Filters: Tags: x-ray fluorescence (X) > partyWithName: U.S. Geological Survey (X)

Filters Date Range Past year (7) Past month (0) Past week (0) Past day (0) Custom range... To   Search Extensions Shapefile (2) Raster (1) Types Downloadable (3) Map Service (3) OGC WFS Layer (2) OGC WMS Layer (2) Shapefile (2) More... Contacts U.S. Geological Survey - ScienceBase Jean M. Morrison Krishangi Groover Zachary Clifton Chris S. Holm-Denoma More... Categories Data (16) Collection (1) Tag Types Theme (16) Place (16) Other (1) USGS Scientific Topic Keyword (1) Harvest Set (1) Tag Schemes USGS Thesaurus (15) Geographic Names Information System (GNIS) (11) ISO 19115 Topic Category (14) Common geographic areas (11) None (10) Alexandria Digital Library Feature Type Thesaurus (4) https://www.sciencebase.gov/vocab/category/NGGDPP/NGGDPPCollectionTheme (1) View Results as: JSON ATOM CSV

Contract laboratory results Samples were submitted for contract laboratory analysis as part of a study examining the occurrence of chromium and natural and anthropogenic hexavalent Chromium, Cr(VI) in groundwater. Data will be used to estimate naturally-occurring background Cr(VI) concentrations upgradient, near the plume margins, and downgradient from a mapped Cr(VI) contamination plume near Hinkley, CA (Izbicki and Groover, 2016). These Contract Lab results are part of the data release including grain-size distribution, photographic and associated chemical and mineral analysis data for 36 sediment core and alluvium samples as well as Scanning Electron Microscopy analysis on select grains from magnetic and heavy mineral separates collected... Categories: Data; Tags: California, Hinkley, atomic emission spectroscopy, background level, chemical analysis, All tags... chromium, contamination and pollution, geochemistry, geoscientificInformation, groundwater, health, mass spectroscopy, rocks and deposits, scanning electron microscopy, soil chemistry, unconsolidated deposits, x-ray fluorescence, Fewer tags Field portable X-ray fluorescence data for Hinkley and Water Valleys, San Bernardino County, California These data were collected using field portable (handheld) X-ray fluorescence (pXRF) equipped with a 4-watt Ta/Au X-ray tube. Samples of surficial alluvium, rock, and archived core material from existing auger- or sonic-drilled monitoring wells in Hinkley Valley and the adjoining Water Valley, 140 kilometers (km) northeast of Los Angeles, California, were measured as part of an investigation of naturally-occurring and anthropogenic hexavalent chromium, Cr(VI), concentrations in local groundwater. Surficial alluvium samples were collected from small stream channels draining distinct geologic units, or from previously mapped river deposits, and generally consisted of silt, sand, and granules to small pebbles. Twigs... Categories: Data; Tags: Arsenic, California, Chromium, Geochemistry, Hinkley, All tags... San Bernardino County, Uranium, Western Mojave Desert, X-ray fluorescence, environment, Fewer tags XRD: Qualitative mineralogy of Bulk (less than 2 mm) and heavy mineral separates Splits of samples were prepared of heavy mineral separates and bulk separates less than 2mm for analysis using X-ray diffraction (XRD) and results were interpreted to identify mineral components as part of a study examining the occurrence of chromium and natural and anthropogenic hexavalent Chromium, Cr(VI), in groundwater. Data will be used to estimate naturally-occurring background Cr(VI) concentrations upgradient, near the plume margins, and downgradient from a mapped Cr(VI) contamination plume near Hinkley, CA (Izbicki and Groover, 2016). These XRD results are part of a data release including grain size distribution, photographic, and associated chemical and mineral analysis data for 36 sediment core and alluvium... Categories: Data; Tags: California, Hinkley, atomic emission spectroscopy, background level, chemical analysis, All tags... chromium, contamination and pollution, geochemistry, geoscientificInformation, groundwater, health, mass spectroscopy, rocks and deposits, scanning electron microscopy, soil chemistry, unconsolidated deposits, x-ray fluorescence, Fewer tags Discrete Classifications of Landforms (Geomorphons) for Anne Arundel County, Maryland in 2017 This data release is part of a larger data release including data collected in the pursuit of identifying pre- and post-colonial riparian ecosystems found throughout Anne Arundel County, Maryland, USA. A single raster file is included, and represents a topological classification of the entire county according to a hydrologically conditioned Digital Elevation Model (DEM). These data were generated through the use of r.geomorphon, a GRASS GIS toolkit, to classify local terrain conditions into one of ten distinct landforms called geomorphons. Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Anne Arundel, Maryland, Upper Chesapeake Bay, carbon-14 analysis, faunal and floral census (microscopic), All tags... geoscientificInformation, ground penetrating radar, morphology (biological), physiographic features, sedimentation, x-ray fluorescence, Fewer tags pXRF: Heavy and light mineral separates Heavy and light mineral separates were extracted from the 36 collected field samples following a USGS procedure (Strong and Driscoll, 2016) and analyzed using the handheld portable X-ray fluorescence (pXRF) analyzer as part of a study examining the occurrence of chromium and natural and anthropogenic hexavalent Chromium, Cr(VI), in groundwater. Data will be used to estimate naturally-occurring background Cr(VI) concentrations upgradient, near the plume margins, and downgradient from a mapped Cr(VI) contamination plume near Hinkley, CA (Izbicki and Groover, 2016). These pXRF results are part of a data release including grain size distribution, photographic and associated chemical and mineral analysis data for 36... Categories: Data; Tags: California, Hinkley, atomic emission spectroscopy, background level, chemical analysis, All tags... chromium, contamination and pollution, geochemistry, geoscientificInformation, groundwater, health, mass spectroscopy, rocks and deposits, scanning electron microscopy, soil chemistry, unconsolidated deposits, x-ray fluorescence, Fewer tags Grain size analysis Grain size analysis using an Advantech Sonic Sifter Separator was conducted as part of a study examining the occurrence of chromium and natural and anthropogenic hexavalent Chromium, Cr(VI) in groundwater. Data will be used to estimate naturally-occurring background Cr(VI) concentrations upgradient, near the plume margins, and downgradient from a mapped Cr(VI) contamination plume near Hinkley, CA (Izbicki and Groover, 2016). Following field collection the samples were sieved into the greater than and less than 2 millimeter size fractions. The less than 2 millimeter fraction was sifted into seven grain size ranges. Each size fraction was weighed to 0.1 grams and photo documented. The cooperator for this study is... Categories: Data; Tags: California, Hinkley, atomic emission spectroscopy, background level, chemical analysis, All tags... chromium, contamination and pollution, geochemistry, geoscientificInformation, groundwater, health, mass spectroscopy, rocks and deposits, scanning electron microscopy, soil chemistry, unconsolidated deposits, x-ray fluorescence, Fewer tags St. Petersburg Coastal and Marine Science Center's Geologic Core and Sample Database This database contains a comprehensive inventory of geologic (coral, coral reef, limestone, and sediment) cores and samples collected, analyzed, published, and/or archived by, or in collaboration with, the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center (USGS SPCMSC). The SPCMSC Geologic Core and Sample Database includes geologic cores and samples collected beginning in the 1970s to present day, from study sites across the world. This database can be accessed through the CoreViewer 3.0 ArcOnline web mapping application, linked below. A copy of the data can also be downloaded from the web mapping application and the metadata is accessible through a link in the header of the application, as... Categories: Collection, Data; Tags: Alabama, Atlantic Ocean, Bahamas, Belize, Biological Collection, All tags... CTD measurement, Caribbean Sea, China, Florida, Geological Collection, Georgia, Gulf of Mexico, Honduras, Louisiana, Marshall Islands, Maryland, Mexico, Mississippi, Navassa Island, New Jersey, New Mexico, New York, Pacific Ocean, Phillippines, Puerto Rico, Texas, U.S. Virgin Islands, United States, Virginia, Washington, age estimation methods, atomic emission spectroscopy, augering, biota, box coring, bulk density, carbon isotope analysis, carbon-14 analysis, chemical analysis, contamination and pollution, coral, core analysis, cores, drilling and coring, environmentfaunal and floral census (microscopic), field sampling, geolocation measurement, geology, geoscientificInformation, grab sampling, grain-size analysis, information technology methods, isotopic analysis, laboratory method, luminescence dating, magnetic susceptibility, marine geology, mass spectroscopy, ndc_collection, oceans, paleomagnetic analysis, permeability, photography, piston coring, porosity, protists, push coring, radiometric dating, rock, rotary drilling, salinity, sample repositories, samples, sea surface temperature, sediment, slight stable isotope analysis, soil sciences, stratigraphy, subsampling, tomography, vibracoring, water chemistry, water quality, x-ray diffraction, x-ray fluorescence, Fewer