AndreaBozzo/ceres-open-data-index huggingface dataset:
High-resolution lidar data for infrastructure corridors, Sagavanirktok Quadrangle, Alaska

In advance of design, permitting, and construction of a pipeline to deliver North Slope natural gas to out-of-state customers and Alaska communities, the Division of Geological & Geophysical Surveys (DGGS) has acquired lidar (light detection and ranging) data along proposed pipeline routes, nearby areas of infrastructure, and regions where significant geologic hazards have been identified. Lidar data will serve multiple purposes, but have primarily been collected to (1) evaluate active faulting, slope instability, thaw settlement, erosion, and other engineering constraints along proposed pipeline routes, and (2) provide a base layer for the state-federal GIS database that will be used to evaluate permit applications and construction plans. The digital surface model represents percent canopy cover (between 0 and 1). Cover metric was computed in Fusion (McGaughey 2007), which assesses the percentage of total first returns within each cell that were returned from the canopy. For more specifics on Fusion Gridmetric outputs see the fusion manual (page 56).

Tags: alaska, alaska highway corridor, alaska pipeline, gasline, geomorphology, lidar, lidar canopy cover, pipeline, proposed natural gas pipeline, raster image, remote sensing, sagavanirktok quadrangle, state of, trans-alaska pipeline
Organization: State of Alaska
High-resolution lidar data for infrastructure corridors, Fairbanks Quadrangle, Alaska

In advance of design, permitting, and construction of a pipeline to deliver North Slope natural gas to out-of-state customers and Alaska communities, the Division of Geological & Geophysical Surveys (DGGS) has acquired lidar (Light Detection and Ranging) data along proposed pipeline routes, nearby areas of infrastructure, and regions where significant geologic hazards have been identified. Lidar data will serve multiple purposes, but have primarily been collected to (1) evaluate active faulting, slope instability, thaw settlement, erosion, and other engineering constraints along proposed pipeline routes, and (2) provide a base layer for the state-federal GIS database that will be used to evaluate permit applications and construction plans. Bare-earth digital elevation models (DEM) represent the earth's surface with all vegetation and human-made structures removed.

Tags: alaska, alaska highway corridor, alaska pipeline, bare-earth digital elevation model (dem), fairbanks quadrangle, gasline, geomorphology, lidar, proposed natural gas pipeline, raster image, remote sensing, state of, trans-alaska pipeline
Organization: State of Alaska
High-resolution lidar data for infrastructure corridors, Talkeetna Quadrangle, Alaska

In advance of design, permitting, and construction of a pipeline to deliver North Slope natural gas to out-of-state customers and Alaska communities, the Division of Geological & Geophysical Surveys (DGGS) has acquired LiDAR (Light Detection and Ranging) data along proposed pipeline routes, nearby areas of infrastructure, and regions where significant geologic hazards have been identified. LiDAR data will serve multiple purposes, but have primarily been collected to (1) evaluate active faulting, slope instability, thaw settlement, erosion, and other engineering constraints along proposed pipeline routes, and (2) provide a base layer for the state-federal GIS database that will be used to evaluate permit applications and construction plans. The dataset represents all classified laser returns from the LiDAR survey and their associated geospatial coordinates.

Tags: aerial geology, alaska, digital elevation model, digital surface model (dsm), geologic hazards, geology, geomorphology, hazards, holocene, lidar, lidar las file format, point cloud data, remote sensing, slope instability, state of, talkeetna quadrangle, trans-alaska pipeline
Organization: State of Alaska
Shoreline change at Alaska coastal communities, Egegik, Alaska

The Division of Geological & Geophysical Surveys has analyzed long-term shoreline change at 48 Alaska communities. Shoreline datasets were compiled from previously published U.S. Geological Survey assessments and created from historical and recent aerial images by the Alaska Division of Geological & Geophysical Surveys. Shorelines were analyzed to calculate shoreline change rates every 25 meters along coastlines and tidally influenced riverbanks using the Digital Shoreline Analysis System (DSAS; Himmelstoss and others, 2018). The geodatabase for each community includes shoreline positions, the alongshore baseline used to cast transects, and transects that include shoreline change rates and statistics. All files can be downloaded free of charge from the Alaska Division of Geological & Geophysical Surveys website (http://doi.org/10.14509/30552).

