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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.
Tags: Aerial Geology,
Alluvial Deposits,
Alluvial Fan,
Alluvium,
Chatanika River, All tags...
Circle Quadrangle,
Colluvial Deposits,
Colluvium,
Complex Deposits,
Fairbanks Mining District,
Faith Creek,
Fluvial,
Geologic Map,
Geomorphology,
Glacial Deposits,
Glacial Drift,
Glacial Geology,
Landslide,
Landslide Deposit,
Man-Made Deposits,
Mining,
Pingos,
Placer,
Sourdough Camp,
Steese Highway,
Surficial,
Surficial Geologic Map,
Surficial Geology,
Terrace,
Till,
geoscientificInformation, Fewer tags
During the 2006 field season, the Alaska Division of Geological & Geophysical Surveys conducted remote mapping as part of the Kavik River STATEMAP project.This surficial-geologic mapping was conducted to provide additional detail to the STATEMAP comprehensive geologic mapping as well as to serve as a stand-alone map publication.
This report provides detailed (1:63,360-scale) mapping of portions of U.S. Geological Survey Circle B-2 (1955), B-3 (1955), B-4 (1952), C-2 (1955), C-3 (1955), and C-4 (1952) quadrangles. The area is part of the Circle mining district and adjacent to the Fairbanks mining district. This report includes detailed geologic, structural, stratigraphic, and geochronologic data. Based on the resulting geologic maps, field investigations, and laboratory materials analyses, the project has also generated derivative maps of geologic construction materials and geologic hazards.
Tags: Aereal,
Aerial Photography,
Aeromagnetic Survey,
Age Dates,
Alaska, State of, All tags...
Alluvial Deposits,
Alluvium,
Amphibolite,
Ar-Ar,
Bedrock,
Bibliography,
Birch Creek,
C14,
Carbonates,
Circle Hot Springs,
Circle Mining District,
Circle Quadrangle,
Clastics,
Coal,
Colluvial Deposits,
Colluvium,
Conductivity Survey,
Conodonts,
Crooked Creek,
Electromagnetic Survey,
Fan,
Faulting,
Faults,
Fluvial,
Folding,
Fossils,
Geologic,
Geomorphology,
Glacial,
Glacial Deposits,
Glacial Drift,
Granite,
Hornblende,
Hornfels,
Igneous Rocks,
K-Ar,
Magnetite,
Major Oxides,
Mammoth Creek,
Mastodon Dome,
Metamorphic Grade,
Metamorphic Minerals,
Metamorphism,
Mineralogy,
Modal Analysis,
Petrography,
Plutonic,
Plutonic Hosted,
Porphyry,
Precious Metals,
Quartz,
Regional,
Regional Metamorphism,
Sample Location,
Sandstone,
Schist,
Sedimentary,
Structure,
Surficial,
Tectonics,
Terranes,
geoscientificInformation, Fewer tags
The Alaska Division of Geological & Geophysical Surveys (DGGS), in partnership with the U.S. National Cooperative Geologic Mapping Program, mapped approximately 450 mi2 of the Talkeetna Mountains region of central Alaska at 1:50,000 scale over the course of six weeks in 2014. This area contains significant exposures of Late Triassic mafic volcanics and gabbro sills that have been the focus of region-wide exploration for the Strategic and Critical platinum-group elements (PGEs). The area also exposes numerous inactive and possibly active faults which project through the area of proposed hydropower development. The resulting geologic map offers an improved understanding of the geology, structural history, and mineral...
Tags: 40Ar/39Ar,
Aerial Geology,
Aerial Photography,
Alluvial,
Alluvial Deposits, All tags...
Amphibolite Facies Units,
Bedrock Geologic Map,
Bedrock Geology,
Brachiopods,
Cleary Creek,
Colluvial Deposits,
Cordilleran Ice Sheet,
Crinoids,
Esker,
Faulting,
Faults,
Floodplain,
Fluvial,
Fossils,
Geochronology,
Geologic Map,
Geologic Materials,
Geomorphology,
Glacial,
Glacial Deposits,
Glacial Drift,
Glacial Geology,
Glacial Geomorphology,
Glacial History,
Glacial Lake,
Glacial Processes,
Glacial Stratigraphy,
Glaciation,
Ice Contact Deposits,
Ice-Contact,
Iron Creek,
Lacustrine,
Lacustrine Sedimentation,
Landslide,
Landslide Deposit,
Outwash,
Outwash Fan,
Paleochannel,
Permafrost and Periglacial,
Remote Sensing,
Rock Glaciers,
Rock-Glacier Deposits,
Rockfall,
STATEMAP Project,
Sand and Gravel,
Slides,
Slope Instability,
Soil Creep,
Stephan Lake,
Surficial,
Surficial Geologic Map,
Surficial Geology,
Talkeetna Mountains,
Talkeetna Mountains Quadrangle,
Talkeetna River,
Till,
geoscientificInformation, Fewer tags
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 potential for SCM resources. The SCM Assessment is being implemented by the Alaska Division of Geological & Geophysical Surveys (DGGS), and involves obtaining new airborne-geophysical, geological, and geochemical data. For the geochemical part of the SCM Assessment, thousands of historical geochemical samples from DGGS, U.S. Geological Survey (USGS), and U.S. Bureau of Mines archives are being reanalyzed by DGGS using modern, quantitative, geochemical-analytical methods. The objective is to update the statewide geochemical database to more clearly...
Tags: Analyses,
Anchorage Quadrangle,
Chemistry,
Critical Minerals,
Geochemical Data, All tags...
Geochemical Surveys,
Geochemistry,
Glacial Deposits,
Gulkana Quadrangle,
Healy Quadrangle,
Mineral Assessment,
Mount Hayes Quadrangle,
Nabesna Quadrangle,
Strategic Minerals,
Strategic and Critical Minerals Assessment Project,
Stream Sediments,
Talkeetna Mountains Quadrangle,
Trace Elements,
Trace Metals,
geoscientificInformation, Fewer tags
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