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USGS National and Global Oil and Gas Assessment Project-Permian Basin Province, Midland Basin, Wolfcamp Shale Assessment Units The Assessment Unit is the fundamental unit used in the National Assessment Project for the assessment of undiscovered oil and gas resources. The Assessment Unit is defined within the context of the higher-level Total Petroleum System. The Assessment Unit is shown herein as a geographic boundary interpreted, defined, and mapped by the geologist responsible for the province and incorporates a set of known or postulated oil and (or) gas accumulations sharing similar geologic, geographic, and temporal properties within the Total Petroleum System, such as source rock, timing, migration pathways, trapping mechanism, and hydrocarbon type. The Assessment Unit boundary is defined geologically as the limits of the geologic... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Assessment Unit, Continuous Assessment Unit, Earth Science, Economic geology, Energy Resources, All tags... Energy Resources, Geology, Midland Basin, Midland Basin Northern Wolfcamp Continuous Oil, Midland Basin Wolfcamp A Continuous Oil, Midland Basin Wolfcamp B Lower Continuous Oil, Midland Basin Wolfcamp B Upper Continuous Oil, Midland Basin Wolfcamp C Continuous Oil, Midland Basin Wolfcamp D Continuous Oil, National Assessment of Oil and Gas, Natural Gas, Natural Resources, Natural gas resources, Oil, Oil resources, Permian Basin, Resource Assessment, Texas, U.S. Geological Survey, U.S.A., USGS, USGS Science Data Catalog (SDC), USGS World Energy Region 5, USGS World Energy Region 5, Unconventional Assessment Unit, United States, geoscientificInformation, noga2000, oilgas, wolfcamp, Fewer tags USGS National Assessment of Oil and Gas Project - Uinta-Piceance Province, Mancos Formation Assessment Units The Assessment Unit is the fundamental unit used in the National Assessment Project for the assessment of undiscovered oil and gas resources. The Assessment Unit is defined within the context of the higher-level Total Petroleum System. The Assessment Unit is shown herein as a geographic boundary interpreted, defined, and mapped by the geologist responsible for the province and incorporates a set of known or postulated oil and (or) gas accumulations sharing similar geologic, geographic, and temporal properties within the Total Petroleum System, such as source rock, timing, migration pathways, trapping mechanism, and hydrocarbon type. The Assessment Unit boundary is defined geologically as the limits of the geologic... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Assessment Unit, Continuous Assessment Unit, Earth Science, Economic geology, Energy Resources, All tags... Energy Resources, Geology, Lower Mancos Tight Gas, Lower Niobrara Tight Gas, National Assessment of Oil and Gas, Natural Gas, Natural Resources, Natural gas resources, Oil, Oil resources, Resource Assessment, U.S. Geological Survey, U.S.A., USGS, USGS Science Data Catalog (SDC), USGS World Energy Region 5, USGS World Energy Region 5, Unconventional Assessment Unit, United States, Upper Mancos Tight Gas, Upper Niobrara Shale Gas, Upper Niobrara Shale Oil, geoscientificInformation, noga2000, oilgas, Fewer tags National Assessment of Oil and Gas - Cotton Valley Group and Travis Peak-Hosston Formation Assessment Units, Western Gulf and East Texas Basin and Louisiana-Mississippi Salt Basins Provinces (047, 048 and 049) The Assessment Unit is the fundamental unit used in the National Assessment Project for the assessment of undiscovered oil and gas resources. The Assessment Unit is defined within the context of the higher-level Total Petroleum System. The Assessment Unit is shown here as a geographic boundary interpreted, defined, and mapped by the geologist responsible for the province and incorporates a set of known or postulated oil and (or) gas accumulations sharing similar geologic, geographic, and temporal properties within the Total Petroleum System, such as source rock, timing, migration pathways, trapping mechanism, and hydrocarbon type. The Assessment Unit boundary is defined geologically as the limits of the geologic... