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Magnetics Data Surface electrical resistivity tomography, magnetic, and gravity surveys were conducted in July 2017 in the greater East River Watershed near Crested Butte Colorado with a focused effort in Redwell Basin as part of a broader study of the role of bedrock groundwater in the hydrogeology of mineralized mountain watersheds. Approximately ten kilometers of total field magnetics data were acquired on July 29, 2017 with a Geometrics G-858 cesium vapor magnetometer that detects changes in deep (tens of meters to kilometers) geologic structure based on variations in the magnetic properties of different formations. This data release includes the raw and processed magnetics data. They are provided as digital data, and data... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Brush Creek, Colorado, Crested Butte, East River, GGGSC, All tags... Geology, Geophysics, and Geochemistry Science Center, Gothic, Gunnison County, MRP, Mineral Resources Program, Mount Emmons, Oh-be-joyful, Redwell Basin, U.S. Geological Survey, USGS, bouguer anomaly, electrical resistivity tomography, electromagnetic surveying, electromagnetics, environment, free-air anomaly, geophysics, geoscientificInformation, geospatial datasets, gravimeter measurement, gravitational field (earth), gravity, groundwater, hydrogeology, magnetic anomaly maps, magnetic field, magnetic surveying, magnetics, nuclear magnetic resonance, resistivity, water resources, Fewer tags Electrical resistivity tomography (ERT) data Surface electrical resistivity tomography (ERT), electromagnetic induction (EMI), and self-potential (SP) data were acquired March 9 - 20, 2018 by the U.S. Geological Survey, in collaboration with the U.S. Army Corps of Engineers, at the Jim Woodruff Lock and Dam near Chattahoochee, Florida. Eleven ERT profiles were acquired along the right (west) abutment, and immediately downstream, of the concrete, fixed-crest spillway located west of the lock to map geologic structure at depths up to 50 meters (m) using the Advanced Geosciences, Inc. SuperSting R8 resistivity meter. This data release includes the raw and processed resistivity data as well as inverted resistivity models. All are provided as digital data, and... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Apalachicola River, Chattahoochee, Chattahoochee River, Decatur County, ERT surveying, All tags... Flint River, Florida, GGGSC, Gadsden County, Geology, Geophysics, and Geochemistry Science Center, Georgia, Jackson County, Jim Woodruff Lock and Dam, Lake Seminole, Polk Lake, Suwannee Limestone, Tampa Limestone, U.S. Geological Survey, USGS, Upper Floridan Aquifer, dam, electrical resistivity imaging, electrical resistivity tomography, electromagnetic induction, electromagnetic surveying, electromagnetics, engineering sciences, environment, geophysics, geoscientificInformation, geospatial datasets, groundwater, hydrogeology, karst, resistivity, self-potential, sinkhole formation, spontaneous-potential, surface water (non-marine), water resources, Fewer tags Geochemical data used in the tungsten skarn mineral resource assessment of the Great Basin region of western Nevada and eastern California The U.S. Geological Survey (USGS) has undertaken a mineral resources assessment for tungsten for a portion of the Great Basin in parts of western Nevada and east-central California. This data release provides the Great Basin Tungsten Database: the geospatial and geologic data, and results of chemical analyses for 46,955 samples collected in the assessment area, extracted from the USGS National Geochemical Database. These rock records were collected as part of various programs and projects at the USGS and analyzed from 1963 to 2015. The database represents rock records, each comprising one best value chemical determination for each analyzed chemical species, that include skarns, carbonate lithologies (for example,... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: California, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Great Basin, MRP, All tags... Mineral Resource Assessment Training Program, Mineral Resources Program, NGDB, National Geochemical Database, Nevada, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), United States, aluminum, analytical chemistry, antimony, arsenic, atomic emission spectroscopy, barium, beryllium, bismuth, boron, bromine, cadmium, calcium, carbon, cerium, cesium, chemical analysis, chlorine, chromium, cobalt, copper, critical minerals, dysprosium, economic geology, erbium, europium, fluorine, gadolinium, gallium, geochemical data, geochemistry, geoscientificInformation, germanium, gold, hafnium, holmium, indium, iridium, iron, lanthanum, lead, lithium, lutetium, magnesium, manganese, mercury, metallic mineral resources, mineral deposits, mineral resources, molybdenum, neodymium, nickel, niobium, palladium, phosphorus, platinum, potassium, praseodymium, rhenium, rhodium, rock geochemistry, rocks and deposits, rubidium, ruthenium, samarium, scandium, selenium, silicon, silver, sodium, strontium, sulfur, tantalum, tellurium, terbium, thallium, thorium, thulium, tin, titanium, tungsten, uranium, vanadium, ytterbium, yttrium, zinc, zirconium, Fewer tags Audiomagnetotelluric survey to characterize the Sunnyside porphyry copper system in the Patagonia Mountains, Arizona This dataset includes audiomagnetotelluric (AMT) sounding data collected in 2008 in and near the Patagonia Mountains of southern Arizona. The U.S. Geological Survey (USGS) conducted a series of multidisciplinary studies as part of the Assessment Techniques for Concealed Mineral Resources project funded by the USGS Minerals Resources Program in cooperation with the U.S. Forest Service. The USGS used AMT data at six sites along a southwest-northeast profile of about 10 kilometers (km) across the northwest-trending Sunnyside porphyry copper system. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: AMT, Arizona, GGGSC, GPS measurement, Geology, Geophysics, and Geochemistry Science Center, All tags... MRP, MT, Mineral Resources Program, Patagonia Mountains, San Rafael Valley, Santa Cruz County, Sunnyside porphyry, USGS Science Data Catalog (SDC), apparent resistivity, audiomagnetotelluric, copper, economy, electric field (earth), geophysics, geoscientificInformation, impedance, impedance phase, impedance strike, magnetic field (earth), magnetotelluric, magnetotelluric surveying, sounding, tipper, Fewer tags Hydrologic and geophysical data from high-elevation boreholes in Redwell Basin near Crested Butte, Colorado Four boreholes (MW1, MW1UZ, MW2, MW2.1) were drilled in the fall of 2017 and summer of 2018 in upper Redwell Basin, a headwater catchment underlain by hydrothermally altered sedimentary rock in the Elk Mountains near the town of Crested Butte, Colorado. The boreholes were continuously cored using a wireline HQ-sized coring system and sample a combination of Quaternary-aged surficial colluvium and the Cretaceous-aged Mesaverde Formation. In-situ injection-based hydraulic tests were performed in MW1 and MW2 during drilling while advancing using a single-packer apparatus in tandem with an in-line flow meter and interval pressure monitoring. Borehole geophysical logging was performed in MW1, MW1UZ, and MW2.1 in the... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: Colorado, Crested Butte, Cretaceous, Elk Mountains, GGGSC, All tags... Geology, Geophysics, and Geochemistry Science Center, Geophysics, Gunnison County, Gunsight Pass, Hydrology, Hydrology, Lawrence Berkeley National Laboratory, MRP, Mesaverde Formation, Metal transport in mineralized mountain watersheds, Mineral Resources, Mineral Resources, Mineral Resources Program, Mount Sopris Instruments, Quaternary, Redwell Basin, Rocky Mountain Biological Laboratory, Subsurface Biogeochemical Research Program, U.S. Geological Survey (USGS), USGS Science Data Catalog (SDC), University of Wyoming, borehole logging, core analysis, drilling and coring, environment, geoscientificInformation, groundwater, groundwater level, hydrogeology, permeability, porosity, Fewer tags Whole-rock geochemical data for alkaline intrusive rocks in the Wet Mountains area of Custer and Fremont Counties, south-central Colorado, USA This data release contains the whole-rock major and trace element analyses of 51 samples of intrusive igneous rocks from the Wet Mountains area of Custer and Fremont counties of south-central Colorado, collected by U.S. Geological Survey (USGS) geologists. The samples were collected from breccias, veins and thin dikes, and a variety of carbonatite, felsic, mafic, and ultramafic intrusions across the area. The first 41 samples listed in this data release were collected in July 2007, originally as part of a reconnaissance study of the thorium deposits of the area (Van Gosen and others, 2009). The samples are grab samples from outcrops, shallow open-pit excavations, and mineral prospect trenches. The last 10 samples... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Colorado, Custer County, DOI, Democrat Creek, Department of the Interior, All tags... Economic Geology, Energy and Minerals Mission Area, Fremont County, GGGSC, Gem Park, Geochemistry, Geology, Geophysics, and Geochemistry Science Center, ICP-AES, ICP-MS, Inductively Coupled Plasma-Atomic Emission Spectrometry, Inductively Coupled Plasma-Mass Spectrometry, Iron Mountain, MRP, McClure Mountain, Mineral Resources, Mineral Resources Program, Region 7: Upper Colorado Basin, U.S. Geological Survey, USA, USGS, USGS Science Data Catalog (SDC), USGS:5e7130b3e4b01d50926823f3, United States of America, WDXRF, Wavelength Dispersive X-Ray Fluorescence Spectrometry, Wet Mountains, data release, economic geology, geochemistry, geology, geoscientificinformation, mass spectroscopy, metallic mineral resources, mineral resources, rare earth elements, south-central Colorado, thorium, Fewer tags Geochemical reanalysis of rock and sediment samples from the Middle Fork and South Fork of the Salmon River collected in the mid-1960s through the early 1970s as part of the Idaho Primitive Area studies This data release is a geochemical data set from the reanalysis of 23 rock and 85 sediment samples collected between 1966 and 1970 by the U.S. Geological Survey (USGS) for a series of studies investigating the mineral resources of the Idaho Primitive Area (Cater et al., 1973). The samples are from the upper Middle Fork Salmon River and the South Fork Salmon River, including the tributaries of East Fork of the South Fork and Porphyry Creek. The overall objective of this study is to characterize the regional impact of legacy mining for the Frank Church - River of No Return Wilderness Area. In 1980 the U. S. Congress passed the Central Idaho Wilderness Act which combined the Idaho Primitive Area, the Salmon Rivers... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Automatic Creek, Beansnapper Creek, Bear Creek, Big Chief Creek, Big Cottonwood Creek, All tags... Cabin Creek, Cache Creek, Cane Creek, Canyon Creek, Challis Volcanic Group, Colorado, Colt Creek, Cornish Creek, Cultus Creek, Dewey Mine, East Fork Indian Creek, East Fork South Fork Salmon River, East Fork Springfield Creek, East Fork Trail Creek, Forty-five Creek, Frank Church - River of No Return Wilderness Area, GGGSC, Geochemistry, Geology, Geophysics, and Geochemistry Science Center, Glass Mountain, Gunsight Formation, Idaho, Idaho Primitive Area, Indian Creek, Little Indian Creek, Little Loon Creek, Little Pistol Creek, Loon Creek, Luger Creek, MRP, Marble Creek, Mearney Creek, Middle Fork Indian Creek, Middle Fork Salmon River, Middle Fork terraces, Mineral Resources Program, North Fork Porphyry Creek, North Fork Wolf Fang Creek, Pistol Creek, Poee Creek, Porphyry Creek, Profile Creek, Pungo Creek, Rapid River, Ryan Creek, Salmon Rivers Breaks Primitive Area, Shrapnel Creek, Silver Plume, South Fork Salmon River, South Fork Wolf Fang Creek, Spring Creek, Springfield Creek, Sugar Creek, Sunnyside tuff, Tamarack Creek, Thirty-two Creek, Thunder Mountain Caldera, Trail Creek, Trigger Creek, Twenty-five Creek, USA, USGS Science Data Catalog (SDC), United States, Upper Middle Fork Salmon River, West Fork Little Loon Creek, West Fork Trail Creek, Wolf Fang Creek, alluvium, arsenic, atomic absorption analysis, atomic emission spectroscopy, biotite, carbonate rock, chemical analysis, clastic rock, conglomerate, copper, critical minerals, foliation, geochemistry, geology, gneiss, granite, granodiorite, hornblende, hornblende-biotite, hydride generation, lapilli tuff, mass spectroscopy, metallic mineral resources, migmatite, mineral deposits, mineral resources, mineralization, muscovite sulfides, muscovite-biotite, nonmetallic mineral resources, pebble conglomerate, phyllite, porphyry, quartz, rhyolite, rock drainage, sandstone, tributary, tuff, volcanic rock, Fewer tags Argon and SHRIMP-RG Data for Magmatic Steam Alunite, Sericite, and Zircon from Alunite Ridge and Deer Trail Mountain, Marysvale, Utah Samples of vein-type magmatic-steam alunite were collected over several field seasons from five mines and prospects (L&N, Mt. Edna, Christmas, upper Mineral Products, and Close In) in the Alunite Ridge and Deer Trail Mountain area, Marysvale, Utah, as well as a sample from the Deer Trail mine workings from which sericite was separated. The magmatic-steam alunite and sericite were analyzed by the 40Ar/39Ar method to constrain the timing and duration of magmatic activity associated with the intrusion of two porphyry stocks beneath Alunite Ridge and Deer Trail Mountain. In addition, a sample of a highly altered rhyolitic quartz porphyry dike was collected from the upper Mineral Products mine, from which zircons were... