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Mineral Resources Section personnel from the Alaska Division of Geological & Geophysical Surveys (DGGS) carried out a geologic field survey, including mapping and sampling, in the eastern part of the Bonnifield mining district in the Fairbanks A-1 and A-2 and the Healy D-1 and D-2 quadrangles, Alaska, from June 16 through July 18, 2008. The fieldwork provides basic information critical to building an understanding of Alaska's geology and is part of an integrated program of airborne geophysical surveys followed by geologic mapping. Specifically, this work provides geologic context for geophysical surveys conducted in 2006. Interpretation and synthesis of this data has been presented in professional and trade meetings....
Tags: Alaska Range,
Bedrock,
Chute Creek,
Dry Creek,
Dry Creek prospect, All tags...
Fairbanks Quadrangle,
Geologic,
Geology,
Glory Creek,
Glory Creek prospect,
Healy Quadrangle,
Igneous,
Igneous Rocks,
Kansas Creek,
Minerals,
Red Mountain Creek,
Rocks,
Rogers Creek,
STATEMAP Project,
Sedimentary Rocks,
Sheep Creek,
Slide Creek,
Snow Mountain Gulch,
WTF (Western Tundra Flats) prospect,
Wood River,
geoscientificInformation, Fewer tags
USGS Historical Quadrangle in GeoPDF.
Tags: 7.5 x 7.5 minute,
Downloadable Data,
GeoPDF,
GeoTIFF,
Historical Topographic Maps, All tags...
Historical Topographic Maps 7.5 x 7.5 Minute Map Series,
IL,
Map,
Wood River,
imageryBaseMapsEarthCover, Fewer tags
USGS Historical Quadrangle in GeoPDF.
Tags: 30 x 30 minute,
Downloadable Data,
GeoPDF,
GeoTIFF,
Historical Topographic Maps, All tags...
Historical Topographic Maps 30 x 30 Minute Map Series,
Map,
NE,
Wood River,
imageryBaseMapsEarthCover, Fewer tags
USGS Historical Quadrangle in GeoPDF.
Tags: 30 x 30 minute,
Downloadable Data,
GeoPDF,
GeoTIFF,
Historical Topographic Maps, All tags...
Historical Topographic Maps 30 x 30 Minute Map Series,
Map,
NE,
Wood River,
imageryBaseMapsEarthCover, Fewer tags
USGS Historical Quadrangle in GeoPDF.
Tags: 7.5 x 7.5 minute,
Downloadable Data,
GeoPDF,
GeoTIFF,
Historical Topographic Maps, All tags...
Historical Topographic Maps 7.5 x 7.5 Minute Map Series,
IL,
Map,
Wood River,
imageryBaseMapsEarthCover, Fewer tags
USGS Historical Quadrangle in GeoPDF.
Tags: 7.5 x 7.5 minute,
Downloadable Data,
GeoPDF,
GeoTIFF,
Historical Topographic Maps, All tags...
Historical Topographic Maps 7.5 x 7.5 Minute Map Series,
IL,
Map,
Wood River,
imageryBaseMapsEarthCover, Fewer tags
USGS Historical Quadrangle in GeoPDF.
Tags: 7.5 x 7.5 minute,
Downloadable Data,
GeoPDF,
GeoTIFF,
Historical Topographic Maps, All tags...
Historical Topographic Maps 7.5 x 7.5 Minute Map Series,
IL,
Map,
Wood River,
imageryBaseMapsEarthCover, Fewer tags
USGS Historical Quadrangle in GeoPDF.
Tags: 7.5 x 7.5 minute,
Downloadable Data,
GeoPDF,
GeoTIFF,
Historical Topographic Maps, All tags...
Historical Topographic Maps 7.5 x 7.5 Minute Map Series,
Map,
NE,
Wood River,
imageryBaseMapsEarthCover, Fewer tags
USGS Historical Quadrangle in GeoPDF.
Tags: 15 x 15 minute,
Downloadable Data,
GeoPDF,
GeoTIFF,
Historical Topographic Maps, All tags...
Historical Topographic Maps 15 x 15 Minute Map Series,
Map,
NE,
Wood River,
imageryBaseMapsEarthCover, Fewer tags
USGS Historical Quadrangle in GeoPDF.
Tags: 7.5 x 7.5 minute,
Downloadable Data,
GeoPDF,
GeoTIFF,
Historical Topographic Maps, All tags...
Historical Topographic Maps 7.5 x 7.5 Minute Map Series,
IL,
Map,
Wood River,
imageryBaseMapsEarthCover, Fewer tags
USGS Historical Quadrangle in GeoPDF.
Tags: 7.5 x 7.5 minute,
Downloadable Data,
GeoPDF,
GeoTIFF,
Historical Topographic Maps, All tags...
