AndreaBozzo/ceres-open-data-index huggingface dataset:
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. The highest-hit digital surface models (DSM) represent the earth's surface with all vegetation and human-made structures included.

Tags: alaska, alaska highway corridor, alaska pipeline, gasline, geomorphology, healy quadrangle, highest hit digital surface model (dsm), lidar, proposed natural gas pipeline, raster image, remote sensing, state of, trans-alaska pipeline
Organization: State of Alaska
Iditarod electromagnetic and magnetic airborne geophysical survey data compilation

The Iditarod electromagnetic and magnetic airborne geophysical survey is located in the Iditarod, Innoko and McGrath mining districts, about 500 km southwest from Fairbanks, Alaska. The survey is adjacent to the Aniak, Beaver Creek, and Southern Dishna River geophysical surveys. Frequency domain electromagnetic and magnetic data were collected with the DIGHEMV system from August to September 2010. A total of 6,223.8 line kilometers were collected covering 2,244.5 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 administered by the Alaska Geological & Geophysical Surveys (DGGS). The data, as well as additional metadata, are available from the DGGS website: http://doi.org/10.14509/30222.

Tags: aeromagnetic, aeromagnetic data, aeromagnetic map, aeromagnetic survey, airborne geophysical survey, analytic signal, anvil creek, apparent resistivity data, apparent resistivity map, apparent resistivity survey, beaver mountains, black pass, california creek, camelback mountain, conductivity survey, crater mountain, deadwood creek, dishna river, dodge creek, electromagnetic data, electromagnetic survey, ester creek, exploration, first vertical derivative, fourth of july creek, french joe mountain, frequency domain electromagnetic data, ganes creek, geologic, geology, geophysical map, geophysical survey, geophysics, geophysics search tag, george river, granite creek, gridded data, iditarod mining district, innoko mining district, innoko river, lincoln creek, line data, magnetic data, magnetic survey, magnetics, malamute gulch, maybe creek, mcgrath mining district, moore city, moore creek, ophir creek, potosi creek, remote sensing, resistivity, resistivity survey, spruce creek, tamarack creek, tolstoi creek, tolstoi lake, victor creek, willow creek, yankee creek
Organization: State of Alaska
Major-oxide and trace-element geochemical data from rocks collected in 2019 for the Eastern Tanacross project, Tanacross and part of Nabesna quadrangles, Alaska

During the 2019 field season, geologists from the Alaska Division of Geological & Geophysical Surveys (DGGS) conducted 1:100,000-scale geologic mapping and sampling of a 1,900-square-mile area of the eastern Tanacross Quadrangle. The area lies approximately 15 miles east of Tok and 12 miles north of Northway, Alaska. The area is of present and historical interest for its potential mineral resources, including porphyry copper-molybdenum-gold, intrusion-related gold, volcanogenic massive sulfides, and rare-earth-element enriched mineralization. This dataset provides major-oxide and trace-element geochemical data from rock samples collected throughout the map area. The results include six samples with gold in excess of 0.030 parts per million (ppm) in several different locations, including a sample with 0.068 ppm Au (19JEA004) collected near Honks, a sample with 0.064 ppm Au (19RN359) from a silicified and tourmaline- and pyrite-altered dike near Mount Fairplay, and a sample with 0.063 ppm Au and 35.8 ppm Ag (19TJN005) collected about half a mile northeast of Move. Additionally, a sample from a tourmaline-altered dike from a road cut near Mount Fairplay has 66.9 ppm Ag (19RN372), and a sample of a tourmaline-altered wall rock surrounding the dike contains 26.7 ppm Ag and 1,220 ppm Pb (19RN371). Samples collected at Mount Fairplay are particularly enriched in rare earth elements (REE), reaching almost 1,000 ppm total REE (samples: 19KS368, 19AW318). The analytical data tables associated with this report are available through the Alaska Geochemistry database (https://maps.dggs.alaska.gov/geochem). For a direct link to this data release, see http://doi.org/10.14509/30267.

