AndreaBozzo/ceres-open-data-index huggingface dataset:
Analyses of historic U.S. Bureau of Mines samples for geochemical trace-element and rare-earth-element data from the Porcupine River drainage, northeastern Alaska

This report and digital data release presents 90 new geochemical analyses on historic U.S. Bureau of Mines (USBM) samples, including 56 rock, 16 sediment, 5 soil, and 12 heavy mineral concentrate (pan concentrate) samples, as well as 1 sample of indeterminate type. Some of these samples were originally collected by the USBM as part of their mineral investigations in the Porcupine River drainage, northeastern Alaska, and a portion of the samples were collected as part of the National Uranium Resource Evaluation. Historic USBM sample materials were retrieved by DGGS from the DGGS Geologic Materials Center (GMC), where the USBM samples were transferred as part of the federally funded Minerals Data and Information Rescue in Alaska (MDIRA) program in the late 1990s and early 2000s. The text and analytical data and tables associated with this report are being released in digital format as PDF files and .csv files. We provide analytical data, detection limits and, when available, the method documentation provided to us by the lab. We also provide the sample location in geographic coordinates, the sample material cited by the originating literature, a reference to the originating report, and the type of sample material that was obtained from the archive and sent to the lab.

Tags: analyses and sampling, base metals, critical minerals, economic geology, economic study, exploration, geochemical surveys, geochemistry, geology, heavy metals, mineral assessment, mineral deposit, mineral development, mineral localities, mineral prospect, mineral resources, minerals, non-metals, platinum group elements, precious metals, rare earth elements, ree, resource assessment, resource information, resources, strategic and critical minerals assessment project, strategic minerals, trace elements, trace geochemical, trace metals
Organization: State of Alaska
Quaternary faults and folds in Alaska: A digital database

This dataset contains information and locations on faults and associated folds in Alaska that are believed to be sources of M>6 earthquakes during the Quaternary (the past 1,600,000 years). The dataset is intended to part of the USGS archive for historic and ancient earthquake sources used in current and future probabilistic seismic-hazard analyses. This dataset presents a single source that summarizes important information on paleoseismic (ancient earthquakes) parameters including, age of most recent deformation, slip rate, slip sense dip direction, and accuracy of original mapping. These data are compiled from hundreds of journal articles, maps, theses, and other documents, as referenced herein. The geospatial data coverage for the state of Alaska is designed to serve a variety of needs, both in terms of the user community and methods of delivering the data.

Tags: active fault, alaska, earthquake, faulting, faults, folds, hazards, paleoseismology, quaternary, state of
Organization: State of Alaska
Project report, interpretation maps, EM anomalies, stacked multi-channel profiles, and other products of the airborne geophysical survey for the Southern Dishna River, Fox Hills, and Beaver Creek survey areas, Iditarod, Ophir, and Holy Cross quadrangles, western Alaska

This digital publication, GPR 2014-3, contains CGG's analysis and interpretation of data produced from airborne geophysical surveys published by DGGS in 2013 (GPR 2013-1) for the Southern Dishna River, Fox Hills, and Beaver Creek survey areas. These three survey areas are informally referred to as the Five Spot survey in places in this publication. CGG's frequency-domain DIGHEM V system was used for the EM data. GPR 2014-3 includes (1) CGG's project report with interpretation and detailed EM Anomalies, and (2) Multi-channel stacked profiles in pdf format. Interpretation maps and EM anomalies are provided in various formats (e.g., Geotiffs, KMZs, and others) and are listed in detail in GPR2014-003 ReadMe (.txt and .pdf). Supporting files include GPR2014_003_ReadMe.txt, gpr2014_003_browsegraphic.pdf, and individual pdfs of some of the items in the browsegraphic file.

Tags: aeromagnetic map, aeromagnetic survey, airborne geophysical survey, alaska, aniak mining district, apparent resistivity data, dighem v em system, electromagnetic anomalies, electromagnetic data, electromagnetic survey, geophysics, hem survey, holy cross quadrangle, iditarod mining district, iditarod quadrangle, iditarod-nixon fork fault, innoko mining district, interpretation, magnetic survey, magnetics, ophir quadrangle, state of
Organization: State of Alaska
Storm impact survey data for selected Alaska coastal communities in response to Extra-Tropical Cyclone Merbok, September 2022

Storm impact survey data for selected Alaska coastal communities in response to Extra-Tropical Cyclone Merbok, September 2022, Raw Data File 2022-14, presents Global Navigation Satellite System (GNSS) high-water mark (HWM) locations and elevations, coastal profile transects, observed erosion evidence, and ground elevation points for the communities of Golovin, Hooper Bay, Newtok, Nome, Shaktoolik, Stebbins, and Teller, Alaska. These data were collected in the wake of Extra-Tropical Storm Merbok between September 19 and September 23, 2022 by Alaska Division of Geological & Geophysical Surveys (DGGS), with assistance from the Alaska Division of Mining, Land and Water (DMLW) and the U.S. Geological Survey (USGS). The GNSS positional data were collected to assess coastal impacts from the storm. The data are available from the DGGS website: http://doi.org/10.14509/30909.