Historical Topographic Maps 7.5 x 7.5 Minute Map Series,
IL,
Map,
Wood River,
imageryBaseMapsEarthCover, Fewer tags
40Ar/39Ar data from plutonic, dike, and alteration samples collected during geologic mapping of the eastern part of the Bonnifield mining district geologic map area in parts of Fairbanks A-1 and Fairbanks A-2 and Healy D-1 and Healy D-2 quadrangles yield results indicating the plutons, dikes, and a gold-bearing quartz vein in the Bonnifield Map area range from 85 to 95 m.y.
Tags: 40Ar/39Ar,
Age Dates,
Alaska Range,
Alaska, State of,
Buzby prospect, All tags...
Chute Creek,
Denali Borough,
Dry Creek,
Dry Creek placer mine,
Dry Creek prospect,
Fairbanks Quadrangle,
Forgotten Creek,
Geochronology,
Geology,
Glacier Creek,
Glory Creek,
Glory Creek prospect,
Healy Quadrangle,
Kansas Creek,
Kansas Creek prospect,
LEA Creek prospect,
Newman Creek,
Newman Creek placer mine,
Red Mountain Creek,
Red Mountain Creek prospect,
Rogers Creek,
STATEMAP Project,
Sheep Creek,
Slate Creek,
Slide Creek,
Smog prospect,
Snow Mountain Gulch,
Threemile Creek,
WTF (Western Tundra Flats) prospect,
West Fork Little Delta River,
Wood River,
geoscientificInformation, Fewer tags
Mineral-resources personnel from the Alaska Division of Geological & Geophysical Surveys carried out a geological field survey, including mapping and sampling in the eastern part of the Bonnifield mining district in the Fairbanks A-1, A-2, Healy D-1 and D-2 quadrangles, Alaska from June 16 to July 18, 2008. The fieldwork provides basic information critical to building an understanding of Alaska geology and is part of an integrated program of airborne geophysical surveys followed by geological mapping. During 2008, 242 rock samples were collected for geochemical trace-element analysis, 106 rock samples were collected for whole rock (major- and minor-oxide and petrogenetically important trace element) analyses, and...
Tags: Alaska Range,
Alaska, State of,
Buzby prospect,
Chute Creek,
Denali Borough, All tags...
Dry Creek,
Dry Creek placer mine,
Dry Creek prospect,
Fairbanks Quadrangle,
Forgotten Creek,
Geochemistry,
Glacier Creek,
Glory Creek,
Glory Creek prospect,
Healy Quadrangle,
Kansas Creek,
Kansas Creek prospect,
LEA Creek prospect,
Major Oxides,
Newman Creek,
Newman Creek placer mine,
Red Mountain Creek,
Red Mountain Creek prospect,
Rogers Creek,
STATEMAP Project,
Sheep Creek,
Slate Creek,
Slide Creek,
Smog prospect,
Snow Mountain Gulch,
Stream Sediments,
Threemile Creek,
Trace Metals,
WTF (Western Tundra Flats) prospect,
West Fork Little Delta River,
Wood River,
geoscientificInformation, Fewer tags
USGS Historical Quadrangle in GeoPDF.
Tags: 7.5 x 7.5 minute,
Downloadable Data,
GeoPDF,
GeoTIFF,
Historical Topographic Maps, All tags...
Historical Topographic Maps 7.5 x 7.5 Minute Map Series,
IL,
Map,
Wood River,
imageryBaseMapsEarthCover, Fewer tags
USGS Historical Quadrangle in GeoPDF.
Tags: 7.5 x 7.5 minute,
Downloadable Data,
GeoPDF,
GeoTIFF,
Historical Topographic Maps, All tags...
Historical Topographic Maps 7.5 x 7.5 Minute Map Series,
Map,
NE,
Wood River,
imageryBaseMapsEarthCover, Fewer tags
USGS Historical Quadrangle in GeoPDF.
Tags: 7.5 x 7.5 minute,
Downloadable Data,
GeoPDF,
GeoTIFF,
Historical Topographic Maps, All tags...
Historical Topographic Maps 7.5 x 7.5 Minute Map Series,
IL,
Map,
Wood River,
imageryBaseMapsEarthCover, Fewer tags
USGS Historical Quadrangle in GeoPDF.
Tags: 7.5 x 7.5 minute,
Downloadable Data,
GeoPDF,
GeoTIFF,
Historical Topographic Maps, All tags...
Historical Topographic Maps 7.5 x 7.5 Minute Map Series,
Map,
NE,
Wood River,
imageryBaseMapsEarthCover, Fewer tags
The Porcupine River fixed wing aeromagnetic geophysical survey is located in eastern Alaska, along the Canadian border, in the Sheenjek and Black mining districts. This survey is located about 135 kilometers east of Fort Yukon, Alaska and about 85 kilometers east of Circle, Alaska. Magnetic data were collected with a Geometrics G-822A cesium-vapor split-beam sensor mounted in a tail stinger. Between May 5th and June 28th, 2017, a total of 50,329 line kilometers were collected covering 13,646.9 square kilometers. Data were collected at a line spacing of 300 meters (m) with a mean ground clearance of 235 m. The data, as well as additional metadata, are available from the DGGS website: https://doi.org/10.14509/29737....