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: "Mineral Resources"], 40Ar/39Ar, Alunite Ridge, Deer Trail Mountain, Denver Argon Geochronology Laboratory, All tags... GGGSC, Geology, Geophysics, and Geochemistry Science Center, MRP, Marysvale, Mineral Resource Program, Piute, SHRIMP-RG U/Pb, Stanford-USGS Micro Analysis Center, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), Utah, ["Economic Geology", geochronology, geoscientificInformation, Fewer tags Audiomagnetotelluric data, Buffalo River watershed, Arkansas, 2017 This dataset includes the locations for audio-magnetotelluric (AMT) sounding data collected in August 2017 in the Buffalo River watershed of northern Arkansas by the U.S. Geological Survey (USGS). The sites were mostly alongside Osage Creek and its intermittent tributaries. Along with geologic mapping, the USGS used AMT data at 6 sites along a southwest-northeast profile of about 7 kilometers across the inferred northeastern margin of the Bear Creek uplift within the southern Ozark Dome to better constrain the buried, northeastern margin of the Bear Creek uplift. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: AMT, Arkansas, Bear Creek uplift, Boone County, Buffalo River, All tags... GGGSC, GPS measurement, Geology, Geophysics, and Geochemistry Science Center, MRP, MT, Mineral Resources Program, Newton County, Osage Creek, Ozark Dome, USGS Science Data Catalog (SDC), apparent resistivity, audiomagnetotelluric, economy, electric field (earth), geophysics, impedance, impedance phase, impedance strike, magnetic field (earth), magnetotelluric, magnetotelluric surveying, sounding, tipper, Fewer tags Airborne magnetic and radiometric survey, southeastern Illinois, western Kentucky, and southern Indiana, 2019 This publication provides digital flight line data for a high-resolution magnetic and radiometric survey over an area of southeast Illinois, western Kentucky, and southern Indiana. The survey includes airborne geophysical data collected as part of the U.S. Geological Survey (USGS) Earth Mapping Resource Initiative (Earth MRI) effort (Day, 2019). Earth MRI is a cooperative effort between the USGS, the Association of American State Geologists, and other Federal, State, and private sector organizations to improve our knowledge of the geologic framework of the United States. Data for this survey were collected by EON Geosciences under contract with the USGS using a fixed wing aircraft with a magnetometer mounted in... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: AASG, Association of American State Geologists, Ballard County, Caldwell County, Carlisle County, All tags... Crittenden County, EON Geosciences, Inc., Earth Mapping Resources Initiative, EarthMRI, Franklin County, GGGSC, Gallatin County, Geology, Geophysics, and Geochemistry Science Center, Geophysics, Graves County, Hamilton County, Hardin County, Henderson County, Hicks Dome, Hopkins County, Illinois, Indiana, Johnson County, Kentucky, Kentucky Lake, Livingston County, Lyon County, MRP, Marshall County, McCracken County, Mineral Resources Program, Paducah, Pope County, Posey County, Rn, Saline County, Shawnee National Forest, Trigg County, U.S. Geological Survey, USA, USGS, USGS Science Data Catalog (SDC), Union County, United States of America, Webster County, White County, Williamson County, aeromagnetic surveying, aeroradiometric surveying, airborne geophysical survey, economy, geophysics, geoscientificInformation, geospatial datasets, horizontal magnetic gradiometry, magnetic field (earth), potassium, radon, thorium, uranium, Fewer tags Airborne magnetic and radiometric survey, Ironton, Missouri area This publication provides digital flight line data for a high-resolution horizontal magnetic gradient and radiometric survey over the Ironton, Missouri area of southeast Missouri. Data were collected using a fixed wing aircraft with magnetometers mounted in the tail stinger and each wing tip pod and a fully calibrated gamma ray spectrometer. The survey operated out of the Farmington, Missouri airport during January to mid-February of 2016. The survey covers an irregularly shaped region within a 54 x 53 square-kilometer area centered on the town of Ironton, Missouri. Data were collected along north-south flight lines spaced 300 meters (m) apart with east-west tie lines flown every 3000 m. A mean terrain clearance... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: CGGSC, Cedar Hill, Crustal Geophysics and Geochemistry Science Center, Iron Mountain, Ironton, All tags... MRP, Mineral Resources Program, Missouri, Pilot Knob, Shepard Mountain, USGS Science Data Catalog (SDC), aeromagnetic surveying, aeroradiometric surveying, geophysics, geoscientificInformation, geospatial datasets, magnetic field (earth), magnetic surveying, Fewer tags Reanalysis of Selected Archived NURE-HSSR Sediment and Soil Samples from Alaska Selected archived sample splits collected as part of the National Uranium Resource Evaluation (NURE) Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) program, were reanalyzed by the U.S. Geological Survey (USGS) as part of a NURE-HSSR Reanalysis project (Smith and others, 2018). A small amount (approximately 0.25 grams [g]) of sieved less than 75-micron sample material was retrieved from the USGS National Geochemical Sample Archive for geochemical analysis. These samples were analyzed for 51 elements under a Technical Assistance Agreement with a third party by ALS Global laboratories using their ultra-trace four-acid-digestion dual-mode inductively coupled plasma-optical emission spectrometry/mass spectrometry... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Alaska, DOE, Economic Geology, GGGSC, Geochemistry, All tags... Geology, Geophysics, and Geochemistry Science Center, Hydrogeochemistry and Stream Sediment Reconnaissance, Iliamna, Lake Clark, Mineral Resources, NURE, NURE-HSSR, National Geochemical Sample Archive, National Uranium Resource Evaluation, Pebble Deposit, U.S. Department of Energy, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), United States, chemical analysis, environmental geochemistry, exploration geochemistry, geochemical data, geochemistry, lake sediment, natural resource exploration, sediment chemistry, sediment geochemistry, stream sediment, unconsolidated deposits, uranium, Fewer tags Airborne magnetic and radiometric survey, Boulder Batholith region, Montana, 2022 This data release provides digital flight line data for a high-resolution airborne magnetic and radiometric survey over parts of Montana in the vicinity of the Boulder Batholith. The airborne survey was jointly funded by the Earth Mapping Resources Initiative and Kennecott Exploration Company. The survey was designed to meet complementary needs related to geologic mapping and characterization of mineral resource potential. A total of 34,041 line km of magnetic and radiometric data were acquired over an irregular-shaped area of 6178 km. Data were collected from a helicopter flown at a nominal terrain clearance of 100 meters (m) above topography along E-W flight lines spaced at 200 m intervals. Tie lines were flown... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: AASG, Aeromagnetic survey, Aeroradiometric survey, Airborne geophysical survey, Association of State Geologists, All tags... Boulder Mountains, Boulder River, Broadwater County, Butte, Crow Creek, Deerlodge National Forest, Earth Mapping Resources Initiative, EarthMRI, Economic Geology, Elkhorn Mountains, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Geophysics, Geophysics, Geospatial datasets, Helena, Helena National Forest, Jefferson County, Lewis and Clark County, Little Blackfoot River, MRP, Magnetic field (earth), Mineral Resources, Mineral Resources, Mineral Resources Program, Montana, National Cooperative Geologic Mapping Program, Potassium, Powell County, Prickly Pear Creek, Sedimentology, Structural Geology, Thorium, Twin Bridges, U.S. Geological Survey, USA, USGS, USGS Science Data Catalog (SDC), United States, United States of America, Uranium, Whitetail Valley, biota, Fewer tags Alaska permafrost characterization: Geophysical and related field data collected from 2016-2017 Electrical resistivity tomography (ERT), downhole nuclear magnetic resonance (NMR), and manual permafrost-probe measurements were used to quantify permafrost characteristics along transects within several catchments in interior Alaska in late summer 2016 and 2017. Geophysical sites were chosen to coincide with additional soil, hydrologic, and geochemical measurements adjacent to various low-order streams and tributaries in a mix of burned and unburned watersheds in both silty and rocky environments. Data were collected in support of the Striegl-01 NASA ABoVE project, "Vulnerability of inland waters and the aquatic carbon cycle to changing permafrost and climate across boreal northwestern North America." Additional... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Active layer thickness, Alaska, Borehole nuclear magnetic resonance, Disturbance, Fire, All tags... GGGSC, Geology, Geophysics, and Geochemistry Science Center, Geophysics, Hydrologic processes, Organic layer thickness, Permafrost, Resistivity profiling, Soil Sciences, Soils, USGS Science Data Catalog (SDC), environment, fires, geoscientificInformation, hydrologic processes, permafrost, resistivity, soil moisture, Fewer tags Airborne electromagnetic and magnetic survey data, southeastern San Joaquin Valley near Cawelo, California, 2016 Airborne electromagnetic (AEM) and magnetic survey data were collected during October 2016 over a total distance of 262 line kilometers in the southeastern San Joaquin Valley near Cawelo, California. These data were collected in support of groundwater salinity mapping and hydrogeologic framework development as part of the U.S. Geological Survey California Oil, Gas, and Groundwater program and the California State Water Resources Control Board’s Oil and Gas Regional Monitoring Program. Data were acquired by SkyTEM ApS with the SkyTEM 312 time-domain helicopter-borne electromagnetic system together with a Geometrics G822A cesium vapor magnetometer. The survey was designed to cover the region hydrogeologically downgradient... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: CAWSC, California, California Water Science Center, Cawelo, GGGSC, All tags... Geology, Geophysics, and Geochemistry Science Center, Kern County, Poso Creek, Poso Creek Oil Field, San Joaquin Valley, USGS Science Data Catalog (SDC), aeromagnetic surveying, electromagnetic surveying, environment, geophysics, geoscientificInformation, geospatial datasets, groundwater, groundwater quality, hydrogeology, resistivity, salinity, Fewer tags Hydrologic reconnaissance to identify areas of emergent groundwater, Mineral Creek, near Silverton, Colorado, June 2020 Hydrologic reconnaissance of Mineral Creek near Silverton, Colo., was conducted from June 25-27, 2020. Both banks of Mineral Creek and the adjacent hillsides were walked, starting near the ghost town of Chattanooga and proceeding downstream to the confluence of Mineral Creek with the Middle Fork of Mineral Creek. The purpose of this reconnaissance was to identify areas of emergent groundwater on the right (EGR) and left (EGL) banks, a task that was accomplished by following observed surface flows (seeps and springs) upgradient to the point at which they emanated from the subsurface. Coordinates, using a handheld global positioning system (GPS) device, and photographs were obtained at these locations of emergent... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Bonita Peak Mining District, CWSC, Colorado, Colorado Water Science Center, GGGSC, All tags... Geochemistry, Geology, Geophysics, and Geochemistry Science Center, Hydrology, MRP, Mineral Creek, Mineral Creek, Mineral Resources, Mineral Resources Program, San Juan County, San Juan Mountains, Silverton, Silverton Caldera, Southern Rocky Mountains Volcanic Field, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), Water Quality, Water Resources, environment, geoscientificInformation, groundwater, hydrogeology, hydrology, water chemistry, Fewer tags Environmental tracer data from surface water and groundwater samples collected in Redwell Basin near Crested Butte, Colorado, 2017-2019 This dataset contains environmental tracer data from surface water and groundwater samples collected by the U.S. Geological Survey in Redwell Basin, an alpine watershed in the Elk Mountains near the town of Crested Butte, Colorado. The basin is underlain by interbedded shale and sandstone that have been variably hydrothermally altered and silicified by local magmatic intrusions. Samples were collected from 2017 to 2019 from bedrock monitoring wells completed at multiple depths, shallow hand-installed piezometers and mini boreholes, springs, mine adits, and streams. The tracer data include stable isotopes of water (oxygen-18 and deuterium), tritium, dissolved noble gases (He, Ne, Ar, Kr, Xe, and helium-3/helium-4... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Colorado, Crested Butte, Elk Mountains, Environmental Health, GGGSC, All tags... Geochemistry, Geology, Geophysics, and Geochemistry Science Center, Gunnison County, Hydrology, Lawrence Berkeley National Laboratory, MRP, Metal transport in mineralized mountain watersheds, Mineral Resources, Mineral Resources Program, Oh-be-joyful Creek, Redwell Basin, Redwell Creek, Rocky Mountain Biological Laboratory, Slate River, Subsurface Biogeochemical Research Program, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), Water Quality, alpine watershed, climate variability, dissolved gases, geoscientificInformation, groundwater, groundwater flow, isotopic analysis, mineralization, noble gas elements, recharge, surface water (non-marine), water chemistry, water quality, Fewer tags Data for a Comprehensive Survey of Fault Zones, Breccias, and Fractures in and Flanking the Eastern Española Basin, Rio Grande Rift, New Mexico This release provides the data for a comprehensive survey of geologic structures in the eastern Española Basin of the Rio Grande rift, New Mexico. The release includes data and analyses from 53 individual fault zones and 22 other brittle structures, such as breccia zones, joints, and veins, investigated at a total of just over 100 sites. Structures were examined and compared from poorly lithified Tertiary sediments, as well as Paleozoic sedimentary and Proterozoic crystalline rocks. Data and analyses, include geologic maps; field observations and measurements; orientation, kinematic paleostress analyses and modeling; statistical examination of 575 fault trace lengths derived from aeromagnetic data in the Española... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: CGGSC, Crustal Geophysics and Geochemistry Science Center, Deformation (geologic), Faulting (geologic), Fracture (geologic), All tags... GECSC, Geochemistry, Geologic structure, Geological Survey National Cooperative Geologic Mapping Program, Geology, Geophysics, Geosciences and Environmental Change Science Center, Laramide orogeny, MRP, Mineral Resources Program, Mineralogy, Mineralogy, NCGMP, New Mexico, Rio Grande rift, Santa Fe, Santa Fe County, Structural geology, Tectonic processes, USGS Science Data Catalog (SDC), Water Resources, X-ray diffraction, breccias, fault geochemistry, fault kinematics, fault length, fault rocks, fault structure, geoscientificInformation, impactites, Fewer tags Airborne magnetic survey over northeast North Dakota, 2000-2001 This data release is a re-release of an airborne geophysical survey carried out for the United States Geological Survey (USGS) by Spectra Exploration Geoscience Corp., from November 2000 to February 2001. The purpose of this survey was to acquire high-resolution, high-sensitivity aeromagnetic data over an area in northeast and north-central North Dakota and assess the area for anomalies and magnetic features pertaining to the local geology. To achieve this purpose, the survey area was systematically traversed by an aircraft carrying geophysical instruments along parallel flight lines (traverses) spaced 0.25 miles (400 meters) apart in an east-west alignment. Tie lines were flown normal to the traverses spaced at... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, OGC WFS Layer, OGC WMS Layer, Raster, Shapefile; Tags: <1GB, Cavalier County, Earth Mapping Resources Initiative, EarthMRI, Geology, Geophysics, and Geochemistry Science CenterGGGSC, All tags... MRP, Mineral Resources Program, North Dakota, Pembina County, Ramsey County, Spectra Exploration Geoscience Corperation, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), United States, United States of America, Walsh County, aeromagnetic surveying, airborne geophysical survey, economy, geophysics, geoscientificInformation, geospatial datasets, horizontal magnetic gradiometry, magnetic field (earth), vertical magnetic gradient, Fewer tags Quetrupillán Volcanic Complex, southern Chile: Argon age data and Pb, Sr, and Nd isotopic data This dataset accompanies planned publication 'Lava-ice interactions at late Pleistocene trachyte-basaltic andesite fissure eruptions, Quetrupillán Volcanic Complex (39°30′ S, 71°43′ W), southern Chile', as well as planned future publications on this volcanic complex. The Ar/Ar data and the Pb, Sr, and Nd data are for basalt and trachyte lava flows at Quetrupillán volcano. The Ar geochronology and isotope geochemistry will aid in the understanding of the timing of eruptive activity and glacial damming of lava flows, and magma source compositions studied in the planned publications. Samples were collected from Quetrupillán volcano by Dave McGarvie (Univ. of Lancaster, UK) and Isla Simmons (Univ. of Edinburgh, UK),... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: 40Ar/39Ar, Andes, Argon Geochronology Laboratory, Chile, Geology, Geophysics, and Geochemistry Science Center, All tags... Laguna Azul, Mineral Resources Program, Nd, Pb, Quetrupillán, Sr, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), basalt, geochronology, geoscientificInformation, mass spectrometry, radiometric dating, trachyte, Fewer tags « 1 2 3 4 5 ... 8 »