Tags: beach deposits, climate, climate change, coastal, coastal and river, coastal erosion, dggs, engineering, engineering geology, environment, environmental, geologic, geologic hazards, geological process, geology, geotechnical, holocene, inundation, newtok, project report, sea level changes, sea level rise, seward peninsula, southwest alaska, storm deposit, storm surge, surface, surface water, surficial, surficial geology, topography, water
Organization: State of Alaska
Photogrammetric digital surface models and orthoimagery of Westchester Lagoon, December 5, 2018

The State of Alaska Division of Geological & Geophysical Surveys (DGGS) produced digital surface models (DSMs) and orthorectified aerial imagery (orthoimagery) over selected locations in the greater Anchorage area following the Mw 7.1 November 30, 2018, Anchorage earthquake. We selected areas of interest (AOIs) based on initial damage reports from the Alaska Department of Transportation & Public Facilities (DOT&PF) and the United States Geological Survey (USGS) in order to document earthquake effects. Aerial photographs collected December 5-6, 2018, were processed using Structure-from-Motion (SfM) photogrammetric techniques to create sub-meter DSMs and orthoimagery. This digital data set covers Westchester Lagoon and was collected on December 5, 2018. These data document ground conditions immediately following the 2018 Mw 7.1 Anchorage earthquake. For the purposes of open access to elevation and orthoimagery data sets throughout Alaska, this collection is being released as a Raw Data File with an open end-user license. The data and the data acquisition report are available from the DGGS website: https://elevation.alaska.gov/, http://doi.org/10.14509/30284.

Tags: aerial photography, anchorage, digital surface model (dsm), earthquake related hazards, earthquake related slope failure, elevation, engineering, fracturing, geologic, geologic hazards, geological process, geology, geomorphology, geotechnical, hazards, orthoimagery, photogrammetry, raster image, structure from motion, surficial geology, topography
Organization: State of Alaska
Alaska merged geophysical data grids

Merged grids of residual magnetic intensity and apparent resistivity compiled from the Beaver Creek, Fox Hills, Southern Dishna River, Aniak, Sleetmute, Iditarod geophysical surveys.

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
Geologic map of Mount Chiginagak volcano, Alaska

Report of Investigation 2017-10, Geologic map of Mount Chiginagak volcano, Alaska, provides 1:25,000 geologic mapping of the Chiginagak volcano. Mount Chiginagak is a hydrothermally active volcano on the Alaska Peninsula, approximately 170 km south-southwest of King Salmon, Alaska. This small stratovolcano, approximately 8 km in diameter, has erupted through Tertiary to Permian sedimentary and igneous rocks. The eruptive products of Chiginagak volcano record a history of chiefly andesite lava flows and associated block-and-ash flows. The oldest lavas exposed are Pleistocene in age and are found everywhere around the edifice except in the northeast sector, where Holocene lava flows dominate the landscape. Holocene activity has covered the northeast flank with rubbly-topped andesite lava flows that extend as far as 4.6 km from their source vent at the summit crater. The farthest-reaching volcanic deposits are on the southeast flank, where block-and-ash-flow, pyroclastic-flow, and lahar deposits extend down valley as far as 9 km from the summit. Limited exposure of deposits of a presumed plinian eruption of middle Pleistocene age indicate at least one episode of explosive activity in Chiginagak's past. This 1:25,000 scale geologic map and accompanying report document the age, geochemical, and spatial distribution of eruptive products of the Mount Chiginagak volcano. Map units are interpreted from field observations, satellite imagery interpretation, geochemical and geochronological analysis. The complete report, geodatabase, and ESRI fonts and style files are available from the DGGS website: http://doi.org/10.14509/29769.