Categories: Data;
Tags: Aeromagnetic,
Aeromagnetic Data,
Aeromagnetic Map,
Aeromagnetic Survey,
Airborne Geophysical Survey, All tags...
Analytic Signal,
Apparent Resistivity Data,
Apparent Resistivity Map,
Apparent Resistivity Survey,
Bear Mountain Creek,
Big Mountain,
Black River,
Black River Quadrangle,
Bull Creek,
Campbell River,
Canalaska Mountain,
Canyon Village,
Charley River Quadrangle,
Coleen Quadrangle,
Conductivity Survey,
David Creek,
Dempsey Creek,
Dorothy Creek,
Drifting Snow Creek,
Electromagnetic Data,
Electromagnetic Survey,
Exploration,
First Vertical Derivative,
Fish Creek,
Fred Creek,
Frequency Domain Electromagnetic Data,
Geologic,
Geology,
Geophysical Map,
Geophysical Survey,
Geophysics,
Geophysics Search Tag,
Grayling Fork Black River,
Gridded Data,
Howling Dog Creek,
Kevinjik Creek,
Lake Creek,
Line Data,
Magnetic Data,
Magnetic Survey,
Magnetics,
Marten Creek,
Midnight Creek,
Midnight Hill,
Mineral Resources,
Owl Creek,
Pern Lakes,
Pink Bluff,
Racquet Creek,
Rapid River,
Rat Creek,
Remote Sensing,
Resistivity,
Resistivity Survey,
Rice Gulch Creek,
Rocky Mountain,
Runt Creek,
Salmon Fork Black River,
Salmon Trout River,
Siwash Creek,
Smith Lake,
Spike Mountain,
Steamboat Mountain,
Strangle Woman Creek,
Sunaghun Creek,
Surveyor Creek,
Tetthajik Creek,
Tikan Creek,
USGS Science Data Catalog (SDC),
Van Hatten Creek,
Vunvekottlui Lake,
White Mountain Creek,
Wood River,
geoscientificInformation, Fewer tags
The Tanana River and Big Delta airborne magnetic and radiometric geophysical survey covers parts of the Big Delta, Charley River, Circle, Eagle, Fairbanks, Kantishna River, Livengood, Mount Hayes, and Tanacross quadrangles near Fairbanks and Delta Junction, Alaska. Magnetic and radiometric data were collected with a fixed-wing aircraft from May 14 to August 4, 2022, by MPX Geophysics LTD. The survey contains six individual blocks. A total of 97,386 line kilometers were collected. The six blocks total 33,095 km2; they cover 32,944 km2 due to overlap. The magnetometer was mounted to a rear-facing fixed boom (tail stinger). The radiometric crystals were located in the cabin of the aircraft. The Tanana, Chena, Healy,...
Categories: Data;
Tags: Aeromagnetic,
Aeromagnetic Data,
Aeromagnetic Map,
Aeromagnetic Survey,
Airborne Geophysical Survey, All tags...
Analytic Signal,
Big Delta,
Big Lake,
Bonnifield Mining District,
Central,
Charley River,
Chatanika River,
Chena Hot Springs,
Chena River,
Circle Mining District,
Cosna,
DGGS,
Delta River,
Delta River Mining District,
Exploration,
Fairbanks Mining District,
Fort Wainwright,
Fortymile Mining District,
Geologic,
Geology,
Geophysical Map,
Geophysical Survey,
Geophysics,
Geophysics Search Tag,
Gerstle River,
Goodpaster Mining District,
Goodpaster River,
Gridded Data,
Healy River,
Hot Springs Mining District,
Kantishna Mining District,
Line Data,
Magnetic Data,
Magnetic Survey,
Magnetics,
Mineral Resources,
North Pole,
Rampart Mining District,
Remote Sensing,
Richardson,
Salcha River,
Tanana River,
Tatalina River,
Tatlanika River,
Tolovana,
Tolovana Mining District,
Tolovana River,
Totatlanika River,
Two Rivers,
USGS Science Data Catalog (SDC),
Volkmar River,
Wood River,
Yukon River,
Zitziana River,
geoscientificInformation, Fewer tags
USGS Historical Quadrangle in GeoPDF.
Tags: 30 x 30 minute,
Downloadable Data,
GeoPDF,
GeoTIFF,
Historical Topographic Maps, All tags...
Historical Topographic Maps 30 x 30 Minute Map Series,
Map,
NE,
Wood River,
imageryBaseMapsEarthCover, Fewer tags
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