Tags: aerial, aerial photography, alaska, coastal, dggs, egegik, emergency preparedness, engineering, environmental, erosion, flood, floodplain, geology, hazards, inundation, marine geology, outreach, sea level changes, shelf, shoreface, storm surge, surface, tides, topography, water
Organization: State of Alaska
Alaska merged geophysical data grids

Merged grids of residual magnetic intensity, digital terrain model, and apparent resistivity compiled from the Tanacross, Ladue, Western Fortymile, and Fortymile geophysical surveys. The grids were compiled by Benjamin Drenth (USGS). The data, as well as additional metadata, are available from the Alaska Division of Geological & Geophysical Surveys website: http://dggs.alaska.gov/pubs/id/29555

Tags: airborne geophysical survey, alaska, electromagnetic data, electromagnetic survey, geophysical map, geophysical survey, geophysics, geophysics search tag, gridded data, magnetic data, magnetic survey, magnetics, state of
Organization: State of Alaska
High-resolution lidar data for infrastructure corridors, Tyonek Quadrangle, Alaska

In advance of design, permitting, and construction of a pipeline to deliver North Slope natural gas to out-of-state customers and Alaska communities, the Division of Geological & Geophysical Surveys (DGGS) has acquired LiDAR (Light Detection and Ranging) data along proposed pipeline routes, nearby areas of infrastructure, and regions where significant geologic hazards have been identified. LiDAR data will serve multiple purposes, but have primarily been collected to (1) evaluate active faulting, slope instability, thaw settlement, erosion, and other engineering constraints along proposed pipeline routes, and (2) provide a base layer for the state-federal GIS database that will be used to evaluate permit applications and construction plans. The dataset represents all classified laser returns from the LiDAR survey and their associated geospatial coordinates.

Tags: aerial geology, alaska, digital elevation model, digital surface model (dsm), geologic hazards, geology, geomorphology, hazards, holocene, lidar, lidar las file format, point cloud data, remote sensing, slope instability, state of, trans-alaska pipeline, tyonek quadrangle
Organization: State of Alaska
Palynological analysis of 228 outcrop samples from the Kenai, Seldovia, and Tyonek quadrangles, Cook Inlet region, Alaska

The palynological samples included in this report were collected as part of the Alaska Department of Natural Resources' (Alaska Division of Geological & Geophysical Surveys (DGGS) and Alaska Division of Oil & Gas (DOG)) Cook Inlet Basin Analysis program. The focus of this program is to evaluate the stratigraphic trap potential and reservoir quality of coal-bearing Cenozoic strata in upper Cook Inlet basin and the reservoir quality of Mesozoic strata throughout the basin. The samples included in this report were collected in the Tyonek, Kenai, and Seldovia Quadrangles from September 2006 through July 2010. All samples in this report were processed by Russ Harms in Medicine Toenail Alberta, Canada. Prepared slides of recovered palynomorphs were analyzed by Dr. Pierre Zippi (Biostratigraphy.com, LLC). Sample collectors include Paul Decker (DOG), Emily Finzel (Purdue University); Bob Gillis (DGGS), Trystan Herriott (DGGS), Dave LePain (DGGS), Dave Mauel (DGGS), Jacob Mongrain (UAF and DGGS), and Marwan Wartes (DGGS).

Tags: beluga formation, cenozoic, cook inlet, cook inlet basin, hemlock formation, kenai quadrangle, mesozoic, palynology, seldovia quadrangle, statemap project, sterling formation, tyonek formation, tyonek quadrangle, west foreland formation
Organization: State of Alaska
High-resolution lidar data for infrastructure corridors, Healy Quadrangle, Alaska

In advance of design, permitting, and construction of a pipeline to deliver North Slope natural gas to out-of-state customers and Alaska communities, the Division of Geological & Geophysical Surveys (DGGS) has acquired lidar (light detection and ranging) data along proposed pipeline routes, nearby areas of infrastructure, and regions where significant geologic hazards have been identified. Lidar data will serve multiple purposes, but have primarily been collected to (1) evaluate active faulting, slope instability, thaw settlement, erosion, and other engineering constraints along proposed pipeline routes, and (2) provide a base layer for the state-federal GIS database that will be used to evaluate permit applications and construction plans. Hillshade (shaded relief) images, produced from bare-earth DEMs provide a visual representation of topographic relief.