Tags: alaska peninsula, aleutian range, analyses, chiginagak, gas, gems ncgmp09, geochemistry, geochronology, geologic, geologic map, geology, hazards, holocene, igneous, lahar, mount chiginagak, naknek formation, neoglacial, pleistocene, pumice, rocks, sediment, sulfur, surface, surficial, tephra, ugashik quadrangle, volcanic, volcanic ash, volcanic eruption, volcanic gas, volcanic rocks, volcaniclastic deposits, volcaniclastics, volcanoes, volcanology, water
Organization: State of Alaska
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 normalized digital surface models (nDSM) represent the above ground elevation of the highest laser return with all vegetation included.

Tags: alaska, alaska highway corridor, alaska pipeline, data normalized digital surface model (ndsm), gasline, geomorphology, lidar, proposed natural gas pipeline, raster image, remote sensing, sagavanirktok quadrangle, state of, trans-alaska pipeline
Organization: State of Alaska
Photogrammetry-derived digital surface model and orthoimagery of Slope Mountain, North Slope, Alaska, June 2018

The Alaska Division of Geological & Geophysical Surveys (DGGS) conducted a photogrammetric survey of Slope Mountain in northern Alaska. The survey encompasses a well-known outcrop of significance to petroleum resources on the North Slope. Global Navigation Satellite System (GNSS) data and aerial photographs were collected on 20-22 June 2018 and 24 and 26 June 2018, respectively. We processed these data using structure-from-motion (SfM) photogrammetric techniques to create a digital surface model (DSM) and orthorectified aerial optical image (orthoimage). This Raw Data File provides open access to, and an open end-user license for, these data products. All files can be downloaded free of charge from the DGGS website (http://doi.org/10.14509/30419).

Tags: digital elevation model, digital surface model (dsm), elevation, nanushuk formation, north slope, oil and gas, orthoimagery, photogrammetry, slope mountain, stratigraphy, structure from motion
Organization: State of Alaska
High-resolution lidar data for infrastructure corridors, Big Delta 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: alaska, alaska highway corridor, alaska pipeline, big delta quadrangle, gasline, geomorphology, lidar, lidar las file format, point cloud data, proposed natural gas pipeline, remote sensing, state of, trans-alaska pipeline
Organization: State of Alaska
Geologic map of the Makushin volcanic field, Unalaska Island, Alaska

Report of Investigation 97-20, Geologic map of the Makushin volcanic field, Unalaska Island, Alaska, covers most of the north end of Unalaska Island, which is the extent of the Quaternary Makushin volcanic field. This study emphasizes the Holocene-Pleistocene eruptive history of Makushin Volcano and its satellite vents. The complete report, geodatabase, and ESRI fonts and style files are available from the DGGS website: http://doi.org/10.14509/2576.

Tags: active volcanoes, aleutians west crsa coastal district, alluvial, alluvial deposits, alluvial fan, alluvium, ar-ar, basalt, bedrock, bedrock geology, c14, caldera, coastal and river, colluvial deposits, colluvium, debris avalanche, dggs, erosion, flood, gems, gems ncgmp09, geochemical surveys, geochemistry, geologic map, geology, granodiorite, holocene, lava flow, major oxides, makushin volcano, pakushin cone, pleistocene, pyroclastic fall, pyroclastic flow, pyroclastics, quaternary, radiocarbon ages, radiocarbon dating, rockfall, rocks, sample location, surficial, table top mountain, tephra, tertiary, trace elements, trace geochemical, tuff, unalaska, unalaska formation, unconsolidated deposits, volcanic, volcanic ash, volcanic eruption, volcanic landslide, volcanic rocks, volcaniclastic deposits, volcaniclastics, volcanoes, volcanology
Organization: State of Alaska
Shoreline change at Alaska coastal communities, Tuntutuliak, 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, emergency preparedness, engineering, environmental, erosion, flood, floodplain, geology, hazards, inundation, marine geology, outreach, sea level changes, shelf, shoreface, storm surge, surface, tides, topography, tuntutuliak, water
Organization: State of Alaska
High-resolution lidar data for infrastructure corridors, Philip Smith Mountains 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, hillshade image, lidar, philip smith mountains quadrangle, proposed natural gas pipeline, remote sensing, shaded relief, state of, topographic map, trans-alaska pipeline
Organization: State of Alaska
Tsunami inundation maps of Sitka, Alaska

The purpose of this study is to evaluate potential tsunami hazards for the community of Sitka. We numerically modeled the extent of inundation from tsunami waves generated by near- and far-field tectonic sources. We performed numerical modeling of historic events at Sitka, such as the tsunami triggered by the 1964 Great Alaska Earthquake, and the tsunami waves generated by the recent 2011 Tohoku and 2012 Haida Gwaii earthquakes. Hypothetical tsunami scenarios include variations of the extended 1964 rupture, megathrust earthquakes in the Alaska Peninsula region and in the Cascadia subduction zone, and a thrust earthquake in the region of the Queen Charlotte-Fairweather fault zone. Results of numerical modeling combined with historical observations in the region are intended to provide guidance to local emergency management in tsunami hazard assessment, evacuation planning, and public education for the reduction of future tsunami risk.