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: 47 = Western Gulf, 48 = East Texas Basin, 49 = Louisiana-Mississippi Salt Basins, 504701 = Upper Jurassic-Cretaceous-Tertiary Composite, 50470108 = Cotton Valley Blanket Sandstone Gas, All tags... 50470109 = Cotton Valley Massive Sandstone Gas, 50470110 = Cotton Valley Updip Oil and Gas, 50470111 = Cotton Valley Hypothetical Updip Oil, 50470112 = Travis Peak-Hosston Gas and Oil, 50470113 = Travis Peak-Hosston Updip Oil, 50470114 = Travis Peak-Hosston Hypothetical Updip Oil, AL, AR, Assessment Unit, Condon, S.M., Dyman, T.S., Earth Science, East Texas Basin, Economic geology, Energy Resources, Energy Resources, FL, Geology, Gulf Coast, LA, Louisiana-Mississippi Salt Basins, MS, National Assessment of Oil and Gas, Natural Gas, Natural Resources, Natural gas resources, Oil, Oil sand resources, Oil shale resources, Resource Assessment, TX, U.S. Geological Survey, US01 = Alabama, US05 = Arkansas, US12 = Florida, US22 = Louisiana, US28 = Mississippi, US48 = Texas, USGS, USGS Science Data Catalog (SDC), USGS World Energy Region 5, USGS World Energy Region 5, United States, geoscientificInformation, gulfroom, noga2000, nogacvtp, nogaflorida, nogagulf, oilgas, Fewer tags Groundwater withdrawal zones for drinking water from the Mississippi River Valley alluvial aquifer and Mississippi embayment aquifers Of the approximately 6.6 million people living in the Mississippi embayment (MISE) region in the central United States, approximately 65 percent rely on groundwater for their drinking water (Dieter, Linsey, and others, 2017). Regional assessments of water quality in principal aquifer systems provide context for the long-term availability of these water resources for drinking-water supplies. To assess the current (2018) status of water quality in MISE in relation to drinking water supplies, groundwater withdrawal zones used for domestic and public supply were modeled using available groundwater well and hydrogeologic framework data. Three dimensional surfaces were modeled to map the depth zones at which groundwater... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, OGC WFS Layer, OGC WMS Layer, Raster, Shapefile; Tags: Alabama, Arkansas, Hydrology, Illinois, Kentucky, All tags... Louisiana, Mississippi, Tennessee, USGS Science Data Catalog (SDC), Water Quality, Water Resources, aquifer, drinking water use, groundwater, water quality, Fewer tags Hydrologic and Geochemical Data and Models Supporting Integrated Evaluation of the Captain Jack Superfund Site, Boulder County, Colorado The Captain Jack Superfund site near Ward, Colorado hosts extensive interconnected underground mine workings, which drain via the Big Five Adit. Drainage from the adit has historically been acidic with elevated concentrations of metals. In 2018 the U.S. Environmental Protection Agency (EPA) utilized a subsurface remediation strategy consisting of the installation of a hydraulic bulkhead within the workings to preclude drainage out of the mine. To understand the processes occurring during water impoundment within the mine workings, the U.S. Geological Survey (USGS), in cooperation with EPA, completed water-quality sampling and analysis during 2020 as water was impounded within the mine workings. The USGS sampling... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Boulder County, Colorado, Geochemistry, Hydrology, USGS Science Data Catalog (SDC), All tags... Ward, Water Quality, Water Resources, abandoned mines and quarries, geochemistry, groundwater age, groundwater quality, hydrology, mine drainage, mineral deposits, noble gas elements, oxygen isotope analysis, rare earth elements, tracer study, water-level measurements, Fewer tags Groundwater and surface water data for a regional assessment of groundwater salinity variations and sources in the Indio Subbasin of the Coachella Valley, California The U.S. Geological Survey collected groundwater samples from 17 wells in the Indio subbasin (CA basin designation 7-21.01) of the Coachella Valley and surface water samples from two sites representing sources of recharge to the Indio subbasin in 2021. These samples are intended to provide inorganic water quality data, particularly total dissolved solids (TDS), within areas of the Indio subbasin not sampled for the Groundwater Ambient Monitoring and Assessment (GAMA) Program Priority Basin Project’s assessment of the quality of groundwater used for domestic and small system drinking water supplies in Coachella Valley (CODA). Other areas of special interest for the Indio salinity study were nearby managed aquifer... