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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
This data file presents 40Ar/39Ar step-heating geochronology results for a granite sample from the Livengood mining district. The Livengood area is a historically productive placer mining area approximately 80 road miles north of Fairbanks, Alaska. This data is a component of a geologic map and accompanying report that synthesizes recently collected and previously published agency and industry geologic data in a 1:50,000-scale comprehensive geologic map to build a better understanding of the geology and mineral-resource potential of the Livengood area.
Tags: 40Ar/39Ar,
Airborne Geophysical/Geological Mineral Inventory,
Bedrock,
Bedrock Geology,
Cascaden Ridge, All tags...
Copper,
Eolian,
Fossils,
Geochemistry,
Geochronology,
Geologic Map,
Gold,
Igneous Rocks,
Livengood,
Livengood Bench,
Livengood Quadrangle,
Man-Made Deposits,
Metamorphic Rocks,
Money Knob,
Plutonic Rocks,
Ranney Hollow,
STATEMAP Project,
Sedimentary Rocks,
Shorty Creek,
Silver,
Surficial Geology,
Tailings,
Tolovana Mining District,
Tolovana River,
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.
Aerial photographs of the coastline from Nome to Elim were collected on August 23, 2015. The photographs were processed using Structure-from-Motion (SfM) photogrammetric techniques. Global Positioning System (GPS) checkpoints were collected via a Global Navigation Satellite System (GNSS) survey conducted between August 15 and September 14, 2015. For the purposes of open access to elevation and orthoimagery datasets in coastal regions of Alaska, this collection is being released as a Raw Data File with an open end-user license. This file is a single-band, 32-bit float DSM (digital surface model) which represents surface elevations of buildings, vegetation, and uncovered ground surfaces in meters with 20 cm GSD. The...
Tags: Bear Creek,
Bonanza River,
Cape Darby,
Cape Nome,
Coastal, All tags...
Coastal Erosion,
Coastal and River,
Daniels Creek,
Dry Creek,
Elim,
Engineering,
Engineering Geology,
Environmental,
Fish River,
Flambeau River,
Geologic,
Geologic Hazards,
Geological Process,
Geomorphology,
Golovin,
Hazards,
Hillshade Image,
Iron Creek,
Kachauik River,
Kwiniuk River,
Methods,
Moses Point Fishing Village,
Mudyutok River,
Nome,
Nome River,
Orthoimagery,
Port Safety,
Portage Creek,
Raster Image,
Rock Creek,
Snake River,
Solomon,
Solomon River,
Surface,
Surficial,
Surficial Geology,
White Mountain,
Yuonglik River,
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
This geologic map and report depicts portions of the Livengood B-3, B-4, C-3, and C-4 quadrangles. The Livengood area is a historically productive placer mining area approximately 80 road miles north of Fairbanks, Alaska. This report synthesizes recently collected and previously published agency and industry geologic data in a 1:50,000-scale comprehensive geologic map to build a better understanding of the geology and mineral-resource potential of the Livengood area. It expands and updates the Alaska Division of Geological & Geophysical Surveys (DGGS) Preliminary Interpretive Report (PIR) 2004-3 with the addition of new DGGS mapping and drillhole data from ITH, and integrates previously published DGGS surficial...
Tags: 40Ar/39Ar,
Airborne Geophysical/Geological Mineral Inventory,
Bedrock,
Bedrock Geology,
Cascaden Ridge, All tags...
Copper,
Eolian,
Fossils,
Geochemistry,
Geochronology,
Geologic Map,
Gold,
Igneous Rocks,
Livengood,
Livengood Bench,
Livengood Quadrangle,
Man-Made Deposits,
Metamorphic Rocks,
Money Knob,
Plutonic Rocks,
Ranney Hollow,
STATEMAP Project,
Sedimentary Rocks,
Shorty Creek,
Silver,
Surficial Geology,
Tailings,
Tolovana Mining District,
Tolovana River,
geoscientificInformation, Fewer tags
This 1:50,000 scale geologic map describes the distribution of unconsolidated deposits, identifies local geologic hazards, and provides information about the depositional environment and basic engineering properties of common surficial-geologic materials in and around Shaktoolik, Alaska. Map units are the result of combined field observations and aerial imagery interpretation. A suite of local ground observations were collected over a two-week period in July 2011 by a helicopter-supported team of DGGS geologists and collaborators. Field investigations included soil test pits, sample collection, soil and rock description, oblique aerial photography, and documentation of landscape morphology.
