Research Geophysicist
Geology, Geophysics, and Geochemistry Science Center
Email:
ashah@usgs.gov
Office Phone:
303-236-1218
Fax:
303-236-1425
ORCID:
0000-0002-3198-081X
Location
DFC Bldg 20
Box 25046
Denver Federal Center
Denver
, CO
80225-0046
US
Supervisor:
Paul A Bedrosian
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This dataset provides location information for the seismic reflection line CRmv across Crowleys Ridge in the New Madrid seismic zone, central US. The seismic reflection data are interpreted and discussed in the associated publication
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Airborne geophysical surveys were conducted in the eastern Adirondacks from Dec. 7, 2015 - Dec. 21, 2015, by Goldak Airborne Surveys. The area was flown along a draped surface with a nominal survey height above ground of 200 meters. The flight line spacing was 250 meters for traverse lines and 2500 meters for control lines. Here we present downloadable magnetic and radiometric (gamma spectrometry) data from those surveys as image (Geotiff) and flight line data (csv format). Background The Eastern Adirondacks region was known for iron mining in the 1800's and 1900's but it also contains deposits of rare earth minerals. Rare earth minerals are used in advanced technology such as in cell phones, rechargeable batteries...
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Adirondack Mountains,
CGGSC,
Crustal Geophysics and Geochemistry Science Center,
Essex County,
Geophysics, All tags...
MRP,
Mineral Resources,
Mineral Resources Program,
New York,
Remote Sensing,
USGS Science Data Catalog (SDC),
United States,
aeromagnetic maps,
aeromagnetic surveying,
aeroradiometric surveying,
airborne magnetics,
economy,
geologic mapping,
geologic maps,
geoscientificInformation,
magnetic anomaly maps,
magnetic field (earth),
magnetics,
mineral resources,
mineral resources,
subsurface imaging,
subsurface maps, Fewer tags
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Magnetic susceptibility was measured on outcropping rock in the eastern Adirondack Mountains, New York. A Terraplus KT-20 was used for the measurements. The corresponding rock type was identified using standard field geologic approaches. Locations of the outcrops were determined using a handheld GPS.
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Thirty-four ore, twenty-nine mine waste, seven host rock, two pegmatite, and one slag sample were collected from iron oxide-apatite (IOA) mines in the eastern Adirondack Highlands near Mineville and Ticonderoga, New York, from March 2016 to August 2018. The waste pile samples included twenty-five samples collected from rubble-sized mine waste piles and four samples from processed tailings piles. The ore from historic iron mines of the eastern Adirondack Highlands, New York, contain abundant quantities of rare earth element (REE)-bearing apatite crystals. These apatite crystals are especially enriched in Y, La, Ce, and Nd. In-ground ore, mine waste piles, and tailings piles could contain apatite...
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Adirondack Mountains,
Energy Resources,
Geochemistry,
ICP-MS,
ICP-OES, All tags...
Mineville,
New York,
Ticonderoga,
USGS Science Data Catalog (SDC),
WDXRF,
apatite,
geochemistry,
iron,
mine tailings,
mine waste,
mineral resources,
rare earth elements,
tailing piles, Fewer tags
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Airborne magnetic data are provided here as part of the data release, 'Airborne magnetic and radiometric survey, Virginia and North Carolina Fall Zone, 2021.' This website includes the processed aeromagnetic data provided in an ascii .csv file and a geoTIFF image showing the total magnetic intensity. The contractor report is available on the parent page.
Categories: Data;
Types: Downloadable,
GeoTIFF,
Map Service,
Raster;
Tags: AASG,
Amelia County,
Association of State Geologists,
Bertie County,
Brunswick County, All tags...
Caroline County,
Charles City County,
Chesterfield County,
Colonial Heights County,
Cumberland County,
Dinwiddie County,
Downloadable,
EHP,
Earth Mapping Resources Initiative,
EarthMRI,
Earthquake Hazards Program,
Edgecombe County,
Emporia County,
Fluvanna County,
GGGSC,
GeoTIFF,
Geology, Geophysics, and Geochemistry Science Center,
Goochland County,
Greensville County,
Halifax County,
Hanover County,
Henrico County,
Hopewell County,
Louisa County,
MRP,
Map Service,
Martin County,
Mineral Resources Program,
NCGMP,
Nash County,
National Cooperative Geologic Mapping Program,
North Carolina,
Northampton County,
Nottoway County,
Petersburg,
Petersburg County,
Powhatan County,
Prince George County,
Rasters,
Richmond,
Richmond City County,
Rocky Mount,
Southampton County,
Sussex County,
U.S. Geological Survey,
USGS,
United States,
Virginia,
Warren County,
aeromagnetic surveying,
aeroradiometric surveying,
airborne geophysical survey,
economy,
economy,
geophysics,
geoscientific information,
geoscientificInformation,
geospatial datasets,
horizontal magnetic gradiometry,
horizontal magnetic gradiometry,
magnetic field (earth),
potassium,
radon,
thorium,
uranium, Fewer tags
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