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: California, Coachella Valley, Geochemistry, Groundwater, Groundwater age, All tags... Hydrology, Indio, Indio Subbasin, La Quinta, Palm Desert, Palm Springs, Riverside County, Salinity, Surface Water, TDS, USGS Science Data Catalog (SDC), Water Quality, Water Resources, Water quality, geoscientificInformation, Fewer tags Estimated Probabilities from Lidar Models for Marbled Murrelet (Brachyramphus marmoratus) Occupancy in Forest Vegetation Stands in the Siuslaw National Forest, Oregon We developed a LiDAR-based habitat model for the threatened Marbled Murrelet (MAMU) in the Siuslaw National Forest, Oregon, using a two-step approach. First, we tested the applicability of the LiDAR-based model developed for the Coos Bay District of the Bureau of Land Management (BLM) to the Siuslaw N.F. In the second step, we tested alternative habitat models developed with forest structural data and Murrelet survey data from the Siuslaw N.F. We compared the performance of each model to provide forest managers with the best predictive tool to guide habitat management for the Marbled Murrelet. This shapefile contains the probability of Marbled Murrelet occupancy values of each model for vegetation polygons defined... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Ecology, Forestry, Land Use Change, Oregon, Oregon Coast Range, All tags... Pacific Northwest, Remote Sensing, Siuslaw National Forest, USGS Science Data Catalog (SDC), Wildlife Biology, biota, birds, endangered species, environment, forest ecosystems, lidar, remote sensing, vegetation, Fewer tags USGS Gulf Coast Petroleum Systems and National and Global Oil and Gas Assessment Projects-Louisiana-Mississippi Salt Basins and Western Gulf Provinces, Upper Cretaceous Tuscaloosa Marine Shale Assessment Unit Boundaries and Assessment Input Data Forms This data release contains the boundaries of assessment units and input data for the assessment of undiscovered continuous oil and gas in the Upper Cretaceous Tuscaloosa Marine shale of the U.S. Gulf Coast. The Assessment Unit is the fundamental unit used in the National Assessment Project for the assessment of undiscovered oil and gas resources. The Assessment Unit is defined within the context of the higher-level Total Petroleum System. The Assessment Unit is shown herein as a geographic boundary interpreted, defined, and mapped by the geologist responsible for the province and incorporates a set of known or postulated oil and (or) gas accumulations sharing similar geologic, geographic, and temporal properties... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Assessment Unit, Continuous Assessment Unit, Energy Resources, Energy Resources, Geology, All tags... NOGA2000, National Assessment of Oil and Gas, Natural Gas, Oil, OilGas, Resource Assessment, State of Alabama, State of Florida, State of Louisiana, State of Mississippi, Tuscaloosa Marine Shale Continuous Oil, USGS Science Data Catalog (SDC), Unconventional Assessment Unit, United States of America, energy resources, geoscientificInformation, natural gas resources, oil resources, petroleum, Fewer tags Horizontal-to-vertical spectral ratio soundings and depth-to-bedrock data for valley-fill aquifers in the Oneonta area, Otsego and Delaware Counties, New York, 2016 - 2018 From 2016 through 2018, the U.S. Geological Survey, in cooperation with the New York State Department of Environmental Conservation, collected horizontal-to-vertical seismic soundings at 71 locations in the major valleys in the Oneonta area, Otsego and Delaware Counties, New York to help determine thickness of the unconsolidated deposits and the bedrock surface elevation. The HVSR technique, commonly referred to as the passive-seismic method, is used to estimate the thickness of unconsolidated sediments and the depth to bedrock (Lane and others, 2008; Fairchild and others, 2013). The passive-seismic method uses a single, broad-band three-component (two horizontal and one vertical) seismometer to record ambient seismic... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Aquifer, Aquifer Mapping, Basin & Hydrogeologic Characterization, Colliersville, Delaware County, All tags... Emmons, Geophysics, Goodyear Lake, Groundwater, Hydrology, Laurens, Milford Center, New York, Oneonta, Otsego County, Portlandville, Seismology, USGS Science Data Catalog (SDC), United States, Water Resources, Water Use and Availability Science, West Oneonta, Wilbur Lake, Fewer tags Little Dry Creek and Cottonwood Creek Sediment Transport Data, 2012-2018, San Joaquin Watershed in the California Central Valley Two tributary watersheds¬ Cottonwood Creek and Little Dry Creek¬ to the greater San Joaquin watershed, in California’s Central Valley were assessed for sediment and flow dynamics, between water years (Oct. 1 to Sept. 30) 2011 and 2019. The two systems deliver suspended sediment to the San Joaquin River below Friant Dam, California. Because these two creeks are directly down river of Friant Dam, they become the most upstream source of sediment to the San Joaquin River below Friant Dam. Thus, is it important to assess their contribution to the San Joaquin system. Flow from each creek watershed, along with the San Joaquin River, was compared to continuously measured water surface elevations to quantify flow direction... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Cottonwood Creek, Cottonwood Creek, Ecology, Geomorphology, Hydrology, All tags... Little Dry Creek, Little Dry Creek, San Joaquin River, San Joaquin River, Sediment transport, Sediment transport, Sedimentology, USGS Science Data Catalog (SDC), Water Quality, Water Resources, Wildlife Biology, inlandWaters, river systems, Fewer tags Geochemistry and Environmental Tracer Data for Groundwater, Stream Water, and Soil and Sediment from North Quartz Creek, Colorado This U.S. Geological Survey (USGS) data release contains data from stream water, groundwater, and soil samples collected in 2019 and 2020 in the North Quartz Creek watershed in central Colorado. Fourteen streambank wells were installed in pairs at seven locations in August 2020 to capture the emerging groundwater from the left bank and right banks (relative to downstream-facing direction) and a synoptic sampling campaign was conducted to quantify metal contributions to the stream. A continuous, instream injection of sodium bromide (NaBr) was initiated at the head of the 5 km study reach several days prior to the synoptic sampling campaign and maintained throughout the duration of the study. Bromide concentrations... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: "Environmental Health"], "Mineral Resources", "Water Quality", GGGSC, Geology, Geophysics, and Geochemistry Science Center, All tags... Gunnison County, Colorado, Gunnison National Forest, MRP, Mineral Resources Program, North Quartz Creek, Town of Pitkin, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), ["Geochemistry", abandoned mines and quarries, chemical tracer studies, environment, geochemistry, geochemistry, groundwater and surface-water interaction, groundwater geochemistry, inland waters, mine drainage, streambank well, sulfide-weathering, synoptic sampling, tracer injection, Fewer tags Distribution and Breeding Status of Least Bell’s Vireo Along the San Diego and Tijuana Rivers in San Diego County, California (2020) The spatial data results of USGS surveys for Least Bell's Vireo (Vireo bellii pusillus, LBVI) along the Tijuana River and San Diego River in 2020 to determine abundance and distribution of vireos to facilitate population trend analyses and collect information on dispersal and site fidelity of banded vireos as part of long-term demographic studies at multiple sites. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: San Diego County, San Diego River, Tijuana River, USGS Science Data Catalog (SDC), Wildlife Biology, All tags... biota, endangered species, southern California, wetland ecosystems, Fewer tags USGS National and Global Oil and Gas Assessment Project—West-Central Coastal Province (Africa) Presalt: Assessment Unit Boundaries, Assessment Input data, and Fact Sheet Data Tables This data release contains the boundaries of assessment units, assessment input data, and resulting fact sheet data tables for the assessment of undiscovered oil and gas resources in the presalt reservoirs of the West-Central Coastal Province of Africa. The Assessment Unit is the fundamental unit used in the National and Global Oil and Gas Assessment Project for the assessment of undiscovered oil and gas resources. The Assessment Unit is defined within the context of the higher-level Total Petroleum System. The Assessment Unit is shown herein as a geographic boundary interpreted, defined, and mapped by the geologist responsible for the province and incorporates a set of known or postulated oil and (or) gas accumulations... