
Mineral Resources Program Office
https://www.usgs.gov/energy-and-minerals/mineral-resources-program
Location
John W Powell
12201 Sunrise Valley Drive
Reston
, VA
20192-0002
USA
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The table contains oxide and cation compositions of olivine grains from drill core of the Duluth Complex, Minnesota. The oxides were determined by electron probe microanalysis (EPMA) and are reported in weight percent (wt%). The cations were calculated based on the oxide compositions and are reported in mole percent (mol%). Olivine is a magnesium iron orthosilicate mineral with the formula (Mg2+, Fe2+)2SiO4. Olivine forms a solid solution series with magnesium (Mg) at one end and iron (Fe) at the other. Forsterite (Mg2SiO4) is the magnesium endmember and fayalite (Fe2SiO4) is the iron endmember. Minor elements can substitute into the crystal structure, such as manganese (Mn) and nickel (Ni). To better understand...
Categories: Data;
Types: Citation;
Tags: Cook County,
Duluth,
Environmental Health,
Geochemistry,
Lake County, All tags...
Mineralogy,
Minnesota,
St. Louis County,
USGS Science Data Catalog (SDC),
electron microscopy,
mineralogy, Fewer tags
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This dataset includes magnetotelluric (MT) 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 audiomagnetotellurics, the USGS collected MT data at 24 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: Animas River,
Arrastra Gulch,
Colorado,
DOI,
Department of the Interior, All tags...
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,
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
|
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
|
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
|
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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