AndreaBozzo/ceres-open-data-index huggingface dataset:
Major-oxide and trace-element geochemical data from rocks collected in 2015 in lower Cook Inlet, Iniskin - Tuxedni region, Alaska

The Iniskin-Tuxedni Bay area contains excellent exposures of nearly all of the lower Cook Inlet Mesozoic succession, including most of the stratigraphic sections that define the interval and the petroleum source rocks that comprise the basin. An underdeveloped understanding of the Mesozoic petroleum system has led the Alaska Department of Natural Resources' Division of Geological & Geophysical Surveys and Division of Oil and Gas, and the U.S. Geological Survey to collaborate on a multi-year project that includes two major mapping campaigns. Geologic mapping between Chinitna Bay and the Johnson River during the 2015 field season encompassed volcanic arc rocks northwest of the Bruin Bay fault system, and Mesozoic forearc basin stratigraphy extending to the Cook Inlet coast. To understand and represent the complexity of the volcanic arc systems in the region, we analyzed ten samples of volcanic rocks, two samples of gabbro sill, and one mafic dike sample for major and minor oxides and trace elements. Although mineralization was not noted in the samples collected for major oxide analysis, findings of interest include: one sample with weak Cr and Ni enrichment, three samples with lightly elevated As, and slight S anomalies (0.37 wt percent and 0.25 wt percent) in samples described as Talkeetna Formation. The Talkeetna Formation sample with 0.37 wt percent S also had elevated Cu (321 ppm) and As (58 ppm). The analytical data tables associated with this report are available in digital format as comma-separated values (CSV) file.

Tags: analyses, analyses and sampling, analytical lab results, analytical results, bruin bay fault, chemistry, chitina, cook inlet, geochemical data, geochemistry, geology, igneous, igneous rocks, iliamna, kenai, lab methods, magmatic arc, major oxides, minor oxides, sample location, statemap project, talkeetna formation, trace elements, volcanic, volcanic arc, volcanic rocks
Organization: State of Alaska
Fossil locality map of the Healy A-6 Quadrangle, south-central Alaska

This report presents in tabular form a complete listing of faunal and minor floral elements, along with their identification as known to date, for all fossils collected by field party members of the Alaska Division of Geological & Geophysical Surveys (DGGS) during their 1997 and 1998 geological mapping effort in the Healy A-6 Quadrangle. In addition, all known U.S. Geological Survey fossil localities that could be located from previously published maps are also shown on the fossil locality map and listed in the fossil register.

Tags: ammonites, bivalves, brachiopods, bryozoans, buchia, chulitna, chulitna terrane, conodonts, corals, cretaceous, devonian, early jurassic, fossils, gastropods, halobia, healy quadrangle, kahiltna terrane, late silurian, late triassic, mollusks, paleontology, paleozoic, pelecypods, pennsylvanian, permian, radiolarians, trace fossils
Organization: State of Alaska
Lidar-derived elevation data for Turnagain Pass, southcentral Alaska, September 2, 2018

The State of Alaska Division of Geological & Geophysical Surveys (DGGS) used lidar to produce a digital terrain model (DTM) and digital surface model (DSM) of Turnagain Pass, southcentral Alaska, during snow-free ground conditions. This dataset includes point cloud data, a 32-bit digital terrain model and digital surface model, and an intensity image covering Turnagain Pass located southeast of Anchorage within the Chugach National Forest on the Kenai Peninsula in southcentral Alaska. The lidar and Global Navigation Satellite System (GNSS) data were collected on September 2, 2018, and processed using Terrasolid. This data collection is 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/10.14509/30567).

Tags: bench creek, bertha creek, center creek, digital elevation model, digital surface model (dsm), east fork sixmile creek, engineering, engineering geology, geologic, geology, geomorphology, geotechnical, granite creek, ingram creek, kickstep mountain, lidar, lynx creek, lyon creek, petes creek, point cloud data, remote sensing, spokane creek, surficial, surficial geology, taylor creek, tincan creek, tincan peak, topography, turnagain arm, turnagain pass, web service, wolverine creek
Organization: State of Alaska
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 in this data release are background information on the larger project, methods of sample collection, processing, analysis, and data reduction spreadsheets showing 1) raw point major-oxide data, 2) normalized and averaged major-oxide data, and 3) basic sample metadata. Users can access the complete report and digital data from the DGGS website: http://doi.org/10.14509/29777 and from the Alaska Volcano Observatory's online database, the Geologic Database of Information on Volcanoes in Alaska (GeoDIVA)

Tags: alaska peninsula, analyses, analyses and sampling, analytical lab results, analytical results, aniakchak, archaeology, caldera, coastal, geochemistry, geologic, geology, glass, hazards, methods, minerals, tephra, tephrochronology, tephrostratigraphy, volcanic, volcanoes, volcanology
Organization: State of Alaska
Photogrammetric digital surface models and orthoimagery for the continuous coastline, Wales to Platinum, Alaska, segment I: Newtok to Nightmute

Aerial photographs of the coastline from Newtok to Nightmute were collected on May 7, 2016. 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 No Data value is set to -32767. The file employs LZW compression.