Tags: alaska, alaska highway corridor, alaska pipeline, gasline, geomorphology, healy quadrangle, hillshade image, lidar, proposed natural gas pipeline, remote sensing, shaded relief, state of, topographic map, trans-alaska pipeline
Organization: State of Alaska
Shaw Creek and Shawnee Peak airborne magnetic and radiometric geophysical survey

The Shaw Creek and Shawnee Peak airborne magnetic and radiometric geophysical survey covers parts of the Big Delta and Eagle quadrangles northeast of Delta Junction, Alaska. Magnetic and radiometric data were collected with a helicopter July 4-25, 2020 by MPX Geophysics LTD. A total of 10,100 line kilometers were collected over approximately 2,600 square kilometers. The magnetometer was mounted to a forward-facing fixed boom (stinger). The radiometric crystals were located in the cabin of the helicopter. Data were collected in eight named blocks. Mertie Mountains, Shaw Creek, and Volkmar River have a line spacing of 400 meters (m) and a mean ground clearance of 130 m. Stoneboy has a line spacing of 200 m and a mean ground clearance of 80 m. Eagle, Echo, Healy, and LMS-X have a line spacing of 100 m and a mean ground clearance of 80 m. The data, as well as additional metadata, are available from the DGGS website: http://doi.org/10.14509/30551.

Tags: aeromagnetic, aeromagnetic data, aeromagnetic map, aeromagnetic survey, analytic signal, antimony creek, big swede creek, black mountain, boulder creek, california creek, central creek, corda creek, delta river mining district, divide creek, eagle creek, exploration, fairbanks mining district, geologic, geology, geophysical survey, geophysics, geophysics search tag, gilles creek, glacier creek, goodpaster mining district, goodpaster river, granite creek, gridded data, grizzly bear mine, healy river, helicopter survey, horse creek, indian creek, johnson creek, king creek, last chance creek, line data, magnetic data, magnetic survey, magnetics, michigan creek, mineral exploration, mineral resources, mount harper, porcupine creek, progressive creek, radiometric survey, radiometrics, rapid creek, remote sensing, richardson mining district, rock creek, serpentine creek, shaw creek, shaw creek dome, shawnee peak, slate creek, stone boy creek, summit creek, tanana river, tibbs creek, volkmar river, wolverine creek
Organization: State of Alaska
Geologic map of the Styx River area, Lime Hills C-1 Quadrangle, Western Alaska Range, Alaska

Report of Investigation 2020-3, Geologic map of the Styx River area, Lime Hills C-1 Quadrangle, Western Alaska Range, Alaska, presents a 1:63,360-scale geologic map of the Styx River area (Lime Hills C-1 Quadrangle) in the western Alaska Range. The Styx River map area is underlain by Late Jurassic to Late Cretaceous Kahiltna assemblage sedimentary rocks. Major plutons include the Late Cretaceous South Fork gabbro and Mount Estelle monzogranite, the Paleocene Crystal Creek granite, McKinley sequence granites, Styx River granite, and the Eocene Merrill Pass granite. Major oxide and trace element data helped differentiate distinct compositions of plutons and refine map contacts. Late Cretaceous granodiorite to gabbro plutons contrast in composition with granites from the Paleocene. Previously unmapped mafic dikes trend generally northwest, while major high-angle fault sets trend northwest, north-south, and north-northeast. Mineralization in the Lime Hills C-1 Quadrangle is dominated by: 1) Au-Cu mineralization associated with the margins of the latest Cretaceous Mount Estelle pluton; 2) widely scattered Ag-bearing polymetallic occurrences associated with dikes, veins, and faults of a range of ages and; 3) the Miocene-age Copper Joe porphyry copper prospect. The dataset contains geologic, structural, stratigraphic, and geochronologic data organized according to the GeMS and AK GeMS mapping schemas. The complete report, geodatabase, and ESRI fonts and style files are available from the DGGS website: http://doi.org/10.14509/30424.

