Research Geophysicist
Geology, Geophysics, and Geochemistry Science Center
Email:
bdrenth@usgs.gov
Office Phone:
303-236-1827
Fax:
303-236-1425
ORCID:
0000-0002-3954-8124
Supervisor:
Paul A Bedrosian
|
This data release provides digital flight line data for a high-resolution airborne magnetic survey over parts of northwestern Minnesota near the town of Mentor. The airborne survey was funded by the Earth Mapping Resources Initiative and was designed to meet complementary needs related to geologic mapping and characterization of mineral resource potential. A total of 40,139-line km of magnetic data were acquired over an irregular-shaped area of 9140 km2. Data were collected from a fixed-wing aircraft flown at mean terrain clearance of 120 meters (m) above topography along N-S flight lines spaced at 250 m intervals. Tie lines were flown in an E-W direction every 2500 m. Data were collected by EDCON-PRJ and NV5 Geospatial,...
Categories: Data;
Types: Downloadable,
GeoTIFF,
Map Service,
Raster;
Tags: Becker County,
Clay County,
Clearwater River,
Earth Mapping Resources Initiative,
EarthMRI, All tags...
GGGSC,
Geology, Geophysics, and Geochemistry Science Center,
MRP,
Marsh River,
Marshall County,
Mentor Complex,
Mineral Resources Program,
Minnesota,
Norman County,
Pennington County,
Polk County,
Red Lake County,
Red Lake River,
Silver River,
Thief River,
Thief River Falls,
U.S. Geological Survey,
USA,
USGS,
United States,
United States of America,
Wild Rice River,
aeromagnetic surveying,
airborne geophysical survey,
economy,
geophysics,
geoscientificInformation,
geospatial datasets,
horizontal magnetic gradiometry,
magnetic field (earth),
northwestern Minnesota,
vertical magnetic gradient, Fewer tags
|
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,
Aeroradiometric survey,
Airborne geophysical survey,
Association of State Geologists,
Boulder Mountains, All tags...
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,
Mineral Resources,
Mineral Resources Program,
Montana,
National Cooperative Geologic Mapping Program,
Potassium,
Powell County,
Prickly Pear Creek,
Sedimentology,
Structural Geology,
Thorium,
Twin Bridges,
U.S. Geological Survey,
USA,
USGS,
United States,
United States of America,
Uranium,
Whitetail Valley,
biota, Fewer tags
|
Gravity data were collected from 2006 through 2015 to assist in mapping subsurface geology in the southern San Luis Basin, northern New Mexico. This data release provides principal facts for 566 new gravity stations that were acquired to fill in gaps in the existing public gravity data coverage.
Categories: Data;
Types: Citation,
Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Geophysics,
Questa,
Rio Arriba County,
Taos,
Taos County, All tags...
Tres Piedras,
USGS Science Data Catalog (SDC),
bouguer anomaly,
free-air anomaly,
geoscientificInformation,
gravimeter measurement,
gravitational field (earth),
isostatic anomaly, Fewer tags
|
This dataset supports the publication “Geophysical insights into Paleoproterozoic tectonics along the southern margin of the Superior Province, central Upper Peninsula, Michigan, USA.” At a 1:100,000 scale, these data are in a geologic database in the Geologic Map Schema (GeMS) which includes spatial feature classes and non-spatial tables that contain the geologic information presented in figure 8 and S3 of appendix A, the supplemental map of the publication. Geologic map of the central Upper Peninsula, Michigan
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Alger County,
Ashland County,
Baraga County,
Bayfield County,
Delta County, All tags...
Dickinson County,
Economic Geology,
Florence County,
Forest County,
Geography,
Geomorphology,
Geophysics,
Glaciology,
Gogebic County,
Houghton County,
Iron County,
MI,
Marinette County,
Marquette County,
Menominee County,
Michigan,
Mineral Resources,
Oneida County,
Ontonagon County,
Price County,
Sawyer County,
Stratigraphy,
Structural Geology,
USGS Science Data Catalog (SDC),
Vilas County,
WI,
Wisconsin,
bedrock geologic units,
data services,
geographic information systems,
geologic maps,
geology,
geospatial datasets,
structural geology, Fewer tags
|
Gravity data were collected from 2016 through 2018 to assist in mapping subsurface geology in northeastern Iowa. This data release provides principal facts for 1080 new gravity stations that were acquired to supplement existing public gravity data coverage. References cited: Blakely, R.J., 1995, Potential Theory in Gravity and Magnetic Applications, Cambridge University Press, 441 p. International Association of Geodesy, 1971, Geodetic reference system 1967: International Association of Geodesy Special Publication No. 3, 116 p. Morelli, C., ed., 1974, the International gravity standardization net 1971: International Association of Geodesy Special Publication no.4, 194 p. Plouff, Donald, 1977, Preliminary documentation...
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Benton County,
Black Hawk County,
Bremer County,
Buchanan County,
Chickasaw County, All tags...
Clayton County,
Delaware County,
Fayette County,
Geophysics,
Iowa County,
Johnson County,
Jones County,
Linn County,
Mineral Resources,
Tama County,
USGS Science Data Catalog (SDC),
bouguer anomaly,
free-air anomaly,
geoscientificInformation,
gravimeter measurement,
gravitational field (earth),
isostatic anomaly, Fewer tags
|
View more...
|