Tags: coastal, coastal and river, engineering, engineering geology, environmental, geologic hazards, geology, geomorphology, hazards, marine geology, methods, newtok, nightmute, raster image, surficial
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 (mean_DSM) represents mean above-ground height of vegetation returns.

Tags: alaska, alaska highway corridor, alaska pipeline, digital surface model (dsm), gasline, geomorphology, lidar, mean vegetation elevation (dsm), proposed natural gas pipeline, raster image, remote sensing, state of, trans-alaska pipeline, tyonek quadrangle, vegetation metric
Organization: State of Alaska
High-resolution lidar data for infrastructure corridors, Talkeetna 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. This digital surface model (mean_DSM) represents mean above-ground height of vegetation returns.

Tags: alaska, alaska highway corridor, alaska pipeline, digital surface model (dsm), gasline, geomorphology, lidar, mean vegetation elevation (dsm), proposed natural gas pipeline, raster image, remote sensing, state of, talkeetna mountains quadrangle, trans-alaska pipeline, vegetation metric
Organization: State of Alaska
Shoreline change at Alaska coastal communities, Shaktoolik, 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, shaktoolik, shelf, shoreface, storm surge, surface, tides, topography, water
Organization: State of Alaska
High-resolution lidar data for infrastructure corridors, Talkeetna 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. 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 mountains quadrangle, trans-alaska pipeline
Organization: State of Alaska
Analyses of historic U.S. Bureau of Mines rock and heavy mineral concentrate samples for geochemical trace-element and rare-earth element data--Ray Mountains and Kanuti-Hodzana uplands area, Alaska

Re-analyses of sample pulps and bulk rejects from historic USBM rock and heavy-mineral-concentrate samples were conducted by the Alaska Division of Geological & Geophysical Surveys (DGGS) as part of the State of Alaska's Strategic and Critical Minerals Assessment project, which is designed to evaluate Alaska's potential for these resources. The objective of this resource assessment is to expand the state's geochemical database by obtaining and publishing modern, quantitative geochemical analyses for historic USBM samples, where available. Highlights of this re-analysis project include heavy mineral concentrates with up 7,220 ppm Sn, 5,870 ppm Cr, and 17,000 ppm Mn.

Tags: aluminum, angayucham terrane, angayucham thrust, antimony, arsenic, barium, basalt, base metals, beaver quadrangle, bedrock, beryllium, bettles quadrangle, bismuth, bonanza creek, bonanza pluton, cadmium, calcium, caribou mountain, cerium, cesium, chlorite, chromium, coal creek, coal creek pluton, cobalt, copper, cretaceous, critical minerals, dall river, dalton highway, dysprosium, economic geology, erbium, europium, exploration, felsic, fish creek, fluorine, fort hamlin hills, fort hamlin hills pluton, gadolinium, galena, gallium, geochemical data, geochemical surveys, geochemistry, germanium, gobblers knob, gold, granite, greisen, hafnium, heavy metals, hodzana pluton, holmium, hot springs pluton, igneous rocks, iron, ishtalitna creek, kanuti hot springs, kanuti kilolitna river, kanuti pluton, kanuti river, kilo hot springs, koyukuk mining district, lanthanide elements, lanthanum, livengood quadrangle, lode, lower ray hot springs, lutetium, magnesium, manganese, mcquesten creek, mesozoic, metabasite, metals, metamorphic rocks, metasedimentary rocks, metavolcanic rocks, mineral assessment, mineral deposit, mineral resources, miocene, molybdenum, monazite, mount henry eakin, mount tozi, neodymium, nickel, niobium, no name creek, non-metals, palladium, pan concentrates, phanerozoic, phosphorus, placer, placer gold, platinum, platinum group elements, potassium, praseodymium, precious metals, promethium, prospect creek, quaternary, rare earth elements, ray mountains, ray mountains pluton, ray river, ray river basalt, ray river hot springs, ray river pluton, ree, resource assessment, resources, rubidium, ruby terrane, samarium, scheelite, schist, selenium, silica, silver, sithylemenkat lake, sithylemenkat pluton, sodium, sphalerite, strategic minerals, stream sediments, strontium, sulfides, sulfur, tanana quadrangle, tantalum, tertiary, thallium, thorium, tin, titanium, tokusatatquaten lake, torment creek, tourmaline, tozitna terrane, trace elements, trace geochemical, trace metals, trans-alaska pipeline, tungsten, upper ray hot springs, uranium, vanadium, ytterbium, zeunerite, zinc, zirconium
Organization: State of Alaska
East Styx electromagnetic, magnetic, and radiometric airborne geophysical survey data compilation

The East Styx electromagnetic, magnetic, and radiometric airborne geophysical survey is located about 150 kilometers northwest of Anchorage, Alaska in the upper Skwentna River drainage and surrounds the Rainy Pass Airport. The survey is in the Yentna, Redoubt, and McGrath mining districts of south-central Alaska. Frequency domain electromagnetic, magnetic, and radiometric data were collected with the DIGHEM system from June 24th to September 24th, 2013. A total of 7865.6 line kilometers were collected covering 2791.2 square kilometers. Line spacing was 400 meters (m). Data were collected 30 m above the ground surface from a helicopter towed sensor platform ('bird') on a 30 m long line. The data, as well as additional metadata, are available from the DGGS website: http://doi.org/10.14509/30412.