Tags: alaska range, alluvial, andesite, aniak mining district, argillite, basalt, bedrock, bedrock geologic map, bedrock geology, calcite, chalcedony, chert, chlorite, chrondrites, clay, conglomerate, copper, copper joe prospect, correlation, cretaceous, crystal creek, dggs, eocene, fan, farewell terrane, faulting, faults, feldspar, felsic, folding, folds, gabbro, gems db l3 compliant, gems db v1pt1, geochemical data, geochemistry, geochronology, geologic, geologic map, geological process, geology, glacial, glaciers, gold, granite, granodiorite, graywacke, holocene, hornblende, jurassic, late cretaceous, lead, lime, lime hills, magnetic susceptibility, magnetite, mcgrath mining district, megafossils, metals, mica, mineral assessment, mineral deposit, mineral resources, mineralogy, minerals, miocene, molybdenum, monzonite, moraines, mount estelle, mudstone, neogene, oligocene, outwash, paleogene, pebble, petrology, plagioclase, pleistocene, plutonic, plutons, porphyry, potassium, prehnite, pumice, pyrite, quartz, redoubt mining district, replacement, resource assessment, resource information, rhyolite, rocks, sand, sandstone, sedimentary, sericite, silica, silt, siltstone, slate, solifluction, structural geology, structure, styx river, surface, surficial, syenite, talus, till, tordrillo mountains, tuff, turbidite, uranium, vein deposit, volcanic, wrangellia terrane, yentna mining district, zircon
Organization: State of Alaska
Geochemical, major-oxide, minor-oxide, trace-element and carbon data from rocks collected in 2011 in the Moran area, Tanana and Melozitna Quadrangles, Alaska

Mineral-resources personnel from the Alaska Division of Geological & Geophysical Surveys carried out a geologic field survey, including mapping and sampling in the Moran area in the Tanana A-6 and B-6 quadrangles, and the Melozitna A-1, A2, B-1, and B-2 quadrangles, Alaska from June 17 to August 15, 2011. The fieldwork provides basic information critical to building an understanding of Alaska geology and is part of an integrated program of airborne geophysical surveys followed by geologic mapping. During 2011, 212 rock samples were collected for geochemical trace-element analysis, 58 rock samples were collected for whole-rock (major- and minor-oxide and petrogenetically important trace elements tables) analyses, and two samples were collected for analysis of non-carbonate carbon content. Additionally, 352 polished rock slabs were analyzed for whole-rock and petrogenetically important trace elements.

Tags: alaska, cretaceous, devonian, geochemical data, geochemistry, gold, grant creek, jurassic, kokrines hills, little melozitna hot springs, major oxides, melozitna mining district, melozitna quadrangle, minor oxides, moran creek, moran dome, paleozoic, platinum group elements, proterozoic, ruby terrane, state of, statemap project, tanana quadrangle, trace elements, trace geochemical, trace metals, yukon river
Organization: State of Alaska
High-resolution lidar data for infrastructure corridors, Bettles Quadrangle, Alaska

In advance of design, permitting, and construction of a pipeline to deliver North Slope natural gas to out-of-state customers and Alaska communities, the Division of Geological & Geophysical Surveys (DGGS) has acquired lidar (light detection and ranging) data along proposed pipeline routes, nearby areas of infrastructure, and regions where significant geologic hazards have been identified. Lidar data will serve multiple purposes, but have primarily been collected to (1) evaluate active faulting, slope instability, thaw settlement, erosion, and other engineering constraints along proposed pipeline routes, and (2) provide a base layer for the state-federal GIS database that will be used to evaluate permit applications and construction plans.Lidar intensity images depict intensity values of the lidar-laser returns.

Tags: alaska, alaska highway corridor, alaska pipeline, bettles quadrangle, gasline, geomorphology, lidar, lidar intensity image, proposed natural gas pipeline, remote sensing, shaded relief, state of, topographic map, trans-alaska pipeline
Organization: State of Alaska
Photogrammetry-derived digital surface model and orthoimagery of Valdez Glacier ice-dammed lake, Valdez, Alaska, October 15, 2014

The State of Alaska Division of Geological & Geophysical Surveys (DGGS) produced a digital surface model (DSM) and an orthorectified aerial image over an ice-dammed lake formed by Valdez Glacier. Aerial photographs and Global Navigation Satellite System (GNSS) data were collected on October 15, 2014, and were processed using Structure-from-Motion (SfM) photogrammetric techniques to create a DSM and orthoimagery. For the purpose of enabling open access to geospatial datasets in Alaska, this collection is being released as a Raw Data File with an open end-user license. All files can be downloaded free of charge from the DGGS website (http://doi.org/10.14509/30181).

