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Shallow soil characteristics were mapped near Shellmound, Mississippi, using the DualEM 421 electromagnetic sensor in October 2018. Data were acquired by towing the DualEM sensor on a wheeled cart behind an ATV, with the sensor at a height of 0.432 meters (m) above the ground surface. Approximately 175 line-kilometers of data were acquired over an area of nearly four square kilometers, with 25 m separation between survey lines. Data were manually edited for noise sources such as powerlines or other buried structures, and averaged to regular output soundings every 5 m along survey lines. This data release contains the processed data that have been averaged and culled to produce final resistivity models. Digital data...
Categories: Data;
Tags: GGGSC,
Geology, Geophysics, and Geochemistry Science Center,
Leflore County,
MRVA,
Mississippi, All tags...
Mississippi Alluvial Plain,
Mississippi River Valley Alluvial aquifer,
Shellmound,
Tallahatchie River,
electromagnetic surveying,
electromagnetics,
engineering sciences,
environment,
geophysics,
geoscientificInformation,
groundwater,
hydrogeology,
resistivity,
water resources, Fewer tags
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This dataset includes audio-magnetotelluric (AMT) sounding data collected in August 2017 in the Buffalo River watershed of northern Arkansas by the U.S. Geological Survey (USGS). Along with geologic mapping, the USGS used AMT data at 6 sites along a southwest-northeast profile of about 7 kilometers across the inferred northeastern margin of the Bear Creek uplift within the southern Ozark Dome to better constrain the buried, northeastern margin of the Bear Creek uplift.
Tags: AMT,
Arkansas,
Buffalo River,
GGGSC,
GPS measurement, All tags...
Geology, Geophysics, and Geochemistry Science Center,
MRP,
MT,
Mineral Resources Program,
Newton County,
apparent resistivity,
audiomagnetotelluric,
economy,
electric field (earth),
geophysics,
geoscientificInformation,
impedance,
impedance phase,
impedance strike,
magnetic field (earth),
magnetotelluric,
magnetotelluric surveying,
sounding,
tipper, Fewer tags
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This dataset includes audiomagnetotelluric (AMT) sounding data collected in July 2018 in the Silverton Caldera complex, Colorado, in the Southern Rocky Mountain Volcanic Field, by the U.S. Geological Survey (USGS). Along with geologic mapping, airborne magnetics, airborne electromagnetics, and magnetotellurics, the USGS collected AMT data at 24 sites along four profiles ranging from 3 to 6 kilometers in length across the north-western structural margin of the Silverton caldera in Mineral Basin (MB01-MB05), across the south-eastern margin of the caldera along Cunningham Creek (CC01-CC05), within the caldera in Eureka Graben (EG01-EG05), and within the caldera along upper Cement Creek near the Gold King mine (GK01-GK09).
Tags: "San Juan" County,
AMT,
Colorado,
GGGSC,
GPS measurement, All tags...
Geology, Geophysics, and Geochemistry Science Center,
MRP,
MT,
Mineral Resources Program,
Silverton,
apparent resistivity,
audiomagnetotelluric,
economy,
electric field (earth),
geophysics,
geoscientificInformation,
impedance,
impedance phase,
impedance strike,
magnetic field (earth),
magnetotelluric,
magnetotelluric surveying,
sounding,
tipper, Fewer tags
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This dataset includes audiomagnetotelluric (AMT) sounding data collected in July 2018 in the Silverton Caldera complex, Colorado, in the Southern Rocky Mountain Volcanic Field, by the U.S. Geological Survey (USGS). Along with geologic mapping, airborne magnetics, airborne electromagnetics, and magnetotellurics, the USGS collected AMT data at 24 sites along four profiles ranging from 3 to 6 kilometers in length across the north-western structural margin of the Silverton caldera in Mineral Basin (MB01-MB05), across the south-eastern margin of the caldera along Cunningham Creek (CC01-CC05), within the caldera in Eureka Graben (EG01-EG05), and within the caldera along upper Cement Creek near the Gold King mine (GK01-GK09).
Tags: "San Juan" County,
AMT,
Colorado,
GGGSC,
GPS measurement, All tags...
Geology, Geophysics, and Geochemistry Science Center,
MRP,
MT,
Mineral Resources Program,
Silverton,
apparent resistivity,
audiomagnetotelluric,
economy,
electric field (earth),
geophysics,
geoscientificInformation,
impedance,
impedance phase,
impedance strike,
magnetic field (earth),
magnetotelluric,
magnetotelluric surveying,
sounding,
tipper, Fewer tags
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This dataset includes audiomagnetotelluric (AMT) sounding data collected in July 2019 in the Silverton Caldera complex, Colorado, in the Southern Rocky Mountain Volcanic Field, by the U.S. Geological Survey (USGS). Along with geologic mapping, airborne magnetics, airborne electromagnetics, and magnetotellurics, the USGS collected AMT data at 26 sites along five profiles ranging from 2 to 5 kilometers in length: across Red Mountain of the Silverton caldera, within the caldera in Eureka Graben, across the south-eastern margin of the caldera along Arrastra Gulch, across the southern margin of the caldera along the western margin of Kendall Mountain, and across the south-western margin of the caldera along South Fork...
Tags: AMT,
Animas River,
Arrastra Creek,
Colorado,
DOI, All tags...
Department of the Interior,
Eureka Graben,
GGGSC,
GPS measurement,
Geology, Geophysics, and Geochemistry Science Center,
Kendall Mountain,
MRP,
MT,
Mineral Resources Program,
Ouray County,
Red Mountain,
San Juan County,
San Juan County,
San Juan-Silverton Caldera Complex,
Silverton,
South Fork Mineral Creek,
Southern Rocky Mountains,
Southern Rocky Mountains Volcanic Field,
U.S. Forest Service,
U.S. Geological Survey,
USFS,
USGS,
abandoned mine lands cleanup,
abandoned mines and quarries,
apparent resistivity,
audiomagnetotelluric,
economy,
electric field (earth),
geophysics,
geoscientificInformation,
hydrothermal processes,
impedance,
impedance phase,
impedance strike,
magnetic field (earth),
magnetotelluric,
magnetotelluric surveying,
mineral deposits,
mineral resources,
sounding,
tipper,
water quality, Fewer tags
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