Tags: Alluvial,
Alluvium,
Analyses and Sampling,
C14,
Clay, All tags...
Coastal,
Coastal and River,
Colluvium,
Conglomerate,
Construction Materials,
Engineering,
Engineering Geology,
Eolian,
Erosion,
Fan,
Flood,
Floodplain,
Fluvial,
Gelifluction,
Geochronology,
Geologic,
Geologic Hazards,
Geologic Map,
Geology,
Geomorphology,
Geotechnical,
Gravel,
Hazards,
Ice,
Image Interpretation,
Interpretation,
Inundation,
Lacustrine,
Lakes,
Meltwater,
Norton Bay Quadrangle,
Permafrost,
Permafrost and Periglacial,
Resource Assessment,
Resources,
Rocks,
Sand,
Sand and Gravel,
Sediment,
Sedimentation,
Shaktoolik,
Silt,
Slope,
Slump,
Surface,
Surficial,
Surficial Geologic Map,
Surficial Geology,
Terrace,
Thaw Lakes,
Thawing Permafrost,
Thermokarst,
geoscientificInformation, Fewer tags
This map shows the distribution of unconsolidated deposits and undifferentiated bedrock exposed at the surface in the Sagavanirktok A-3, A-4, B-3, B-4, and portions of the Sagavanirktok A-5 and B-5 quadrangles. Units were mapped by interpretation of stereo pairs of approximately 1:65,000-scale false-color infrared aerial photographs taken in June and August 1978, as well as 2.5 m and 10 m resolution SPOT imagery collected in 2009 and 2010. Fieldwork was completed in 2008.
Tags: Aeolian,
Alaska Pipeline,
Alaska, State of,
Colluvial Deposits,
Colluvium, All tags...
Dalton Highway,
Geologic Map,
Geology,
Geomorphology,
Glacial,
Glacial Drift,
Glacial Geology,
Glacial Geomorphology,
Glacial Processes,
Ivishak River,
Lupine River,
Permafrost,
Permafrost and Periglacial,
Pingos,
Sagavanirktok,
Sagavanirktok Quadrangle,
Sagavanirktok River,
Solifluction,
Surficial Geology,
Thaw Lakes,
Thermokarst,
Toolik River,
geoscientificInformation, Fewer tags
The State of Alaska Division of Geological & Geophysical Surveys (DGGS) produced a digital surface model (DSM) and an orthorectified aerial optical image mosaic (orthoimagery) of the Resurrection Bay watershed, surrounding the city of Seward in south-central Alaska. Aerial photographs and Global Navigation Satellite System (GNSS) data were collected on August 13, 2015, and were processed using Structure-from-Motion (SfM) photogrammetric techniques to create the DSM and orthoimagery. All data are projected in UTM Zone 6 North (meters) using the NAD83 (2011; EPSG 26906) horizontal datum and NAVD88 (Geoid12A; EPOCH 2010.00) vertical datum. The project was part of an ongoing investigation of the impact of flooding,...
Tags: Aerial,
Bear Creek,
Bear Lake,
Bear Lake Glacier,
Bear Mountain, All tags...
Box Canyon Creek,
Caines Head,
Callisto Peak,
Clear Creek,
Derby Cove,
Engineering,
Engineering Geology,
Environmental,
First Lake,
Fourth of July Creek,
Geologic,
Geologic Hazards,
Geological Process,
Geology,
Geomorphology,
Godwin Creek,
Grouse Lake,
Hazards,
Japanese Creek,
Lakes,
Likes Creek,
Little Bear Lake,
Lost Creek,
Lost Lake Trail,
Lowell Creek,
Lowell Point,
Marathon Mountain,
Methods,
Mount Alice,
Mount Benson,
Mount Eva,
Orthoimagery,
Phoenix Peak,
Preachers Pond,
Prospect Glacier,
Race Point,
Raster Image,
Resurrection Bay,
Resurrection River,
Salmon Creek,
Sawmill Creek,
Scheffler Creek,
Second Lake,
Seward,
Slope,
Spring Creek,
Spruce Creek,
Surface,
Surficial,
Surficial Geology,
The Lagoon,
Thumb Cove,
Tiehacker Mountain,
Tonsina Creek,
Tonsina Point,
Vegetation,
Water,
Woodrow,
geoscientificInformation, Fewer tags
This map shows the distribution of surficial deposits and undifferentiated bedrock in parts of the Livengood C-3 and C-4 quadrangles, Tolovana mining district.
