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Principal facts of gravity data in the southern San Luis Basin, northern New Mexico Gravity data were collected from 2006 through 2015 to assist in mapping subsurface geology in the southern San Luis Basin, northern New Mexico. This data release provides principal facts for 566 new gravity stations that were acquired to fill in gaps in the existing public gravity data coverage. Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Geophysics, Questa, Rio Arriba County, Taos, Taos County, All tags... Tres Piedras, USGS Science Data Catalog (SDC), bouguer anomaly, free-air anomaly, geoscientificInformation, gravimeter measurement, gravitational field (earth), isostatic anomaly, Fewer tags Absolute gravity data from Pinal County, Arizona, 2019 This dataset contains absolute-gravity measurements made using an A-10 absolute gravity meter (Micro-g Lacoste, Inc.) in 2019 in Pinal County, Arizona. Measurements were made at a total of 19 different stations used by the Arizona Department of Water Resources (ADWR) to monitor aquifer-storage changes. Data are presented in tabular and spatial vector (point) form, including relevant parameters used for processing. Data were output by g software (Micro-g Lacoste, Inc.) version 9.12.04.23. A correction for laser-frequency drift was applied, based on regular calibration of the HeNe laser used in the A-10 against an iodine-stabilized laser. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arizona, Arizona Water Science Center, Pinal, Southwest Gravity Program, USGS Science Data Catalog (SDC), All tags... geophysics, gravimeter measurement, gravitational field (earth), groundwater, groundwater level, hydrogeology, inlandWaters, time series datasets, Fewer tags Data from "Gravity surveys for estimating possible width of enhanced porosity zones across structures on the Coconino Plateau, Coconino County, North-Central Arizona." This dataset includes gravity observations collected on the Coconino Plateau, Arizona, from 2015 to 2019 and reductions that were used to arrive at the gravity residual reported in the associated publication (Wildermuth, XXXX). Relative-gravity surveys were carried out using ZLS Burris relative-gravity meter. Absolute gravity values were taken from the closest NGS stations and relative-gravity differences were combined with nearby absolute gravity values using a least-squared network adjustment, as implemented in the software Gravnet (Hwang, C., Wang, C., Lee, L., 2002. Adjustment of relative gravity measurements using weighted and datum-free constraints. Comput. Geosci. 28, 1005–1015). Additional information about... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Coconino Plateau, Coconino Plateau, Southwest Gravity Program, USGS Science Data Catalog (SDC), biota, All tags... gravimeter measurement, gravity, Fewer tags Gravity data along the Little Colorado River near Leupp, Arizona, 2020-2021 This dataset represents the network-adjusted results of relative- and absolute-gravity surveys. Relative-gravity surveys were carried out using a ZLS Coporation Burris relative-gravity meter. The effect of solid Earth tides and ocean loading were removed from the data. Instrument drift was removed by evaluating gravity change during repeated measurements at one or more base stations, or between absolute-gravity stations. Absolute-gravity surveys were carried out using a Micro-g LaCoste, Inc. A-10 absolute-gravity meter. The vertical gravity gradient was assumed to be -3 microGal/cm at each absolute-gravity site. Relative-gravity differences and absolute-gravity data were combined using a least-squares network adjustment,... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Arizona Water Science Center, Coconino Country, Geophysics, Leupp, Little Colorado River, All tags... Navajo Nation, Southwest Gravity Program, USGS Science Data Catalog (SDC), geophysics, gravimeter measurement, gravitational field (earth), hydrogeology, Fewer tags Principal facts of regional gravity data in northeast Iowa Gravity data were collected from 2016 through 2018 to assist in mapping subsurface geology in northeastern Iowa. This data release provides principal facts for 1080 new gravity stations that were acquired to supplement existing public gravity data coverage. References cited: Blakely, R.J., 1995, Potential Theory in Gravity and Magnetic Applications, Cambridge University Press, 441 p. International Association of Geodesy, 1971, Geodetic reference system 1967: International Association of Geodesy Special Publication No. 3, 116 p. Morelli, C., ed., 1974, the International gravity standardization net 1971: International Association of Geodesy Special Publication no.4, 194 p. Plouff, Donald, 1977, Preliminary documentation... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Benton County, Black Hawk County, Bremer County, Buchanan County, Chickasaw County, All tags... Clayton County, Delaware County, Fayette County, Geophysics, Iowa County, Johnson County, Jones County, Linn County, Mineral Resources, Tama County, USGS Science Data Catalog (SDC), bouguer anomaly, free-air anomaly, geoscientificInformation, gravimeter measurement, gravitational field (earth), isostatic anomaly, Fewer tags Principal facts of gravity data from the Stillwater Complex, Montana, 2013-2014 and 2020 Gravity data were collected during three separate campaigns during July of 2013, August and September of 2014, and September and October of 2020 at 168 sites on and around the Stillwater layered mafic complex in southern Montana. Measurements were taken with Lacoste & Romberg G-64, G-550, and G-161 gravimeters and reduced to obtain the complete Bouguer anomaly, with reference ties to absolute base stations at U.S. Post Offices in Spokane, Washington (2014), Billings (2013-2014) and Livingston (2020), Montana. This data release includes principal facts for 168 new gravity stations and shapefiles with field locations. Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Absaroka-Beartooth Wilderness, Beartooth Mountains, Billings Post Office, GGGSC, Geology, Geophysics, and Geochemistry Science Center, All tags... Livingston Post Office, MRP, Mineral Resources Program, Montana, Spokane, Stillwater, Sweet Grass, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), Washington, bouguer anomaly, free-air anomaly, geophysics, geoscientificInformation, gravimeter measurement, gravitational field (earth), isostatic anomaly, Fewer tags 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 Repeat microgravity data from Albuquerque and Bernalillo County, New Mexico, 2016-2021 (ver. 3.0, March 2023) This dataset represents the network-adjusted results of relative- and absolute-gravity surveys. Relative-gravity surveys were carried out using a Zero Length Spring, Inc. Burris relative-gravity meter. The effect of solid Earth tides and ocean loading were removed from the data. Instrument drift was removed by evaluating gravity change during repeated measurements at one or more base stations. Absolute-gravity surveys were carried out using a Micro-g LaCoste, Inc. A-10 absolute-gravity meter. Vertical gradients between the different measuring heights of the absolute- and relative-gravity meters were measured using a relative-gravity meter and tripod, and used to correlate the measurements between the two instruments.... Categories: Data, Data Release - Revised; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Albuquerque, Bernalillo County, NCCWSC, New Mexico, Southwest Gravity Program, All tags... USGS Science Data Catalog (SDC), gravimeter measurement, time series datasets, Fewer tags Repeat microgravity data from Kilauea Volcano, Hawaii These data are microgravity measurements collected at the summit of Kilauea Volcano, Hawaii. Data are collected using multiple instruments, with each file representing measurements from a specific instrument during a specific time period. The data dictionary explains the file format and contents, and the dataset will be updated as new measurements are collected. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Geophysics, Hawaii County 2, Hawaii Volcanoes National Park, USGS Science Data Catalog (SDC), Volcanology, All tags... geodesy, gravimeter measurement, volcano monitoring, Fewer tags Repeat microgravity data from the Big Chino Subbasin, 2001-2017, Yavapai County, Arizona This dataset contains absolute-gravity measurements made using an A-10 absolute gravity meter (Micro-g Lacoste, Inc.) between 2009 and 2017 in the Big Chino Subbasin, Yavapai County, Arizona. Measurements were made about 3 times per year at a total of 33 different stations. Data are presented in tabular form, including relevant parameters used for processing. Data were output by g software (Micro-g Lacoste, Inc.) version 9.12.04.23. A correction for laser-frequency drift was applied, based on regular calibration of the HeNe laser used in the A-10 against an iodine-stabilized laser. A second soil-moisture correction was applied based on satellite soil-moisture measurements, an infiltration model, and the elevation... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Arizona, Big Chino-Williamson Valley, Geophysics, Hydrogeology, Paulden, All tags... Southwest Gravity Program, USGS Science Data Catalog (SDC), Upper Verde, Water Resources, Yavapai, geophysics, gravimeter measurement, gravitational field (earth), groundwater, groundwater level, hydrogeology, oceans, time series datasets, Fewer tags Repeat microgravity data from the Hualapai Valley, Mohave County, Arizona, 2008-2019 This dataset contains absolute-gravity measurements made using an A-10 absolute gravity meter (Micro-g Lacoste, Inc.) in 2008, 2009, 2017, 2018, and 2019 in the Hualapai Valley, Mohave County, Arizona. Measurements were made at 9 different stations. Data are presented in tabular form, including relevant parameters used for processing. Data were output by g software (Micro-g Lacoste, Inc.) version 9.12.04.23. A correction for laser-frequency drift was applied to data collected in 2009 and 2017 to account for changes in laser wavelength during these periods. The correction is based on linear interpolation in time between regular calibrations of the HeNe laser used in the A-10 against an iodine-stabilized laser. ... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Arizona, Geophysics, Hualapai Valley, Hydrology, Mohave County, All tags... Southwest Gravity Program, USGS Science Data Catalog (SDC), gravimeter measurement, repeat microgravity, time series datasets, Fewer tags Repeat microgravity data from Tucson Basin and Avra Valley, Arizona, 2016-2019 This dataset supercedes an earlier data release and includes all previous data in addition to data from 2019. These data represent the network-adjusted results of relative- and absolute-gravity surveys. Relative-gravity surveys were carried out using a Micro-g LaCoste D-series relative-gravity meter. The effect of solid Earth tides and ocean loading were removed from the data. Instrument drift was removed by evaluating gravity change during repeated measurements at one or more base stations. Absolute-gravity surveys were carried out using a Micro-g LaCoste, Inc. A-10 absolute-gravity meter. Vertical gradients between the different measuring heights of the absolute- and relative-gravity meters were measured using... Categories: Data, Data Release - Revised; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arizona, Arizona Water Science Center, Avra Valley, Southwest Gravity Program, Tucson, All tags... USGS Science Data Catalog (SDC), Water Resources, geophysics, geoscientificInformation, gravimeter measurement, gravitational field (earth), groundwater, time series datasets, Fewer tags Repeat microgravity data from Mesilla Valley, New Mexico, 2016-2018 This dataset represents the network-adjusted results of relative- and absolute-gravity surveys. Relative-gravity surveys were carried out using a Zero Length Spring, Inc. relative-gravity meter. The effect of solid Earth tides and ocean loading were removed from the data. Instrument drift was removed by evaluating gravity change during repeated measurements at one or more base stations. Absolute-gravity surveys were carried out using a Micro-g LaCoste, Inc. A-10 absolute-gravity meter. Vertical gradients between the different measuring heights of the absolute- and relative-gravity meters were measured using a relative-gravity meter and tripod, and used to correlate the measurements between the two instruments. Relative-gravity... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Hydrogeophysics, Mesilla, New Mexico, Repeat microgravity, Southwest Gravity Program, All tags... USGS Science Data Catalog (SDC), Water Resources, gravimeter measurement, time series datasets, Fewer tags Surface electrical resistivity tomography, magnetic, and gravity surveys in Redwell Basin and the greater East River watershed near Crested Butte, Colorado, 2017 Surface electrical resistivity tomography (ERT), time-domain electromagnetics (TEM), nuclear magnetic resonance (NMR), magnetics, and gravity data were acquired in 2016, 2017 and 2018 in the greater East River Watershed near Crested Butte Colorado with a focused effort in Redwell Basin. Five ERT profiles were acquired within Redwell Basin and Brush Creek to map geologic structure at depths up to 40 meters, depending on the subsurface resistivity, using the Advanced Geosciences, Inc. SuperSting R8 resistivity meter. Approximately ten kilometers of total field magnetics data were acquired with a Geometrics G-858 cesium vapor magnetometer that detects changes in deep (tens of meters to kilometers) geologic structure... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Brush Creek, Colorado, Crested Butte, East River, Environmental Health, All tags... GGGSC, Geochemistry, Geology, Geophysics, and Geochemistry Science Center, Geophysics, Gothic, Gunnison County, Hydrology, MRP, Mineral Resources, Mineral Resources Program, Mount Emmons, Oh-be-joyful, Redwell Basin, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), Water Resources, bouguer anomaly, electrical resistivity tomography, environment, free-air anomaly, geophysics, geoscientificInformation, geospatial datasets, gravimeter measurement, gravitational field (earth), gravity, groundwater, hydrogeology, magnetic anomaly maps, magnetic field, magnetic surveying, magnetics, resistivity, water resources, Fewer tags Gravity 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. Ten gravity stations were acquired with a LaCoste and Romberg G-model relative gravimeter to map density variations. This data release includes principal facts for the gravity stations provided as digital data. Data fields are defined in the data dictionary. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, 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 Gravity data from the Truxton area, northwestern Arizona This dataset represents the network-adjusted results of relative- and absolute-gravity surveys. Data are provided in tabular (csv) and vector (shapefile) formats with one row per station.Relative-gravity surveys were carried out using a ZLS Coporation Burris relative-gravity meter. The effect of solid Earth tides and ocean loading were removed from the data. Instrument drift was removed by evaluating gravity change during repeated measurements at one or more base stations, or between absolute-gravity stations. Absolute-gravity surveys were carried out using a Micro-g LaCoste, Inc. A-10 absolute-gravity meter. The vertical gravity gradient was assumed to be -3 microGal/cm at each absolute-gravity site. Relative-gravity... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arizona Water Science Center, Geophysics, Hualapai Indian Reservation, Mohave Country, Peach Springs, All tags... Southwest Gravity Program, Truxton, USGS Science Data Catalog (SDC), Water Resources, geophysics, gravimeter measurement, gravitational field (earth), hydrogeology, Fewer tags Principal facts of regional gravity data in the central Upper Peninsula, Michigan, and northeastern Wisconsin Gravity data were collected from 2016 through 2019 to assist in mapping surface and subsurface geology in the central Upper Peninsula of Michigan and in neighboring northeastern Wisconsin. This data release provides principal facts for 1536 new gravity stations that were acquired to supplement existing public gravity data coverage. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Alger County, Delta County, Dickinson County, GGGSC, Geology, Geophysics, and Geochemistry Science Center, All tags... Iron County, Lacoste Romberg gravimeter, MRP, Marienette County, Marquette County, Menominee County, Michigan, Mineral Resources Program, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), Wisconsin, bouguer anomaly, free-air anomaly, geoscientificInformation, gravimeter measurement, gravitational field (earth), gravity measurement, isostatic anomaly, Fewer tags Bouguer gravity and magnetic susceptibility measurements at Iliamna Volcano, Alaska 2019 Gravity data were collected in August of 2019 at 21 sites on and around Iliamna Volcano and Anchorage, Alaska. Measurements were taken with a Lacoste & Romberg G-161 meter and reduced to obtain the complete Bouguer anomaly. A total of 39 magnetic susceptibility measurements were taken at 13 locations using a ZH Instruments SM30 susceptibility meter. This data release includes susceptibility measurements, processed gravity data, shapefiles with field locations, and site photos. Categories: Data; Types: Downloadable, GeoTIFF, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Raster; Tags: Alaska, Cook Inlet, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Geophysics, All tags... Iliamna, Iliamna Volcano, Kenai Peninsula, Lake Clark National Preserve, MRP, Mineral Resources Program, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), USGS Volcano Hazards Program, Volcanology, bouguer anomaly, free-air anomaly, geophysics, geoscientificInformation, gravimeter measurement, gravitational field (earth), isostatic anomaly, magnetic susceptibility, volcanology, Fewer tags Repeat microgravity data from Tucson Basin and Avra Valley, Arizona, 2016-2019 (COPY) This dataset supercedes an earlier data release and includes all previous data in addition to data from 2019. These data represent the network-adjusted results of relative- and absolute-gravity surveys. Relative-gravity surveys were carried out using a Micro-g LaCoste D-series relative-gravity meter. The effect of solid Earth tides and ocean loading were removed from the data. Instrument drift was removed by evaluating gravity change during repeated measurements at one or more base stations. Absolute-gravity surveys were carried out using a Micro-g LaCoste, Inc. A-10 absolute-gravity meter. Vertical gradients between the different measuring heights of the absolute- and relative-gravity meters were measured using... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arizona, Arizona Water Science Center, Avra Valley, Southwest Gravity Program, Tucson, All tags... USGS Science Data Catalog (SDC), Water Resources, geophysics, geoscientificInformation, gravimeter measurement, gravitational field (earth), groundwater, time series datasets, Fewer tags Repeat microgravity data from Santa Cruz River, Tucson, Arizona, 2020-2021 Relative-gravity surveys were carried out using a ZLS Burris relative-gravity meter. The effect of solid Earth tides and ocean loading were removed from the data. Instrument drift was removed by evaluating gravity change during repeated measurements at one or more base stations. Absolute-gravity surveys were carried out using a Micro-g LaCoste, Inc. A-10 absolute-gravity meter. Vertical gradients between the different measuring heights of the absolute- and relative-gravity meters were measured using a relative-gravity meter and fully-adjustable tripod, and used to correlate the measurements between the two instruments. Relative-gravity differences and absolute-gravity data were combined using a least-squares network... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Arizona, Arizona Water Science Center, Heritage, Southwest Gravity Program, Tucson, All tags... USGS Science Data Catalog (SDC), artificial recharge, geophysics, geoscientificInformation, gravimeter measurement, gravitational field (earth), groundwater, time series datasets, Fewer tags 1 2 »