AndreaBozzo/ceres-open-data-index huggingface dataset:
Lidar-derived elevation data for Mount Juneau, Southeast Alaska, collected September 6, 2019

The Alaska Division of Geological & Geophysical Surveys (DGGS) used aerial lidar to produce a classified point cloud, digital surface model (DSM), digital terrain model (DTM), and intensity model of Mount Juneau, Southeast Alaska, during near snow-free ground conditions on September 6, 2019. The survey provides snow-free surface elevations for deriving snow depth distribution models with repeat surveys during snow-covered conditions. Ground control data were collected on September 5, 2019, and aerial lidar were collected on September 6, 2019, and subsequently processed in a suite of geospatial processing software. These products are released as a Raw Data File with an open end-user license. All files can be downloaded from the Alaska Division of Geological & Geophysical Surveys website (http://doi.org/10.14509/30731).

Tags: aerial, aerial geology, avalanche, court house hill, digital elevation model, digital surface model (dsm), digital terrain model, ebner falls, elevation, emergency preparedness, engineering, engineering geology, environmental, gastineau channel, geologic, geologic hazards, geological process, geology, geomorphology, geotechnical, gold creek, granite creek, harris harbor, hazards, hillshade image, juneau, lidar, lidar intensity image, lidar las file format, mount juneau, mount maria, point cloud data, raster image, remote sensing, slope, slope instability, southeast alaska, starr hill, surface, surficial, surficial geology, topography, water, web service
Organization: State of Alaska
Geologic map of the Tanana B-1 quadrangle, central Alaska

This report provides detailed (1:63,360-scale) mapping of the Tanana B-1 Quadrangle (250 square miles; equivalent to four 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 north of the Tanana A-1 and A-2 Quadrangles. This report includes detailed geologic, structural, stratigraphic, and geochronologic data. Based on the resulting geologic maps, field investigations, and laboratory materials analyses, the project has also generated derivative maps of geologic construction materials and geologic hazards.

Tags: aerial photography, aeromagnetic survey, age dates, amphibolite, amy creek assemblage, amy dolomite, ar-ar, bibliography, c14, cambrian, carbonates, carboniferous, cenozoic, cipw norms, clastics, coal, conductivity survey, conodonts, cretaceous, devonian, early proterozoic, electromagnetic survey, eocene, faulting, faults, folding, fossils, geologic, geomorphology, geothermometry, glacial, glacial processes, greenschist, holocene, igneous rocks, index minerals, isograds, isotopes, jurassic, k-ar, kaltag fault, livengood dome chert, lode, major oxides, mesozoic, metamorphic grade, metamorphic minerals, metamorphism, modal analysis, ordovician, paleocene, paleozoic, permian, petrography, pleistocene, plutonic, plutonic hosted, precious metals, proterozoic, quaternary, rampart group, reconstructions, regional, regional metamorphism, resource assessment, rifting, ruby terrane, sample location, sandstone, schist, sedimentary, shale, silurian, structure, surficial, tectonics, terranes, tertiary, triassic, type section, uplift, volcanic, wickersham unit, wilber creek ash, wolverine complex, yukon river, yukon-tanana terrane
Organization: State of Alaska
High-resolution lidar data for infrastructure corridors, Livengood 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, livengood quadrangle, proposed natural gas pipeline, raster image, remote sensing, state of, trans-alaska pipeline
Organization: State of Alaska
High-resolution lidar data for infrastructure corridors, Anchorage 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, anchorage quadrangle, 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
Organization: State of Alaska
Alaska shoreline change tool

Coastlines are dynamic features that change shape and position on a range of timescales. As a result of this variability, many coastal communities in Alaska must carefully consider patterns of coastal erosion and/or accretion to appropriately plan for the future. Until now, a lack of available information and resources related to shoreline positional data has created challenges in assessing and planning for coastal hazards such as erosion. To address this identified data need, the Alaska Division of Geological & Geophysical Surveys (DGGS) has created the Alaska Shoreline Change Tool, an interactive map that displays historical and projected shoreline positions. This new tool will improve hazard assessments and aid in local management decisions. The Alaska Shoreline Change Tool contains the best available information for shoreline change analysis in Alaska. These data come from many sources and include contributions from shoreline mapping projects conducted by numerous investigators. This digital data distribution package provides digitized, historic shorelines that are proximal to the community of Unalakleet.