Tags: analyses, analyses and sampling, analytical lab results, analytical results, base metals, beaver creek, bedrock, bedrock geology, big creek, chemistry, chicken creek, critical minerals, damundtali lake, deep creek, economic geology, economic study, exploration, gardiner creek, geochemical data, geochemical surveys, geochemistry, geologic, geology, gold prospect, goodrich prospect, heavy metals, honks prospect, igneous rocks, lab methods, ladue prospect, ladue river, logging cabin creek, major oxides, mcarthur creek, mccord creek, metals, metamorphic rocks, metasedimentary rocks, metavolcanic rocks, methods, mineral assessment, mineral deposit, mineral development, mineral localities, mineral prospect, mineral resources, mineralogy, minerals, mining, minor oxides, moosehorn ridge, mount fairplay, mount fairplay prospect, non-metals, ore deposit, oreo prospect, ores, plutonic rocks, plutons, pushbush prospect, rare earth elements, resource assessment, resource information, resources, sample location, scottie creek, strategic minerals, swamp creek, trace elements, trace geochemical, trace metals, volcanic rocks, yellow water creek
Organization: State of Alaska
Shoreline change at Alaska coastal communities, Toksook Bay, 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, toksook bay, topography, water
Organization: State of Alaska
40Ar/39Ar data from the eastern Moran area, Tanana B-6 and C-6 quadrangles, and the Ruby mining district, Ruby B-5 and B-6 quadrangles, Alaska

This report presents 40Ar/39Ar step-heating geochronology results for igneous and metamorphic rocks from the eastern Moran area. Field samples were collected by the DGGS Mineral Resources section during detailed geologic mapping campaigns in 2011. The data provided in this report add significant detail to the thermal history of the Moran area. These new data indicate that the minimum age of prograde metamorphism of Ruby terrane rocks ranges from 148.5 +/- 1.7 to 140.4 +/- 1.7 Ma, and retrograde greenschist metamorphism is 122.6 +/- 2.3 Ma. The retrograde metamorphism is roughly coeval with the age of fabric development parallel to the Kaltag fault (128.3 +/- 1.7) and Tozitna thrust/detachment fault (123.2 +/- 1.5 Ma). The new data also indicate that the Melozitna pluton is composite, with a biotite cooling age of 116.5 +/- 1.3 from coarse-grained granite, while cooling ages for dikes cutting the granite range from 110.1 +/- 1.3 to 102.8 +/- 1.2 Ma. The age of mineralized veins in the area are variable and include 119.0 +/- 1.3 Ma galena veins in the Tozimoran drainage and an interpreted age of 66.5 +/- 2.6 for an auriferous vein from the Monday Creek area, which is synchronous with ages of biotite samples from granite and schist from the Ruby Mining district. The complete report and digital data are available through the DGGS website: http://doi.org/10.14509/30117.

Tags: 40ar/39ar, age dates, alaska, analyses, analyses and sampling, analytical lab results, analytical results, ar-ar, ash creek, batholith, bedrock, bedrock geology, birch creek, cretaceous, dominion creek, geochronology, geologic, geology, igneous, igneous rocks, isotopes, jurassic, kokrines hills, lab methods, melozitna mining district, methods, mineralogy, minor oxides, moran creek, moran dome, rocks, ruby mining district, ruby terrane, sample location, state of, statemap project, tozitna creek, tozitna terrane, triassic, west tanana prospect, yukon river
Organization: State of Alaska
Major-Oxide, Minor-Oxide, Trace-Element, and Geochemical Data from Rocks Collected in the Alaska Highway Corridor, Big Delta and Mount Hayes Quadrangles, Alaska in 2006 and 2007

Alaska Division of Geological & Geophysical Surveys (DGGS) personnel collected rock samples while mapping the bedrock geology along a 12-mile-wide swath following the Alaska Highway between Delta Junction and the eastern edge of the Mount Hayes quadrangle near Dot Lake, Alaska. This mapping is one component of the multi-year DGGS project studying the geology, geohazards and resources along the proposed gas pipeline corridor from Delta Junction to the Canadian border. In 2006, we collected 10 samples for whole rock (major- and minor-oxides, and petrogenetically important trace-elements) analysis. In 2007, we collected 111 samples for whole rock analysis and 36 rock samples for geochemical trace-element analysis. Analytical data from these rock samples are tabulated in this publication.