Tags: coastal, coastal and river, digital surface model (dsm), engineering, engineering geology, environmental, flood, geologic, geologic hazards, geological process, glacial, glacial geomorphology, glacial lake, glacial processes, glacier flood, glacier outburst flood, glaciers, glaciology, ice, lake level, lakes, structure from motion, surface, valdez, water
Organization: State of Alaska
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 with gold in excess of 0.1 parts per million (ppm) in several different locations, including two samples from Fishhook with 2.15 ppm and 0.697 ppm gold, respectively (17MBW119, 17MBW130), and a sample with 4,420 ppm silver and greater than 30 percent lead (17MLW002) collected nearby Pika Canyon. The DGGS Tanacross project area includes a section of Paleozoic and Mississippian- to Devonian-age, metasedimentary and metavolcanic rocks, as well as Jurassic(?) to Tertiary intrusive and volcanic rocks. Major- and trace-element geochemical analyses were obtained for metamorphic rocks to distinguish between igneous and sedimentary protoliths, and for igneous rocks to characterize and differentiate Mesozoic and Cenozoic rocks in the area. The analytical data tables associated with this report are available in digital format as comma-separated value (CSV) files. Additional details about the organization of information are noted in the accompanying metadata file. All files can be downloaded from the DGGS website (http://doi.org/10.14509/29778).

Tags: analyses, analyses and sampling, analytical lab results, analytical results, base metals, chemistry, copper, critical minerals, dewey creek, divide mountain, economic geology, economic study, exploration, fishhook, fortymile assemblage, fortymile mining district, geochemical data, geochemical surveys, geochemistry, geologic, geology, gold, lab methods, lake george assemblage, 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, yukon-tanana upland
Organization: State of Alaska
40Ar/39Ar ages from the Tyonek D-6 quadrangle and parts of Tyonek D-7, Tyonek D-5 and Tyonek C-6 quadrangles, Alaska

40Ar/39Ar data from plutonic and volcanic samples collected during preliminary mapping of the Tyonek D-6 and parts of Tyonek D-5, D-7 and C-6 quadrangles yield results indicating three discrete igneous events at about 55, 60 and 68 Ma. Igneous clasts from a boulder conglomerate retain Early Cretaceous ages.

Tags: 40ar/39ar, age dates, cretaceous, early cretaceous, geochronology, geology, paleocene, tyonek quadrangle
Organization: State of Alaska
Major-oxide and trace-element geochemical data from rocks collected in 2010 in the Tyonek Quadrangle, Alaska

Cook Inlet has been recognized as the second-largest petroleum province in Alaska, second only to the North Slope. The south-central Tyonek Quadrangle is an area of significant geologic interest because it is the only location in Cook Inlet where the entire producing stratigraphy of the basin is exposed on the surface. Additionally, this area encompasses the structural boundary between the forearc basin and its sediment source rocks. To better understand the petroleum system and the geologic relationships between the exhumed arc intrusive rocks and adjacent Cenozoic stratigraphy of the Cook Inlet forearc basin, during the summer of 2010 the Alaska Division of Geological & Geophysical Surveys conducted a federally-funded geologic field mapping project. As a part of this project DGGS collected 44 rock samples for geochemical analyses from Late Cretaceous and Paleogene intrusive and volcanic lithologies that compose part of the Alaska-Aleutian Range batholith and arc. Major-oxide, minor-oxide, and trace-element geochemical data presented here provide new information about the genesis and potential mineralization of igneous rocks in the western Neacola and southern Tordrillo mountains. The analytical data tables associated with this report are available in digital format as comma-separated value (CSV) files.

Tags: alaska range, analyses, analyses and sampling, analytical lab results, analytical results, bedrock, bedrock geology, chemistry, cook inlet, cook inlet basin, exploration, geochemical data, geochemical surveys, geochemistry, geology, igneous, igneous rocks, lab methods, magmatic arc, major oxides, minor oxides, neacola mountains, petrology, resources, rocks, sample location, statemap project, tordrillo mountains, trace elements, trace geochemical, tyonek, tyonek quadrangle, volcanic, volcanic arc, volcanic rocks
Organization: State of Alaska