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Angola, Assessment Unit, Cameroon, Congo, Congo Basin Presalt Reservoirs, All tags... Conventional Assessment Unit, Democratic Republic of the Congo, Douala-Rio Muni Basin Presalt Reservoirs, Energy Resources, Energy Resources, Equatorial Guinea, Gabon, Gabon Basin Presalt Reservoirs, Geology, Kwanza-Benguela Basin Presalt Reservoirs, NOGA2000, Namibe Basin Presalt Reservoirs, Namibia, National Assessment of Oil and Gas, Natural Gas, Oil, OilGas, Resource Assessment, USGS Science Data Catalog (SDC), energy resources, geoscientificInformation, natural gas resources, oil resources, petroleum, Fewer tags The U.S. Inland Creel and Angler Survey Catalog (CreelCat): A Database and Interactive Tool for Inland Fisheries Management and Research The U.S. Inland Creel and Angler Survey Catalog (CreelCat) contains data compiled from 14,729 creel and angler surveys conducted by state natural resource management agencies (including Washington DC and Puerto Rico) in inland waters across the United States. Data are contained in eight .csv files which contain information about survey characteristics (Survey_Data.csv), angler effort (AngEffort_Data.csv), catch and harvest (FishDataCompiled.csv), angler demographics (Demographic_Data.csv), angler preferences (AngPrefDataCompiled.csv), taxonomic classifications (Taxa_Data.csv), issues with catch and harvest (Fish_Attribution_Issues.csv), and issues with angler preference (AngPref_Attribution_Issues.csv), as well... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Aquatic Biology, Ecology, USGS Science Data Catalog (SDC), United States, biota, All tags... fish, fisheries management, fisheries resources, inland fisheries resources, recreation, recreational fisheries resources, Fewer tags Wave thrust values at point locations along the shorelines of Massachusetts and Rhode Island This product provides spatial variations in wave thrust along shorelines in Massachusetts and Rhode Island. Natural features of relevance along the State coast are salt marshes. In recent times, marshes have been eroding primarily through lateral erosion. Wave thrust represents a metric of wave attack acting on marsh edges. The wave thrust is calculated as the vertical integral of the dynamic pressure of waves. This product uses a consistent methodology with sufficient spatial resolution to include the distinct features of each marsh system. Waves under different climatological wind forcing conditions were simulated using the coupled ADCIRC/SWAN model system. The estuarine and bay areas are resolved with horizontal... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Coastal Wetlands, Coastal processes, Geomorphology, Massachusetts, Mathematical modeling, All tags... Ocean waves, Rhode Island, Salt marsh, Shoreline, United States of America, Vulnerability, Wave attack, Wave thrust, biota, wetland ecosystems, Fewer tags Compilation of geologic slip rate constraints used in 1996—2014 U.S. National Seismic Hazard Models (ver. 2.0, February 2022) A key input for probabilistic seismic hazard analysis (PSHA) is geologic slip rate data. Here, we compile all geologic slip rates that are reportedly used in U.S. National Seismic Hazard Map (NSHM) releases from 1996, 2002, 2007, 2008, and 2014. Although a new NSHM was released in 2018, no changes were made in geologic slip rate data used. The geologic slip rates are collated from existing NSHM reports and documentation, and no new data are reported herein. The geologic slip rates are coupled with the fault geometries used in NSHM2014/2018 calculations. The data are presented spatially as a shapefile (SHP), in keyhole markup language (KML) and geoJSON. A readme file accompanies this dataset explaining details of... Categories: Data, Data Release - Revised; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Alaska, Arizona, California, Colorado, Geomorphology, All tags... Idaho, Montana, NSHM, National Seismic Hazard Model, Nevada, New Mexico, Oregon, Texas, USGS Science Data Catalog (SDC), United States, Utah, Washington, Wyoming, faults, geologic slip rates, Fewer tags Estimated crop irrigation water use withdrawals in Lower San Pedro Groundwater Basin, Arizona for 2020 Observations of irrigated agricultural land within the Lower San Pedro Groundwater Basin in Arizona. Crops were verified in situ once in 2020 on July 14th; based on digitized field boundaries. Field boundaries were digitized from U.S. Department of Agriculture, National Agricultural Imagery Program images dated 2019 and supplemented with Landsat and Sentinel2 imagery collections accessed via the U.S. Geological Survey LandLook Viewer (https://landlook.usgs.gov/) and Sentinel Hub, Sentinel Playground (https://apps.sentinel-hub.com/sentinel-playground). Satellite images were also used to identify the length of the growing season and crop condition. Water withdrawals were calculated using the modified Blaney-Criddle... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arizona, Cochise, Gila, Graham, Land Use Change, All tags... Lower San Pedro-Camp Grant Wash Groundwater Subbasin, Lower San Pedro-Mammoth Groundwater Subbasin, Pima, Pinal, USGS Science Data Catalog (SDC), Water Resources, agricultural sites, groundwater, irrigation, water use, Fewer tags Gas chemistry and isotope compositions at Sulphur Banks, Kīlauea Volcano, Hawai`i Sulphur Banks, near the summit of Kīlauea Volcano on the Island of Hawai`i, is a thermal area where volcanic gases and steam are discharged. A research well drilled in the 1920s at Sulphur Banks (Allen, 1922) has developed into a “fumarole” that has been used for gas sampling over the years (e.g., Friedman and Reimer, 1987; Hilton and McMurtry, 1997; Shinohara and others, 1999), but has not been subject to periodic monitoring. Following the 2018 Kilauea eruption, draining of the lava lake, and cessation of activity at the summit (Neal and others, 2019), Sulphur Banks represents a continuing window into the outgassing dynamics at Kīlauea’s summit. Gas samples were collected at Sulphur Banks periodically since March... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Geochemistry, USGS Science Data Catalog (SDC), Volcanology Estimated crop irrigation water use withdrawals in San Simon Valley Groundwater Subbasin of the Safford Groundwater Basin, Arizona for 2022 Observations of irrigated agricultural land within the San Simon Valley Groundwater Subbasin of the Safford Groundwater Basin. Digitized field boundaries were used to locate crops for in situ verification twice in 2022; crop verification occurred first on May 18th and again on August 24th. Field boundaries were digitized from U.S. Department of Agriculture, National Agricultural Imagery Program County Mosaic 2021 imagery for Arizona and supplemented with Landsat and Sentinel2 imagery collections accessed via the Sentinel Hub, Sentinel Playground (https://apps.sentinel-hub.com/sentinel-playground). Satellite images were also used to identify the length of the growing season and crop condition. Water withdrawals were... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arizona, Cochise, Land Use Change, Safford-San Simon Valley Groundwater Subbasin, USGS Science Data Catalog (SDC), All tags... Water Resources, agricultural sites, groundwater, irrigation, water use, Fewer tags Magnetotelluric sounding data in the Silverton Caldera complex, Colorado, 2019 This dataset includes magnetotelluric (MT) sounding data collected in July 2019 in the Silverton Caldera complex, Colorado, in the Southern Rocky Mountain Volcanic Field, by the U.S. Geological Survey (USGS). Along with geologic mapping, airborne magnetics, airborne electromagnetics, and audiomagnetotellurics, the USGS collected MT data at 24 sites along five profiles ranging from 2 to 5 kilometers in length: across Red Mountain of the Silverton caldera, within the caldera in Eureka Graben, across the south-eastern margin of the caldera along Arrastra Gulch, across the southern margin of the caldera along the western margin of Kendall Mountain, and across the south-western margin of the caldera along South Fork... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Animas River, Arrastra Gulch, Colorado, DOI, Department of the Interior, All tags... Economic Geology, Environmental Health, Eureka Graben, GGGSC, GPS measurement, Geology, Geophysics, and Geochemistry Science Center, Geophysics, Hydrology, Kendall Mountain, MRP, MT, Mineral Resources, Mineral Resources Program, Ouray County, Red Mountain, San Juan County, San Juan County, San Juan-Silverton Caldera Complex, Silverton, South Fork Mineral Creek, Southern Rocky Mountain Volcanic Field, Southern Rocky Mountains, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), Volcanology, Water Quality, abandoned mine lands cleanup, abandoned mines and quarries, apparent resistivity, economy, electric field (earth), geophysics, geoscientificInformation, hydrothermal processes, impedance, impedance phase, impedance strike, magnetic field (earth), magnetotelluric, magnetotelluric surveying, mineral deposits, mineral resources, sounding, tipper, water quality, Fewer tags « 1 ... 3 4 5 6 7 ... 23 »