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Major-oxide and trace-element geochemical data from rocks collected in 2019...
During the 2019 field season, geologists from the Alaska Division of Geological & Geophysical Surveys (DGGS) conducted 1:100,000-scale geologic mapping and sampling of a... -
Major-element glass compositions of tephra from the circa 3.6 ka eruption of...
This Raw Data File presents major-oxide glass geochemical results from the ca. 3.6 ka caldera-forming eruption of Aniakchak volcano, Alaska. These data are part of a larger... -
Major-oxide, minor-oxide, and trace-element geochemical data from rocks...
Mineral-resources personnel from the Alaska Division of Geological & Geophysical Surveys carried out a geological field survey, including mapping and sampling, in the... -
U-Pb Zircon ages from bedrock samples collected in the Tanacross D-1, and...
This Alaska Division of Geological & Geophysical Surveys (DGGS) Preliminary Interpretive Report presents U-Pb ages of zircons from 14 sedimentary, metamorphic, and igneous... -
Major-oxide and trace-element geochemical data from rocks collected in the...
From June 12-21, 2017, the Alaska Division of Geological & Geophysical Surveys (DGGS) geologists carried out geologic mapping and geochemical sampling in the northeastern... -
Palynological and thermal maturity analysis of outcrop samples from the...
This data release provides palynomorph assemblages, kerogen observations, thermal maturity estimates, age interpretations, and field station locations of palynology samples... -
U-Pb and Lu-Hf isotope, age, and trace-element data from zircons at four...
This Division of Geological & Geophysical Surveys (DGGS) Raw Data File presents U-Pb geochronology and Lu-Hf isotopic compositions, age-dating results, and additional trace-... -
Major-oxide and trace-element geochemical data from rocks collected in 2015...
Late Triassic mafic to ultramafic intrusions in the Wrangellia terrane are host to magmatic sulfide nickel-copper-cobalt and platinum-group element (PGE) mineralization. DGGS's... -
Geochemical data from samples collected in 2020 and 2021 for the Western...
During the 2021 field season, geologists from the Alaska Division of Geological & Geophysical Surveys (DGGS) conducted 1:100,000-scale bedrock geologic mapping of ~2600 mi2... -
Major-oxide and trace-element geochemical data from rocks collected in 2015...
The Tok project area is adjacent to the Delta mineral belt volcanogenic massive-sulfide (VMS) district, the Peak gold-silver-copper skarn, and structurally controlled gold and... -
Preliminary characterization of two coals from the upper Prince Creek...
In July of 2018, the Alaska Division of Geological & Geophysical Surveys (DGGS) studied and sampled the coal beds within the upper section of the Prince Creek Formation at... -
Geochemical data from samples collected in 2021 for the Taylor Mountain...
Raw Data File 2022-4, Geochemical data from samples collected in 2021 for the Taylor Mountain project, Tanacross and Eagle quadrangles, Alaska, presents whole-rock trace-element... -
U-Pb detrital zircon geochronology of Cretaceous-Cenozoic sedimentary rocks...
This report presents U-Pb detrital zircon dates from three sedimentary rock samples collected in the eastern Tanacross Quadrangle during 2019 geologic mapping by the Alaska... -
Major-oxide and trace-element geochemical data from rocks collected in 2018...
From June 19 through July 15, 2018, geologists from the Alaska Division of Geological & Geophysical Surveys (DGGS) carried out a geologic mapping and geochemical sampling... -
Major-oxide and trace-element geochemical data from rocks collected in the...
Geologists from the Alaska Division of Geological & Geophysical Surveys (DGGS) and University of Alaska carried out a two-part geologic mapping and geochemical sampling... -
U-Pb zircon age data from meta-igneous rocks in the Clearwater Mountains,...
We report U-Pb zircon geochronology results for one metavolcanic and one metaplutonic rock sample from the Mount Hayes A-6 Quadrangle of central Alaska. These samples are... -
Major-oxide, minor-oxide, and trace-element geochemical data from rocks...
Geologists from the Alaska Division of Geological & Geophysical Surveys (DGGS) and the University of Alaska Fairbanks (UAF) carried out geologic field surveys, including... -
Zircon U-Pb age data, Ray Mountains area, Bettles Quadrangle, Alaska
U-Pb analyses were performed on igneous rocks from the Ray Mountains area of west-central Alaska. These new age analyses will allow us to better evaluate the geochronology of... -
Jarvis Creek coal report
In July and August of 2016, the Alaska Division of Geological & Geophysical Surveys (DGGS) conducted a field study in the Jarvis Creek coal field to better characterize... -
Digital compilation of geochemical data for historical samples from...
The State of Alaska's Strategic and Critical Minerals (SCM) Assessment project, a State-funded Capital Improvement Project (CIP), is designed to evaluate Alaska's statewide...