Organization: State of Alaska
Historically active volcanoes of Alaska

This data lists the historically active volcanoes of Alaska and the year of the last major eruptive event. The volcanoes listed meet at least one of the following criteria since 1700 CE: 1) Documented, unquestioned eruption OR 2) A strongly suspected eruption, often an eruption documented in a historical account with very little information. Current geologic knowledge must not contradict the eruption account, OR 3) Persistent (usually on the order of decades, but certainly longer than several months) fumaroles, with temperatures (where measured) within approximately 10 degrees C of the boiling point, OR 4) Significant, measured, volcanic-related, non-eruptive deformation, OR 5) Documented earthquake swarm with strongly suspected volcanic cause.

Tags: active volcanoes, alaska, alaska peninsula, alaska statewide maps, aleutian arc, aleutian islands, coastal and river, coastal and river hazards, geologic hazards, geology, hazards, historic eruption, state of, volcanic, volcanic eruption, volcano hazards, volcanoes, volcanology
Organization: State of Alaska
Shoreline change at Alaska coastal communities, Eek, 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, eek, 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
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. 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), philip smith mountains quadrangle, proposed natural gas pipeline, raster image, remote sensing, state of, trans-alaska pipeline, vegetation metric
Organization: State of Alaska
Geologic map of the Kanayut River area, Chandler Lake Quadrangle, Alaska

Geologic map of the Kanayut River area, Chandler Lake Quadrangle, Alaska, Preliminary Interpretive Report 2009-7, presents 1:63,360-scale geologic mapping of the Kanayut River area in the Chandler Lake Quadrangle, North Slope, Alaska. The map area is located in the foothills of the Endicott Mountains. It is one of a series of areas selected for detailed mapping to document important structural and stratigraphic relationships along the east-central Brooks Range mountain front. The map delineates key stratigraphic and structural elements important to understanding Alaska's North Slope's oil and gas potential. The complete report, geodatabase, and ESRI fonts and style files are available from the DGGS website: http://doi.org/10.14509/19781.

Tags: alapah creek, albian, allochthon, alluvial, alluvium, anaktuvuk river, anaktuvuk river glaciation, antler valley creek, aptian, arenite, argillite, barite, basins, bedrock, bentonite, berriasian, bivalves, brachiopods, brookian sequence, brooks range, bryozoans, buchia, buchia limestone coquina, calcite, carbonates, cenomanian, chandler lake quadrangle, channel, chert, clay, coal, cobblestone member, cobblestone parautochthonous sequence, colluvium, colville basin foldbelt, conglomerate, coniacian, conodonts, contact, coquina, corals, cretaceous, crinoids, devonian, dggs, diabase, dolomite, ear peak, ear peak member, ellesmerian sequence, endicott mountain allochthon, energy section maps of interest, eolian, erosion, erratic creek, erratics, fan, flood, floodplain, fluvial, folding, folds, formations, fortress mountain formation, fossils, fracture, franklinian sequence, gastropods, gems db l3 compliant, gems db v1pt1, geologic map, geology, glaciation, grainstone, gravel, graywacke, halobia, holocene, hunt fork shale, hydrocarbon, igneous, iknivik creek, imnaitchiak chert, ipnavik river allochthon, irgkivik creek, itkillik glaciation, jurassic, kanayut bluff, kanayut conglomerate, kanayut river, kayak shale, lacustrine, lakes, limestone, lisburne group, loess, marine, marl, megafossils, microfossils, mississippian, monotis, moraines, mount wachsmuth, mountain, mudstone, naniksrak mountain, nanushuk formation, nanushuk river, nonmarine, north slope, npra, okpikruak formation, olistostrome, otuk formation, outwash, paleosols, peat, pebble, pelecypods, pennsylvanian, permeability, permian, porosity, pyrite, quartz, quartzite, quaternary, regressive, rocks, sagavanirktok, sagavanirktok river glaciation, sand, sandstone, seabee formation, sedimentary, sedimentation, shainin lake, shainin lake member, shale, shelf, siderite, siksikpuk formation, silt, siltstone, skolithos, slate, slope, slump, solifluction, statemap project, stuver member, surface, surficial, talus, tectonics, terrace, till, torok formation, transgressive, triassic, tuff, tuluvak formation, tundra, tundra creek, turbidite, turbidites, turbidity, turonian, valanginian, welcome creek, willow creek
Organization: State of Alaska
Lidar-derived elevation models for Homer, Alaska