tags Scanning electron microscopy (SEM) and Energy dispersive spectroscopy (EDS) Scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) were used to analyze acid residues from heavy mineral separates, polished grain mounts, and clays from sampled sediments as part of a study examining the occurrence of chromium and natural and anthropogenic hexavalent Chromium, Cr(VI) in groundwater. Data will be used to estimate naturally-occurring background Cr(VI) concentrations upgradient, near the plume margins, and downgradient from a mapped Cr(VI) contamination plume near Hinkley, CA (Izbicki and Groover, 2016). Results from EDS and SEM are presented as PDF reports and TIFF images. These data are part of a data release including grain size distribution, photographic and associated... Categories: Data; Tags: California, Hinkley, atomic emission spectroscopy, background level, chemical analysis, All tags... chromium, contamination and pollution, geochemistry, geoscientificInformation, groundwater, health, mass spectroscopy, rocks and deposits, scanning electron microscopy, soil chemistry, unconsolidated deposits, x-ray fluorescence, Fewer tags Ecological and Dendrological Data Collected Across Anne Arundel County, Maryland in 2019 This data release includes data collected in the pursuit of identifying pre- and post-colonial riparian ecosystems found throughout Anne Arundel County, Maryland, USA. Two comma-delimited tables are included. The first documents pollen records at various depths identified within sediment samples taken throughout the county's floodplains. The other describes morphological information identifying tree species found buried in-situ throughout the county. Categories: Data; Tags: Anne Arundel, Maryland, Upper Chesapeake Bay, carbon-14 analysis, faunal and floral census (microscopic), All tags... geoscientificInformation, ground penetrating radar, morphology (biological), physiographic features, sedimentation, x-ray fluorescence, Fewer tags XRD: Clay mineralogy Splits of the less than 38 micron size fraction were processed to make oriented clay mounts and analyzed using X-ray diffraction (XRD) as part of a study examining the occurrence of chromium and natural and anthropogenic hexavalent Chromium, Cr(VI) in groundwater. Data will be used to estimate naturally-occurring background Cr(VI) concentrations upgradient, near the plume margins, and downgradient from a mapped Cr(VI) contamination plume near Hinkley, CA (Izbicki and Groover, 2016). These clay mineralogy XRD results are part of a data release including grain size distribution, photographic, and associated chemical and mineral analysis data for 36 sediment core and alluvium samples as well as select grains from... Categories: Data; Tags: California, Hinkley, atomic emission spectroscopy, background level, chemical analysis, All tags... chromium, contamination and pollution, geochemistry, geoscientificInformation, groundwater, health, mass spectroscopy, rocks and deposits, scanning electron microscopy, soil chemistry, unconsolidated deposits, x-ray fluorescence, Fewer tags Ecological, Sedimentological, and Geochemical Results From 2019 Coring Along Main Creek and Bacon Ridge Branch, Anne Arundel County, Maryland This data release includes data collected in the pursuit of identifying pre- and post-colonial riparian ecosystems found throughout Anne Arundel County, Maryland, USA. The single shapefile included documents the depths cored at both detailed study sites, and their spatial locations. Seventeen comma-delimited tables are included. Fourteen record pollen records at various depths identified within sediment cores taken at this study's two detailed investigation sites: Main Creek, near Pasadena, MD, and Bacon Ridge Branch, near Crownsville, MD. The remaining three include: radiocarbon dates associated with woody material identified in these sediment cores, visible, near-infrared, and X-ray Fluorescence (XRF) information... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Anne Arundel, Maryland, Upper Chesapeake Bay, carbon-14 analysis, faunal and floral census (microscopic), All tags... geoscientificInformation, ground penetrating radar, morphology (biological), physiographic features, sedimentation, x-ray fluorescence, Fewer tags Field portable X-ray fluorescence data for the western Mojave Desert, San Bernardino County, California These data were collected using field portable (handheld) X-ray fluorescence (pXRF) equipped with a 4-watt Ta/Au X-ray tube. Samples of surficial alluvium, rock, and archived drill cuttings from monitoring wells in the western part of the Mojave Desert, 60 to 210 kilometers (km) northeast of Los Angeles, California, were measured using as part of an investigation of naturally-occurring trace elements dissolved in