Tags: aeromagnetic, aeromagnetic data, aeromagnetic map, aeromagnetic survey, airborne geophysical survey, analytic signal, apparent resistivity data, apparent resistivity map, apparent resistivity survey, canyon creek, chickak river, coal creek, columbia peak, conductivity survey, dickason mountain, distin peak, electromagnetic data, electromagnetic survey, emerald creek, eva peak, exploration, finnbear lake, first vertical derivative, frequency domain electromagnetic data, friday creek, geologic, geology, geophysical map, geophysical survey, geophysics, geophysics search tag, glacier creek, gorley lake, gridded data, halfway lake, happy river, hayes river, hayes river pass, indian creek, johnson creek, kichatna river, kohlsaat peak, line data, long lake hills, lookout hill, magnetic data, magnetic survey, magnetics, mcgrath mining district, moose creek, moose creek lake, old iditarod trail, old man creek, porcupine butte, puntilla creek, puntilla lake, puntilla mountain, red lake, red salmon lake, redoubt, remote sensing, resistivity, resistivity survey, round mountain, saturday creek, shirley lake, skwentna river, spring creek, totoilon mountains, trimble river, yentna mining district
Organization: State of Alaska
Northeast Fairbanks electromagnetic and magnetic airborne geophysical survey data compilation

The Northeast Fairbanks electromagnetic and magnetic airborne geophysical survey is located in interior Alaska in the Fairbanks and Circle mining districts, about 60 kilometers northeast of Fairbanks, Alaska. Frequency domain electromagnetic and magnetic data were collected with the DIGHEMV system from September to November 2005. A total of 3259.6 line kilometers were collected covering 1166.1 square kilometers. Line spacing was 400 meters (m). Data were collected 30 m above the ground surface from a helicopter towed sensor platform ('bird') on a 30 m long line. The survey was conducted by Fugro Airborne Surveys Corp. and Stevens Exploration Management Corp. and administered by the Alaska Geological & Geophysical Surveys (DGGS). The data, as well as additional metadata, are available from the DGGS website: http://doi.org/10.14509/30062.

Tags: aeromagnetic, aeromagnetic data, aeromagnetic map, aeromagnetic survey, airborne geophysical survey, analytic signal, apparent resistivity data, apparent resistivity map, apparent resistivity survey, bear creek, birch creek, bonanza creek, caribou creek, cassiar creek, charity creek, chatanika river, circle mining district, conductivity survey, cripple creek, crooked creek, deep creek, dexter creek, electromagnetic data, electromagnetic survey, exploration, fairbanks mining district, faith creek, first vertical derivative, fish creek, flat creek, frequency domain electromagnetic data, frozenfoot creek, geologic, geology, geophysical map, geophysical survey, geophysics, geophysics search tag, gridded data, harrington fork, homestake creek, hope creek, horse creek, idaho creek, line data, little caribou creek, little chena river, lost creek, magnetic data, magnetic survey, magnetics, mcmanus creek, medicine creek, modoc creek, montana creek, mount ryan, no name creek, perhaps creek, polar creek, pool creek, ptarmigan creek, reed creek, remote sensing, resistivity, resistivity survey, ruby creek, silver creek, smith creek, sorrels creek, sourdough creek, table mountain, tough luck creek, twelvemile creek, twelvemile summit, willow creek, zephyr creek
Organization: State of Alaska
Outcrop structural data collected in 2006 in the Solomon Quadrangle, Seward Peninsula, Alaska

The outcrop structural data in this publication were collected in 2006 during geologic field mapping within the Council airborne geophysical survey tract. The data were acquired to produce a geologic map, to determine the area's structural history, and to evaluate its' mineral potential with respect to these structures.

Tags: alaska, bluff, casadepaga river, council, council mining district, seward peninsula, solomon quadrangle, state of, statemap project, structural geology, structure
Organization: State of Alaska
High-resolution lidar data for infrastructure corridors, Tanacross 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. Lake polygons represent areas of water bodies (excluding streams and rivers) > 150 square meteres, present at the time of lidar data collection.

Tags: alaska, alaska highway corridor, alaska pipeline, gasline, geomorphology, lidar, lidar lake polygons, proposed natural gas pipeline, remote sensing, shaded relief, state of, tanacross quadrangle, topographic map, trans-alaska pipeline
Organization: State of Alaska
High-resolution lidar data for infrastructure corridors, Wiseman 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), gasline, geomorphology, lidar, proposed natural gas pipeline, raster image, remote sensing, state of, trans-alaska pipeline, wiseman quadrangle
Organization: State of Alaska