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 Homer, Alaska. Detailed bare earth elevation data for Homer were collected and processed for use in a landslide hazard resiliency project for the City of Homer. Data coverage includes neighboring Kachemak City. 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 this project on June 19-20, 2019. 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/10.14509/30591).

Tags: bear canyon, beluga lake, bidarki creek, bluff point, bridge creek, carrie creek, city of homer, city of kachemak, coal point, cook inlet, crossman ridge, diamond creek, diamond gulch, diamond ridge, digital elevation model, digital surface model (dsm), digital terrain model, emergency preparedness, engineering, engineering geology, geologic, geology, geomorphology, geotechnical, hazards, homer, homer spit, kachemak bay, kachemak city, lampert lake, landslide, landslide susceptibility, lidar, mud bay, neilson canyon, palmer creek, point cloud data, remote sensing, surficial, surficial geology, topography, twitter creek, waterman canyon, web service, woodard canyon
Organization: State of Alaska
Geologic map of the Eagle A-1 Quadrangle, Fortymile mining district

This geologic map was produced by merging a bedrock geologic map and a surficial geologic map of the Eagle A-1 Quadrangle. Surficial geologic units were determined by a combination of air photo interpretation and site-specific field investigations. Bedrock geologic units were determined by using a combination of airborne magnetic and electromagnetic surveys, several months of fieldwork, geochemical data, and laboratory investigations. These maps are the result of new field investigations by DGGS in 1999 and 2001.

Tags: alaska, alluvial deposits, cenozoic, colluvial deposits, cretaceous, devonian, eagle quadrangle, fortymile mining district, fortymile river, fortymile river assemblage, geology, glacial deposits, holocene, igneous rocks, jack wade junction, jurassic, man-made deposits, mesozoic, metamorphic rocks, mining, mississippian, nasina series, paleozoic, pennsylvanian, permian, pleistocene, precambrian, quaternary, seventymile terrane, state of, statemap project, steele creek dome, taylor highway, tertiary, top of the world highway, triassic, unconsolidated deposits
Organization: State of Alaska
Zircon U-Pb and 40Ar/39Ar results from dikes collected within the Bruin Bay fault zone, lower Cook Inlet

This data release presents zircon U-Pb LA-ICP-MS geochronology from igneous rocks exposed in a coastal exposure at Ursus Head, Iliamna C-2 Quadrangle. Sills and dikes exposed in a coastal exposure at Ursus Head are deformed within the Bruin Bay fault zone. Common dikes intruding late Triassic Kamishak Formation strata composing the hanging-wall of the Bruin Bay fault are cut by numerous small-scale, low-angle, bedding-parallel, and high angle contractional faults. Sample 09MAW006A collected from one of many dikes deformed in the fault zone produced a uni-modal distribution of zircon ages of with a weighted mean of 206.92 +/-0.96 (2 sigma, n=47) and an MSWD of 1.1. Sample 09BG020C collected from a sill of more mafic composition yielded few zircons and produced only eight ages with a weighted mean of 212.49 +/-2.28 (2 sigma) and an MSWD of 3.42. The accompanying report also presents 40Ar/39Ar geochronology results from rocks collected roughly 7 km southwest of Contact Point, Iliamna B-3 Quadrangle.

