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Geologic studies of the upper Chena River area were undertaken in 1983 as part of the Interior Mining District Evaluation Program, a series of projects designed to develop new information on known mineral districts in interior Alaska. During the three-year course of the program, geologists examined four districts that have contributed significantly to historical gold production in Alaska's Interior, Fairbanks, Livengood, Richardson, and upper Chena River.
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This surficial-geologic map shows the distribution of unconsolidated deposits and undifferentiated bedrock in the Faith Creek area in the Circle A-4, A-5, B-4, and B-5 quadrangles. This map was prepared principally by the interpretation of 1:63,360-scale, false-color, infrared aerial photographs taken in 1979 and 1981 and is locally verified by ground observations during field work in 2007.
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This map illustrates potential near-surface sources of geologic materials that may be useful for construction and other purposes. Field observations indicate that each geologic unit (for example, flood-plain alluvium) has a definite composition or range of composition. Therefore, the presence of material type is interpreted from the distribution of geologic units (Newberry and others, 1996 - PDF96-16). Assignment of Unified Soil Classes (Wagner, 1957) is based on visual observation and interpretation of the likely distribution of the materials; no grain-size analyses were performed. Descriptions of unconsolidated deposits are modified from Pewe and Bel (1975a-d) and Pewe and Bell (1976). This map is generalized...
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The geochemical analyses in this report result from the reanalysis of 932 archived stream-sediment pulps from the northern Fairbanks D-1, northern Fairbanks D-2, Fairbanks D-3 and southern Livengood A-1 and A-2 Quadrangles. The original geochemical data set included 1013 stream-sediment samples, (Albanese, 1982a-c).
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This preliminary geologic map of the Fairbanks mining district was mapped at 1:63,360 scale. The report describes the geologic setting, structural geology, earthquake potential, economic geology and the description of bedrock units.
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The White Mountains airborne magnetic and radiometric geophysical survey covers parts of the Livengood, Circle, and Fairbanks quadrangles 25 kilometers north of Fairbanks, Alaska. Magnetic and radiometric data were collected with a fixed-wing aircraft June 30 to August 22, 2021 by MPX Geophysics LTD. A total of 36,933 line kilometers were collected covering 13,423 square kilometers. The magnetometer was mounted to a rear-facing fixed boom (tail stinger). The radiometric crystals were located in the cabin of the aircraft. The White Mountains survey was flown with a line spacing of 400 meters (m) and a mean ground clearance of 270 m. The data, as well as additional metadata, are available from the DGGS website: http://doi.org/10.14509/30756....
Categories: Data; Tags: Aeromagnetic, Aeromagnetic Data, Aeromagnetic Map, Aeromagnetic Survey, Aggie Creek, All tags...
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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...
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The Yukon-Tanana Upland airborne magnetic geophysical data merge provides a merged raster grid of magnetic data for the Yukon-Tanana Upland (YTU), Alaska. This dataset provides a regionally consistent magnetic grid while retaining as much detail as possible of the originating data by leveling all the region's magnetic grids to one another. This 100-m cell-size magnetic grid of the YTU will assist in evaluating the region's geologic structure, geologic processes, tectonic evolution, and mineral resource potential. The grid was compiled from previous studies published by the Alaska Division of Geological & Geophysical Surveys (DGGS).
Tags: Aeromagnetic Survey, Airborne Geophysical Survey, Alaska Division of Geological & Geophysical Surveys, Alcan, Badger, All tags...


    map background search result map search result map Preliminary Geologic Map of the Fairbanks Mining District, Alaska Preliminary Derivative Geologic Materials Map of the Fairbanks Mining District, Alaska Geologic map of the Upper Chena River area, eastern interior Alaska Trace element geochemical data from reanalysis of stream-sediment samples collected in 1981 from the Fairbanks mining district, Alaska Surficial-geologic map of the northern Fairbanks mining district, Circle Quadrangle, Alaska Yukon-Tanana Upland airborne magnetic geophysical data merge, version 2023 Tanana River and Big Delta Airborne Magnetic and Radiometric Survey White Mountains Airborne Magnetic and Radiometric Geophysical Survey Surficial-geologic map of the northern Fairbanks mining district, Circle Quadrangle, Alaska Geologic map of the Upper Chena River area, eastern interior Alaska Preliminary Geologic Map of the Fairbanks Mining District, Alaska Preliminary Derivative Geologic Materials Map of the Fairbanks Mining District, Alaska Trace element geochemical data from reanalysis of stream-sediment samples collected in 1981 from the Fairbanks mining district, Alaska White Mountains Airborne Magnetic and Radiometric Geophysical Survey Tanana River and Big Delta Airborne Magnetic and Radiometric Survey Yukon-Tanana Upland airborne magnetic geophysical data merge, version 2023