geospatial datasets, Helena, Jefferson County, Lewis and Clark County, Little Blackfoot River, MRP, Magnetic field (earth), Mineral Resources, Mineral Resources Program, Montana, Montana, National Cooperative Geologic Mapping Program, Powell County, Prickly Pear Creek, Sedimentology, Structural Geology, Twin Bridges, U.S. Geological Survey, USA, USGS, United States, United States of America, Whitetail Valley, Fewer tags Airborne radiometric data, Munsungun region in northern Maine, 2021 Airborne radiometric data are provided here as part of the data release "Airborne magnetic and radiometric survey, Munsungun Region, northern Maine, 2021." This website includes the processed aeroradiometric digital flight line data (gamma spectrometry for K, U and Th) provided in an ascii .csv file and geoTIFF images showing a ternary image of relative K, U and Th and individual K, U, and Th values. Radiometric spectra are provided in ascii and binary formats within the contractor package on the parent page. The contractor report is also available on the parent page. Data for this survey were collected and processed by Sander Geophysics under contract with the USGS as part of the Earth Mapping Resources Initiative... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Allagash Lake, Aroostook County, Aroostook River, Bever Brook, Big Machias Lake, All tags... Carr Pond, Chamberlain Lake, Chesuncook Lake, Clear Lake, Eagle Lake, Earth Mapping Resources Initiative, EarthMRI, Fish River, Fish River Lake, Geology, Geophysics, and Geochemistry Science CenterGGGSC, Gero Island, Glazier Brook, Harrow Lake, Harvey Pond, Haymock Lake, Little Madawaska River, Longley Pondk, Loon Lake, MRP, Machias River, Maine, Mineral Resources Program, Mud Lake, Munsungun Region, Northern Maine, Penobscot County, Piscataquis County, Pleasant Lake, Portage Lake, Pratt Lake, Priestly Lake, Rocky Brook, Round Pond, Rowe Lake, Saint Froid Lake, Shallow Lake, Somerset County, Spider Lake, Squa Pan Lake, Square Lake, Third Lake, Twentyfive Mile Brook, Twin Lake, U.S. Geological Survey, USA, USGS, United States, United States of America, Webster Brook, Webster Lake, aeromagnetic surveying, aeroradiometric surveying, aeroradiometric surveying, airborne geophysical survey, economy, geophysics, geoscientificInformation, geospatial datasets, magnetic field (earth), potassium, thorium, uranium, Fewer tags Airborne radiometric survey, Boulder Batholith region, Montana, 2022 This data release provides digital flight line data for a high-resolution airborne radiometric survey over parts of Montana in the vicinity of the Boulder Batholith. The airborne survey was jointly funded by the Earth Mapping Resources Initiative and Kennecott Exploration Company. The survey was designed to meet complementary needs related to geologic mapping and characterization of mineral resource potential. A total of 34,041-line km of magnetic and radiometric data were acquired over an irregular-shaped area of 6178 km2. Data were collected from a helicopter flown at a nominal terrain clearance of 100 meters (m) above topography along E-W flight lines spaced at 200 m intervals. Tie lines were flown in an N-S... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: AASG, Aeromagnetic survey, Aeroradiometric survey, Airborne geophysical survey, Association of State Geologists, All tags... Boulder Mountains, Boulder River, Broadwater County, Butte, Crow Creek, Deerlodge National Forest, Earth Mapping Resources Initiative, EarthMRI, Economic Geology, Elkhorn Mountains, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Geophysics, Geospatial datasets, Helena, Helena National Forest, Jefferson County, Lewis and Clark County, Little Blackfoot River, MRP, Magnetic field (earth), Mineral Resources, Mineral Resources Program, Montana, Montana, National Cooperative Geologic Mapping Program, Potassium, Powell County, Prickly Pear Creek, Sedimentology, Structural Geology, Thorium, Twin Bridges, U.S. Geological Survey, USA, USGS, USGS:643ebd2bd34ee8d4ade5db65, United States, United States of America, Uranium, Whitetail Valley, biota, Fewer tags Radiometric data The airborne radiometric data are provided here as part of the data release, Airborne magnetic and radiometric survey, southeast Missouri and western Illinois, 2018-2019. The radiometric data include the processed aeroradiometric data provided by the contractor and geoTIFFs showing the potassium (K.tif), uranium (eU.tif), and thorium (eTh.tif) content. This data release provides digital flight line data for a high-resolution horizontal magnetic gradient and radiometric survey over an area of southeast Missouri and western Illinois. The survey represents the first airborne geophysical survey conducted as part of the U.S. Geological Survey (USGS) Earth Mapping Resource Initiative (Earth MRI) effort (Day, 2019). Earth... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Earth Mapping Resources Initiative, EarthMRI, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Illinois, All tags... Ironton, MRP, Mineral Resources Program, Missouri, aeromagnetic surveying, aeroradiometric surveying, airborne geophysical survey, economy, geophysics, geoscientificInformation, geospatial datasets, horizontal magnetic gradiometry, potassium, thorium, uranium, Fewer tags An Updated Vs30 Map for California with Geologic and Topographic Constraints (ver. 2.0, July 2022) This data release provides a map of the time-averaged shear-wave velocity in the upper 30 m (Vs30) for California using the method described by Thompson and others (2014). There are two adjustments to the algorithm described by Thompson and others (2014), which is built on the geology-based Vs30 map by Wills and Clahan (2006). In this data release, we use the Wills and others (2015) updated geology-based Vs30 map. The second change is that we have adjusted the kriging procedure so that measured Vs30 values do not affect the predictions across distinctly different geologic units. July 2022 Update (ver. 2.0) Resolution is now 3 arcseconds instead of 7.5 arcseconds Fixed a code error that prevented some of the Vs30... Categories: Data, Data Release - Revised; Types: Downloadable, GeoTIFF, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Raster; Tags: California, Earthquake Hazards Program, GHSC, Geologic Hazards Science Center, USGS, All tags... USGS Science Data Catalog (SDC), United States, earth science, earthquake hazard, geophysics, seismic hazard, seismology, tectonic, Fewer tags Magnetic data The airborne magnetic data are provided here as part of the data release, Airborne magnetic and radiometric survey, southeast Missouri and western Illinois, 2018-2019. The magnetic data include the processed aeromagnetic data provided by the contractor and a geoTIFF showing the total magnetic intensity (TMI) in nanoTeslas. This data release provides digital flight line data for a high-resolution horizontal magnetic gradient and radiometric survey over an area of southeast Missouri and western Illinois. The survey represents the first airborne geophysical survey conducted as part of the U.S. Geological Survey (USGS) Earth Mapping Resource Initiative (Earth MRI) effort (Day, 2019). Earth MRI is a cooperative effort... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Earth Mapping Resources Initiative, EarthMRI, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Illinois, All tags... Ironton, MRP, Mineral Resources Program, Missouri, aeromagnetic surveying, aeroradiometric surveying, airborne geophysical survey, economy, geophysics, geoscientificInformation, geospatial datasets, horizontal magnetic gradiometry, Fewer tags