Tags: alaska highway corridor, birch creek schist, geochemical data, geochemistry, gold, lake george, major oxides, mount hayes quadrangle, statemap project, tanana river, trace elements, trace geochemical, trace metals, yukon-tanana terrane, yukon-tanana upland
Organization: State of Alaska
Geologic map of the Tanana A-1 and A-2 quadrangles, central Alaska

This report provides detailed (1:63,360-scale) mapping of the Tanana A-1 and A-2 quadrangles (500 square miles; equivalent to eight 7.5-minute quadrangles). The area is part of the Manley Hot Springs-Tofty mining districts and adjacent to the Rampart mining district to the south of the Tanana B-1 Quadrangle. This report includes detailed bedrock, surficial, structural, and stratigraphic data. Based on the resulting geologic maps, field investigations, and laboratory materials analyses, the report also includes derivative maps of geologic construction materials and geologic hazards. The Tanana A-1 and A-2 Quadrangles and surrounding area comprise several isolated mountainous ridges in the western Yukon-Tanana Upland of interior Alaska.

Tags: 40ar/39ar, aerial photography, aeromagnetic map, aeromagnetic survey, age dates, amy creek assemblage, bibliography, biostratigraphy, cambrian, carbonates, carboniferous, cenozoic, cerium, cipw norms, clastics, conductivity survey, core logs, cretaceous, cultural resources, depositional environment, devonian, diagenesis, disseminated, economic geology, economic study, electromagnetic survey, epithermal, erosion, famennian, faulting, folding, fossils, geologic map, geomorphology, geophysical map, glacial, glacial processes, gold, greenschist, greisen, historic resources, holocene, hot springs, hot springs pluton, jurassic, k-ar, lab methods, livengood dome chert, lode, magnetic susceptibility, magnetometer survey, major oxides, manley basin, marine, measured stratigraphic section, mesozoic, metamorphic grade, metamorphism, mineralogy, mining, mississippian, modal analysis, niobium, ordovician, ores, orogeny, paleobotany, paleocurrent, paleoenvironment, paleontology, paleozoic, palynology, permian, petrogenesis, petrography, petrology, placer, pleistocene, plutonic, plutonic hosted, precious metals, production data, proterozoic, provenance, quaternary, rare earth elements, reconstructions, regional, regional metamorphism, remote sensing, resistivity survey, resource assessment, sandstone, sedimentary, sedimentation, shale, silurian, silver, structure, structure map, surficial, tectonic map, tectonics, terranes, tertiary, topographic map, triassic, turbidites, type section, uplift, volcanic, volcanic hosted, wickersham unit, wilber creek ash, wolverine creek sequence, yukon river
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. 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, talkeetna quadrangle, trans-alaska pipeline
Organization: State of Alaska
Black Mountain electromagnetic and magnetic airborne geophysical survey data compilation

The Black Mountain electromagnetic and magnetic airborne geophysical survey is located in interior Alaska in the Goodpaster mining district, about 125 kilometers southeast of Fairbanks, Alaska. The survey is adjacent to the Goodpaster and South East Extension of Salcha River Pogo geophysical surveys. Frequency domain electromagnetic and magnetic data were collected with the DIGHEMV system from September to November 2005. A total of 1735.2 line kilometers were collected covering 621.5 square kilometers. 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/10.14509/29756.

Tags: aeromagnetic, aeromagnetic data, aeromagnetic map, aeromagnetic survey, airborne geophysical survey, analytic signal, antimony creek, apparent resistivity data, apparent resistivity map, apparent resistivity survey, black mountain, boulder creek, central creek, conductivity survey, divide creek, eisenmenger fork, electromagnetic data, electromagnetic survey, exploration, first vertical derivative, frequency domain electromagnetic data, geologic, geology, geophysical map, geophysical survey, geophysics, geophysics search tag, goodpaster mining district, granite creek, gridded data, grizzly bear mine, johnson creek, king creek, last chance creek, line data, magnetic data, magnetic survey, magnetics, remote sensing, resistivity, resistivity survey, serpentine creek, south fork goodpaster river, summit creek, tibbs creek, wolverine creek
Organization: State of Alaska
High-resolution lidar data for infrastructure corridors, Chandalar 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 vegetation digital surface models (veg_DSM) represent the above ground elevation of the highest laser return with all vegetation greater than 20 cm above the ground included.