Tags: Aeolian,
Aerial Geology,
Age Dates,
Alluvial Deposits,
Alluvium, All tags...
C14,
Colluvial Deposits,
Colluvium,
Debris Flow,
Debris Flow Deposit,
Elliot Highway,
Eolian,
Floodplain,
Geomorphology,
Goldstream Creek,
Landslide,
Livengood,
Livengood Bench,
Livengood Creek,
Livengood Dome,
Livengood Mining District,
Livengood Quadrangle,
Money Knob,
Permafrost,
Permafrost and Periglacial,
Pingos,
Placer,
Placer Gold,
STATEMAP Project,
Slides,
Slope Instability,
Solifluction,
Surficial,
Surficial Geologic Map,
Surficial Geology,
Tailings,
Thawing Permafrost,
Thermokarst,
Trans-Alaska Pipeline,
geoscientificInformation, Fewer tags
The Tyonek area in the northwestern Cook Inlet trough is rich in petroleum, coal, geothermal, aggregate, and timber resources, but the detailed geologic mapping necessary for planning future resource development exists only in part of the area. This report and geologic map provide basic surficial-geologic information useful for exploiting those resources and planning future utility corridor developments. In addition to mapping of surficial geologic units, we provide discussion of strategraphic evidence pertaining to physiographic relations and geologic history of volcaniclastic deposits derived from ancestral Mount Spurr, multiple phases of Quaternary glacial activity, Chakachatna River valley landslide complexes...
Tags: Alaska Earthquake 1964,
Alluvial Fan,
Beluga Plateau,
Beluga River,
Blockade Glacier, All tags...
Capps Glacier,
Chakachatna River,
Chakachatna-McArthur Embayment,
Chalcedony,
Chigmit Mountains,
Chuitna Coal Project,
Chuitna River,
Coastal Plain,
Colluvium,
Cook Inlet,
Cook Inlet Basin,
Correlation,
Debris Avalanche,
Depositional Environment,
Diamictons,
Earthquake Related Slope Failure,
Erratics,
Fault Displacement,
Glacial Geology,
Glacier Outburst Flood,
Glacioestuarine Deposits,
Jasper,
Jokulhlaup,
Lahar,
Landslide Deposit,
Little Ice Age,
Moraines,
Mount Spurr,
Neacola Mountains,
Neoglacial,
Neotectonics,
Penultimate Glaciation,
Radiocarbon Ages,
Rotational Landslide,
STATEMAP Project,
Sediment Gravity Flow,
Straight Creek,
Surface Fault Rupture,
Surficial Geologic Map,
Surficial Geology,
Susitna Lowland,
Tectonics,
Threemile Creek,
Till,
Tordrillo Mountains,
Tyonek,
Tyonek Quadrangle,
Volcaniclastic Deposits,
geoscientificInformation, Fewer tags
Aerial photographs of the coastline from Wales to Teller were collected on August 27, 2015 - August 28, 2015. The photographs were processed using Structure-from-Motion (SfM) photogrammetric techniques. Global Positioning System (GPS) checkpoints were collected via a Global Navigation Satellite System (GNSS) survey conducted between August 15 and September 14, 2015. For the purposes of open access to elevation and orthoimagery datasets in coastal regions of Alaska, this collection is being released as a Raw Data File with an open end-user license. Orthoimages contain 4-band, 8-bit, unsigned raster data (red/green/blue/no data; file format-GeoTIFF; source-Fairbanks Fodar) with 20 cm GSD. No-data values are found...
Tags: Coastal,
Coastal Erosion,
Coastal and River,
Engineering,
Engineering Geology, All tags...