Tags: 40ar/39ar, age dates, analyses, analyses and sampling, analytical lab results, analytical results, ar-ar, bedrock, bedrock geology, bruin bay fault, cenozoic, contact point, cook inlet, cook inlet basin, eocene, fault displacement, geochronology, geologic, geology, igneous, iliamna quadrangle, isotopes, lab methods, lead, mesozoic, methods, naknek, oligocene, plagioclase, rocks, sample location, stratigraphy, structural geology, structure, tectonics, triassic, u-pb, uranium, ursus head, volcanic, volcanic rocks, zircon
Organization: State of Alaska
Geochemical analyses of rock samples from the Tonsina area, Valdez Quadrangle, Alaska

The State of Alaska's Strategic and Critical Minerals (SCM) Assessment project, a State-funded Capital Improvement Project, is designed to evaluate Alaska's statewide potential for SCM resources. The SCM Assessment is being implemented by the Alaska Division of Geological & Geophysical Surveys (DGGS), and involves obtaining new airborne-geophysical, geological, and geochemical data throughout Alaska. In 2014 and 2015 DGGS also collected and geochemically analyzed 114 rock samples from mafic and ultramafic rocks to evaluate the Tonsina area's potential for platinum-group elements, nickel, and chromium; analytical results are presented in this report.

Tags: chugach mountains, geochemical data, geochemical surveys, geochemistry, geology, lab methods, major oxides, metals, mineral assessment, mineral deposit, mineral localities, mineral prospect, mineral resources, minerals, minor oxides, nickel, platinum group elements, rare earth elements, ree, resource information, resources, sample location, strategic and critical minerals assessment project, strategic minerals, tonsina, trace elements, trace geochemical, trace metals, ultramafic, valdez quadrangle
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 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, digital surface model (dsm), gasline, geomorphology, lidar, proposed natural gas pipeline, raster image, remote sensing, state of, talkeetna mountains quadrangle, trans-alaska pipeline, vegetation digital surface model (dsm)
Organization: State of Alaska
40Ar/39Ar data from rocks collected in 2013 in the Wrangellia mineral assessment area, Gulkana, Healy, Mount Hayes, and Talkeetna Mountains quadrangles, Alaska

This DGGS report presents 40Ar/39Ar age dating results from selected mafic to intermediate intrusions encountered during a geological and geochemical resource assessment project in the Gulkana, Healy, Mount Hayes, and Talkeetna Mountains quadrangles. Three intrusions returned mid-Cretaceous crystallization ages, while one olivine gabbro returned a Late Triassic crystallization age. Two altered or metamorphosed samples yielded Late Jurassic and Early Cretaceous ages. Analyses were performed by the University of Alaska Fairbanks Geochronology Laboratory, and results were reported by Paul Layer and Jeff Benowitz. Products included in this data release are: a summary of sample collection method; the laboratory report, analytical data tables and associated metadata; and plots of the 40Ar/39Ar age spectra, Ca/K ratios, and Cl/K ratios. All components of this data release are available on the DGGS website doi:10.14509/29119 at no charge.

Tags: 40ar/39ar, age dates, amphitheater mountains, analyses, analyses and sampling, analytical lab results, analytical results, ar-ar, bedrock, bedrock geology, cretaceous, geochronology, geology, gulkana quadrangle, healy quadrangle, jurassic, lab methods, late triassic, metamorphism, mineral assessment, mineral deposit, mineral resources, mount hayes quadrangle, platinum group elements, sample location, skarn, strategic and critical minerals assessment project, talkeetna mountains quadrangle, wrangellia terrane
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. 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, bettles quadrangle, data normalized digital surface model (ndsm), gasline, geomorphology, lidar, proposed natural gas pipeline, raster image, remote sensing, state of, trans-alaska pipeline
Organization: State of Alaska