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Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Contacts Alaska Division of Geological & Geophysical Surveys Hendricks, M.D. Kinsman, N.E.M. Overbeck, J.R. Athey, J.E. More... Tag Types Theme (9) Place (9) Tag Schemes Alaska Division of Geological & Geophysical Surveys (9) ISO 19115 Topic Category (9) View Results as: JSON ATOM CSV

Major-oxide and trace-element geochemical data from rocks collected in the Tanacross C-1, D-1, and D-2 quadrangles, Alaska in 2017 From June 12-21, 2017, the Alaska Division of Geological & Geophysical Surveys (DGGS) geologists carried out geologic mapping and geochemical sampling in the northeastern Tanacross D-1, and parts of the C-1, and D-2 quadrangles. The project area lies within the Yukon-Tanana Uplands, and encompasses the boundary between Fortymile and Lake George assemblages. It includes porphyry copper-molybdenum-gold deposits and prospects including: Taurus, Fishhook (also known as SW Pika), and Pika Canyon, and is adjacent to the Fortymile Mining District to the north. Highlights of this geochemical report include sampling and characterization of the Pika Canyon, Fishhook, and Taurus prospects. This dataset contains four samples... Tags: Analyses, Analyses and Sampling, Analytical Lab Results, Analytical Results, Base Metals, All tags... Chemistry, Copper, Critical Minerals, Dewey Creek, Divide Mountain, Economic Geology, Economic Study, Exploration, Fishhook, Fortymile Mining District, Geochemical Data, Geochemical Surveys, Geochemistry, Geologic, Geology, Gold, Lab Methods, Lead, Liberty Creek, Major Oxides, Metals, Methods, Mineral Assessment, Mineral Deposit, Mineral Localities, Mineral Prospect, Mineral Resources, Minerals, Mining, Minor Oxides, Non-Metals, Ore Deposit, Ores, Pika Canyon Prospect, Porphyry, Precious Metals, Prospecting Sites, Rare Earth Elements, Ree, Resource Assessment, Resource Information, Resources, Sample Location, Silver, Stream Sediments, Tanacross Quadrangle, Taurus Prospect, Trace Elements, Trace Geochemical, Trace Metals, geoscientificInformation, Fewer tags Photogrammetric digital surface models and orthoimagery for the continuous coastline, Wales to Platinum, Alaska, segment C: Nome to Elim 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 Photogrammetry-derived digital surface model and orthoimagery of land areas near Resurrection Bay, Alaska 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 Photogrammetric digital surface models and orthoimagery for the continuous coastline, Wales to Platinum, Alaska, segment A: Wales to Teller 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 Major-oxide and trace-element geochemical data from rocks collected in the Richardson mining district, Big Delta Quadrangle, Alaska During the 2017 field season, geologists from the Alaska Division of Geological & Geophysical Surveys (DGGS) conducted geologic mapping and sampling of part of the Richardson Mining District southeast of Fairbanks, including parts of the Big Delta B-4, B-5, and C-5 quadrangles. The project area is about 30 miles west of the Pogo gold mine and covers the currently active Montecristo and Uncle Sam gold-exploration properties. The goal of DGGS's work in this area is to conduct a mineral-resource assessment and to build an improved understanding of the area's geology and controls on gold mineralization to facilitate industry exploration targeting. This report is based on 17 days of fieldwork completed June 23-July 3,... Tags: Analyses, Analyses and Sampling, Analytical Lab Results, Analytical Results, Base Metals, All tags... Big Delta Quadrangle, Chemistry, Critical Minerals, Economic Geology, Economic Study, Exploration, Geochemical Data, Geochemical Surveys, Geochemistry, Geologic, Geology, Lab Methods, Major Oxides, McCoy Creek, Metals, Methods, Mineral Assessment, Mineral Deposit, Mineral Localities, Mineral Prospect, Mineral Resources, Minerals, Mining, Minor Oxides, Minton Creek, Monte Cristo Creek, Non-Metals, Ore Deposit, Ores, Precious Metals, Prospecting Sites, Resource Assessment, Resource Information, Resources, Richardson Mining District, Sample Location, Stream Sediments, Trace Elements, Trace Geochemical, Trace Metals, Uncle Sam prospect, geoscientificInformation, Fewer tags Photogrammetry-derived digital surface model and orthoimagery of land areas near Resurrection Bay, Alaska 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 Photogrammetric digital surface models and orthoimagery for the continuous coastline, Wales to Platinum, Alaska, segment A: Wales to Teller 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 Photogrammetric digital surface models and orthoimagery for the continuous coastline, Wales to Platinum, Alaska, segment C: Nome to Elim 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 Major-element glass compositions of tephra from the circa 3.6 ka eruption of Aniakchak volcano, Alaska Peninsula, Alaska 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 effort to identify and characterize tephra deposits from the largest eruptions in Alaska for use as geochronological marker horizons. Aniakchak is one of at least 29 volcanoes in Alaska that has had multiple large tephra-producing eruptions. Other deposit and sample metadata including geospatial distributions of this tephra deposit are held in the Alaska Volcano Observatory's online database, the Geologic Database of Information on Volcanoes in Alaska (GeoDIVA), and will be linked to these new geochemical data once published. Products included... Tags: Alaska Peninsula, Analyses, Analyses and Sampling, Analytical Lab Results, Analytical Results, All tags... Aniakchak, Archaeology, Caldera, Coastal, Geochemistry, Geologic, Geology, Glass, Hazards, Methods, Minerals, Tephra, Tephrochronology, Tephrostratigraphy, Volcanic, Volcanoes, Volcanology, geoscientificInformation, Fewer tags