Environmental,
Geologic,
Geologic Hazards,
Geological Process,
Geology,
Geomorphology,
Hazards,
Hillshade Image,
Methods,
Orthoimagery,
Raster Image,
Seward Peninsula,
Surface,
Surficial,
Surficial Geology,
Teller,
Wales,
geoscientificInformation, Fewer tags
The State of Alaska Division of Geological & Geophysical Surveys (DGGS) produced a digital surface model (DSM) and an orthorectified aerial optical image mosaic (orthoimagery) of the Resurrection Bay watershed, surrounding the city of Seward in south-central Alaska. Aerial photographs and Global Navigation Satellite System (GNSS) data were collected on August 13, 2015, and were processed using Structure-from-Motion (SfM) photogrammetric techniques to create the DSM and orthoimagery. All data are projected in UTM Zone 6 North (meters) using the NAD83 (2011; EPSG 26906) horizontal datum and NAVD88 (Geoid12A; EPOCH 2010.00) vertical datum. The project was part of an ongoing investigation of the impact of flooding,...
Tags: Aerial,
Bear Creek,
Bear Lake,
Bear Lake Glacier,
Bear Mountain, All tags...
Box Canyon Creek,
Caines Head,
Callisto Peak,
Clear Creek,
Derby Cove,
Engineering,
Engineering Geology,
Environmental,
First Lake,
Fourth of July Creek,
Geologic,
Geologic Hazards,
Geological Process,
Geology,
Geomorphology,
Godwin Creek,
Grouse Lake,
Hazards,
Japanese Creek,
Lakes,
Likes Creek,
Little Bear Lake,
Lost Creek,
Lost Lake Trail,
Lowell Creek,
Lowell Point,
Marathon Mountain,
Methods,
Mount Alice,
Mount Benson,
Mount Eva,
Orthoimagery,
Phoenix Peak,
Preachers Pond,
Prospect Glacier,
Race Point,
Raster Image,
Resurrection Bay,
Resurrection River,
Salmon Creek,
Sawmill Creek,
Scheffler Creek,
Second Lake,
Seward,
Slope,
Spring Creek,
Spruce Creek,
Surface,
Surficial,
Surficial Geology,
The Lagoon,
Thumb Cove,
Tiehacker Mountain,
Tonsina Creek,
Tonsina Point,
Vegetation,
Water,
Woodrow,
geoscientificInformation, Fewer tags
In support of the proposed Susitna-Watana Hydroelectric Project, the Alaska Division of Geological & Geophysical Surveys (DGGS) developed a Geographic Information System (GIS)-based geologic compilation of published and unpublished maps for twelve, inch-to-mile (1:63,360-scale) quadrangles encompassing the proposed hydroelectric project footprint, including the anticipated reservoir and surrounding area. DGGS geologists reviewed and analyzed existing geologic mapping for quality and completeness, and the maps were converted for use in GIS. The conversion process included scanning and georeferencing the original hard-copy map documents, creating a geodatabase, digitizing the geologic data, assigning attributes, and...
Tags: Bedrock Geologic Map,
Bedrock Geology,
Generalized,
Geodatabase,
Geologic Map, All tags...
Geology,
Gis,
Healy Quadrangle,
Hydropower,
Project Report,
Regional,
Surficial,
Surficial Geologic Map,
Surficial Geology,
Susitna,
Susitna Dam,
Susitna North,
Susitna River,
Susitna-Watana Hydroelectric Project,
Talkeetna Mountains,
Talkeetna Mountains Quadrangle,
Unconsolidated Deposits,
geoscientificInformation, Fewer tags
Aerial photographs of the coastline from Wales to Teller were collected on August 27, 2015 - August 28, 2015. The photographs were processed using Structure-from-Motion (SfM) photogrammetric techniques. Global Positioning System (GPS) checkpoints were collected via a Global Navigation Satellite System (GNSS) survey conducted between August 15 and September 14, 2015. For the purposes of open access to elevation and orthoimagery datasets in coastal regions of Alaska, this collection is being released as a Raw Data File with an open end-user license. This file is a single-band, 32-bit float DSM (digital surface model) which represents surface elevations of buildings, vegetation, and uncovered ground surfaces in meters...