Tags: active fault, alaska, alaska earthquake 1964, baranof island, bathymetry, coastal, coastal and river, earthquake, emergency preparedness, engineering, engineering geology, faulting, faults, flood, geologic hazards, geology, hazards, holocene, inundation, japonski island, modeling, seismic hazards, sitka, sitka quadrangle, sitka sound, southeast alaska, state of, tides, tsunami
Organization: State of Alaska
Lidar-derived elevation models for the Grewingk Glacier 1967 landslide scar, Alaska, collected June 3, 2019

The Alaska Division of Geological & Geophysical Surveys (DGGS) used lidar to produce digital terrain models (DTM), a digital surface model (DSM), and an intensity model for evaluations of the Grewingk Glacier 1967 landslide scar located above the proglacial lake on the north-facing flank of the glacial valley in Kachemak Bay State Park, Alaska. DGGS capitalized on a data collect (Salisbury and others, 2021) conducted in Homer the same day for a landslide hazard resiliency project. Lidar and Global Navigation Satellite System (GNSS) data were collected on June 3, 2019, and subsequently processed using TerraSolid and ArcGIS. The Alaska Division of Mining, Land, & Water (DMLW) Survey Section conducted a targeted Ground Control Survey for the Homer project on June 19-20, 2019, and we use these ground control data for the Grewingk Glacier dataset across Kachemak Bay. These data are being released as a Raw Data File with an open end-user license. All files can be downloaded free of charge from the Alaska Division of Geological & Geophysical Surveys website (http://doi.org/10.14509/30599).

Tags: dggs, digital elevation model, digital surface model (dsm), digital terrain model, engineering, engineering geology, glaciers, grewingk glacier, halibut cove, kachemak bay, landslide, lidar, lidar intensity image, point cloud data, point count, raster image
Organization: State of Alaska
Reconnaissance geologic map of the Nome C-2 Quadrangle, Seward Peninsula, Alaska

Open-File Report 72-321, Reconnaissance geologic map of the Nome C-2 Quadrangle, Seward Peninsula, Alaska, provides (1:63,360-scale) geologic mapping of parts of the U.S. Geological Survey (USGS) Nome C-2 Quadrangle. This map was published by the USGS and has been scanned, digitized, and attributed. The dataset contains geologic, structural, stratigraphic, and geochronologic data organized according to the GeMS and AK GeMS mapping schemas. The geodatabase and ESRI fonts and style files are available from the DGGS website: https://dggs.alaska.gov/pubs/id/10960.

Tags: actinolite, alluvial, alluvium, alpha creek, american creek, arctic creek, ashland creek, aurora creek, aurora mountain, bangor creek, bedrock, bedrock geology, bluff creek, boulder creek, bowhead creek, calcite, chlorite, cleveland creek, colluvium, colorado creek, comeni creek, cone mountain, conglomerate, cretaceous, cripple creek, cripple river, crystal creek, daisy swift creek, dolomite, edward creek, elizabeth creek, elizabeth mountain, epidote, fan, fossils, fox creek, garnet, gems, gems ncgmp09, geologic map, geology, glaciation, gneiss, granite creek, graphite, gravel, graywacke, holocene, honey creek, huckleberry run, hungry creek, independence creek, lamprophyre, last chance creek, limestone, marble, mica, monument creek, mud creek, negsue creek, nome, oregon creek, outwash, paleozoic, penny river, plagioclase, pleistocene, practolus creek, precambrian, quartz, quartz creek, quaternary, rabbit creek, rocks, rodney creek, rodney mountain, russel creek, sand, sealer creek, sidney creek, silt, sinuk, sinuk river, slate creek, sledge creek, snake river, snowshoe creek, someone creek, sonora creek, stella creek, sunset creek, sunset mine, surficial, tertiary, tundra, twin mountain creek, volcanic, washington creek, wheel creek, willow creek
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. This digital surface model represents coefficient of variation of the above ground height of vegetation returns.

Tags: alaska, alaska highway corridor, alaska pipeline, coefficient variation, gasline, geomorphology, lidar, proposed natural gas pipeline, raster image, remote sensing, state of, trans-alaska pipeline, tyonek quadrangle
Organization: State of Alaska