groundwater. Surficial alluvium samples were collected from small stream channels draining distinct geologic units, or from previously mapped river deposits, and generally consisted of silt, sand, and granules to small pebbles. Twigs and other detritus were removed prior to measurement. Rocks were collected... Categories: Data; Tags: Arsenic, Barstow, California, Chromium, El Mirage, All tags... Geochemistry, Joshua Tree, Newberry Springs, Ridgecrest, San Bernardino County, Twentynine Palms, Uranium, Victorville, Western Mojave Desert, X-ray fluorescence, environment, Fewer tags Field portable X-ray fluorescence data on standard reference materials associated with data in San Bernardino County, California These data were collected using field portable (handheld) X-ray fluorescence (pXRF) equipped with a 4-watt Ta/Au X-ray tube on two National Institute of Standards and Technology (NIST) certified standard reference materials 2710a and 2711a, a U.S. Geological Survey (USGS) certified standard reference material BHVO-2, and a silicon dioxide blank. These quality assurance data were collected as part of detailed pXRF studies in Hinkley and Water Valleys, 140 kilometers (km) northeast of Los Angeles, California, and as part of a regional geochemical survey in the western Mojave Desert, between 60 to 210 km northeast of Los Angeles. Measurements on National Institute of Standards and Technology (NIST) and U.S. Geological... Categories: Data; Tags: Arsenic, Barstow, California, Chromium, El Mirage, All tags... Geochemistry, Hinkley, Joshua Tree, Newberry Springs, Ridgecrest, San Bernardino County, Twentynine Palms, Uranium, Victorville, Western Mojave Desert, X-ray fluorescence, environment, Fewer tags Ground-Penetrating Radar for Select Stations in Main Creek and Bacon Ridge Sites in Anne Arundel County, Maryland for 2021 This data release includes data collected in the pursuit of identifying pre- and post-colonial riparian ecosystems found throughout Anne Arundel County, Maryland, USA. Nine shapefiles are included, representing the depths of various soil layers as identified by ground-penetrating radar for two detailed study sites within Anne Arundel County, as well as an estimate of the agricultural horizon. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Anne Arundel, Maryland, Upper Chesapeake Bay, carbon-14 analysis, faunal and floral census (microscopic), All tags... geoscientificInformation, ground penetrating radar, morphology (biological), physiographic features, sedimentation, x-ray fluorescence, Fewer tags Major, Minor, and Trace Element Compositions of Bulk Drill Core Samples from the Duluth Complex, Minnesota This table reports major, minor, and trace element compositions of bulk drill core samples from the Duluth Complex, Minnesota. Major elements were measured using wavelength dispersive X-ray fluorescence (XRF) and inductively coupled plasma atomic emission spectrometry (ICP-AES); minor and trace elements were determined using ICP-AES, inductively coupled plasma mass spectrometry (ICP-MS), and hydride generation atomic absorption spectrometry (HGAAS). Total carbon, carbonate carbon, and total sulfur were also analyzed. Total carbon was measured by combustion followed by infrared detection on LECO instrumentation. Carbonate carbon in the bulk rock samples was determined as carbon dioxide by coulometric titration. Total... Categories: Data; Types: Citation; Tags: Cook County, Duluth, Environmental Health, Geochemistry, Lake County, All tags... Mineralogy, Minnesota, St. Louis County, USGS Science Data Catalog (SDC), economic geology, mass spectrometry, x-ray fluorescence, Fewer tags pXRF: Bulk (less than 2 mm) and size fractions Samples were analyzed using the handheld portable X-ray fluorescence (pXRF) analyzer as part of a study examining the occurrence chromium and of natural and anthropogenic hexavalent Chromium, Cr(VI) in groundwater. Data will be used to estimate naturally-occurring background Cr(VI) concentrations upgradient, near the plume margins, and downgradient from a mapped Cr(VI) contamination plume near Hinkley, CA (Izbicki and Groover, 2016). Relative concentrations for 18 elements of interest were measured on the less than 2mm and sized- fraction splits of the 36 field samples. Greater than 20 percent of the samples analyzed using pXRF also have Contract Laboratory results for comparison. These pXRF results are part of... Categories: Data; Tags: California, Hinkley, atomic emission spectroscopy, background level, chemical analysis, All tags... chromium, contamination and pollution, geochemistry, geoscientificInformation, groundwater, health, mass spectroscopy, rocks and deposits, scanning electron microscopy, soil chemistry, unconsolidated deposits, x-ray fluorescence, Fewer tags