Tags: Coastal,
Coastal Erosion,
Coastal and River,
Engineering,
Engineering Geology, All tags...
Environmental,
Geologic,
Geologic Hazards,
Geological Process,
Geology,
Geomorphology,
Hazards,
Hillshade Image,
Methods,
Orthoimagery,
Raster Image,
Seward Peninsula,
Surface,
Surficial,
Surficial Geology,
Teller,
Wales,
geoscientificInformation, Fewer tags
Aerial photographs of the coastline from Nome to Elim were collected on August 23, 2015. The photographs were processed using Structure-from-Motion (SfM) photogrammetric techniques. Global Positioning System (GPS) checkpoints were collected via a Global Navigation Satellite System (GNSS) survey conducted between August 15 and September 14, 2015. For the purposes of open access to elevation and orthoimagery datasets in coastal regions of Alaska, this collection is being released as a Raw Data File with an open end-user license. Orthoimages contain 4-band, 8-bit, unsigned raster data (red/green/blue/no data; file format-GeoTIFF; source-Fairbanks Fodar) with 20 cm GSD. No-data values are found in band 4 or shown as...
Tags: Bear Creek,
Bonanza River,
Cape Darby,
Cape Nome,
Coastal, All tags...
Coastal Erosion,
Coastal and River,
Daniels Creek,
Dry Creek,
Elim,
Engineering,
Engineering Geology,
Environmental,
Fish River,
Flambeau River,
Geologic,
Geologic Hazards,
Geological Process,
Geomorphology,
Golovin,
Hazards,
Hillshade Image,
Iron Creek,
Kachauik River,
Kwiniuk River,
Methods,
Moses Point Fishing Village,
Mudyutok River,
Nome,
Nome River,
Orthoimagery,
Port Safety,
Portage Creek,
Raster Image,
Rock Creek,
Snake River,
Solomon,
Solomon River,
Surface,
Surficial,
Surficial Geology,
White Mountain,
Yuonglik River,
geoscientificInformation, Fewer tags
This map illustrates the distribution of unconsolidated deposits and undifferentiated bedrcok units in the Salcha River-Pogo area.It was prepared by interpretation of 1:63,360-scale false-color infrared aerial photographs taken July 1978, July 1979, and August 1981, and is locally verified by ground observations during field visits.
Tags: Big Delta Quadrangle,
Goodpaster River,
Pogo,
Salcha River,
alluvium, All tags...
colluvium,
debris flow deposit,
glacial drift,
landslide deposit,
pingos,
retransported loess,
surficial geology,
terrace,
unconsolidated deposits, Fewer tags
During 2009, the Alaska Division of Geological & Geophysical Surveys continued a program, begun in 2006, of reconnaissance mapping of surficial geology in the proposed natural-gas pipeline corridor through the upper Tanana River valley. The study area is a 12-mi-wide (19.3-km-wide) area that straddles the Alaska Highway from the western boundaries of the Tanacross B-3 and A-3 quadrangles near Tetlin Junction eastward to the eastern boundaries of the Nabesna D-1 and C-1 quadrangles along the Canada border. Mapping during 2008-2009 in the Tanacross and Nabesna quadrangles linked with the mapping completed in the Tanacross, Big Delta and Mt. Hayes quadrangles in 2006-2008. Surficial geology was initially mapped in...
Tags: Alaska Highway Corridor,
Alaska Range,
Alaska, State of,
Beaver Creek,
Canada, All tags...
Chisana River,
Dunes,
Eolian,
Geologic Hazards,
Geologic Map,
Geologic Materials,
Geological Process,
Geology,
Geomorphology,
Midway Lake,
Nabesna,
Nabesna Quadrangle,
Nabesna River,
Northway,
Northway Junction,
Proposed Natural Gas Pipeline,
Remote Sensing,
Scottie Creek,
Surficial,
Surficial Geology,
Tanacross,
Tanacross Quadrangle,
Tanana River,
Tetlin Junction,
Tetlin National Wildlife Refuge,
Transportation Corridor,
Unconsolidated Deposits,
geoscientificInformation, Fewer tags
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