Tags: alaska, alaska highway corridor, alaska pipeline, chandalar quadrangle, digital surface model (dsm), gasline, geomorphology, lidar, proposed natural gas pipeline, raster image, remote sensing, state of, trans-alaska pipeline, vegetation digital surface model (dsm)
Organization: State of Alaska
Southern Dishna River, Fox Hills, and Beaver Creek survey areas: Airborne Magnetic and electromagnetic data in line (point), grid, vector, and map formats, Iditarod, Ophir, and Holy Cross quadrangles, western Alaska

This digital publication, GPR 2013-1, contains data produced from airborne geophysical surveys conducted in 2012 for three separate blocks, the Southern Dishna River, Fox Hills, and Beaver Creek survey areas, in the Iditarod, Ophir, and Holy Cross quadrangles in western Alaska. The areas are in the Iditarod, Innoko, and Aniak mining districts. Aeromagnetic and electromagnetic (EM) data were acquired by helicopter for about 1029 sq miles. Fugro Airborne Survey's frequency-domain DIGHEM V system was used for the EM data. GPR 2013-1 includes (1) raw and processed linedata; (2) gridded, Google Earth, and Geotiff formats of the calculated linedata; (3) maps of the data; and (4) vector files of data contours and flight lines.

Tags: aeromagnetic data, aeromagnetic map, aeromagnetic survey, airborne geophysical survey, alaska, aniak mining district, apparent resistivity data, apparent resistivity map, dighem v em system, digital elevation model, electromagnetic data, electromagnetic survey, first vertical derivative, geophysics, hem survey, holy cross quadrangle, iditarod mining district, iditarod quadrangle, innoko mining district, magnetic survey, magnetics, ophir quadrangle, state of
Organization: State of Alaska
High-resolution lidar data for infrastructure corridors, Chandalar 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, chandalar 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
High-resolution lidar data for infrastructure corridors, Gulkana 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, gasline, geomorphology, gulkana quadrangle, lidar, lidar intensity image, proposed natural gas pipeline, remote sensing, shaded relief, state of, topographic map, trans-alaska pipeline
Organization: State of Alaska
Geologic Map of the Eagle A-2 Quadrangle, Fortymile mining district, Alaska

The Alaska Division of Geological & Geophysical Surveys (DGGS) has conducted 1:63,360-scale geologic mapping of the Eagle A-2 Quadrangle (270 square miles; equivalent to four 7.5-minute quadrangles). The area is part of the 100-year old Fortymile mining district and is located in eastern Alaska near the Alaska-Yukon border. This geologic map was produced by merging a bedrock geologic map and a surficial geologic map of the Eagle A-2 Quadrangle and based upon results from field investigations by DGGS in 1999 and 2000, which were part of a three-year mapping program to provide geologic ground truth for airborne geophysical surveys flown by DGGS in the Fortymile mining district during 1998.

Tags: alaska, augen gneiss, cenozoic, chicken, chicken metamorphic complex, chicken pluton, cretaceous, devonian, eagle quadrangle, fortymile mining district, fortymile river assemblage, geology, holocene, jurassic, mesozoic, mining, mississippian, napoleon creek pluton, paleozoic, pennsylvanian, permian, pleistocene, plutons, precambrian, quaternary, state of, statemap project, taylor mountain batholith, terrace, tertiary, triassic, walker fork pluton
Organization: State of Alaska
High-resolution lidar data for infrastructure corridors, Mount Hayes 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, gasline, geomorphology, lidar, lidar intensity image, mount hayes quadrangle, proposed natural gas pipeline, remote sensing, shaded relief, state of, topographic map, trans-alaska pipeline
Organization: State of Alaska