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Spectra Used in Figures This dataset contains reflectance and transmission spectra of unexpanded and expanded vermiculite ore, and handpicked flakes of phlogopite, hydrobiotite, and vermiculite. These samples were collected from mines near Enoree, South Carolina; Libby, Montana; Louisa, Virginia; Palabora, Llano, Texas; and South Africa. Spectra are identified as either reflectance or transmission in the alphanumeric file names and correlate to specpr record numbers designated in the manuscript figures in which they are shown. These transmission spectra were converted to absorbance in many of the figures. Spectra of talc, fibrous richterite amphibole, and serpentine are from well characterized samples from Feiser Mine, Ruby Mountains,... Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: CGGSC, CMERSC, Central Minerals and Environmental Resources Science Center, China, Crustal Geophysics and Geochemistry Science Center, All tags... Enoree, Jiangsu, Libby, Libby, Louisa, MRP, Mineral Resources Program, Montana, Palabora, South Africa, South Carolina, VSPEC technique, Vermiculite insulation, Virginia, chemical analysis, electron probe microanalysis, electron probe microanalysis, elongate amphiboles, environment, expanded vermiculite, geoscientificInformation, mineral deposits, mineralogy, provenance, reflectance spectroscopy, scanning electron microscopy, spectroscopy, x-ray diffraction, Fewer tags Laboratory data from testing parameters of EPA Method 3060A on Soils Contaminated with Chromium Ore Processing Residue 2013-2016 It has been shown that Environmental Protection Agency (EPA) Method 3060A does not adequately extract Cr(VI) from solids containing chromium ore processing residue (COPR). We systematically modified parameters of EPA 3060A towards improving extraction efficiency of Cr(VI) from the National Institute of Standards and Technology (NIST) standard reference material (SRM) 2701, a standard COPR-contaminated soil from New Jersey, USA. A material similar to NIST 2701 prepared in the laboratory from contaminated soil referred to as 2B was also analyzed. Extraction parameters tested were particle size, glass or polytetrafluoroethylene (PTFE) extraction vessels, volume of extraction solution to mass of sample, and extraction... Categories: Data; Types: Citation; Tags: CGGSC, City of Denver, Colorado, Crustal Geophysics and Geochemistry Science Center, EPA, All tags... Geochemistry, Hexavalent Chromium, Hudson County, MRP, Method 3060A, Mineral Resources Program, NIST, National Institute of Standards and Technology, New Jersey, SRM 2701, USGS Science Data Catalog (SDC), United States Environmental Protection Agency, chemical analysis, soil pollution, Fewer tags Sediment bioassay toxicity data from the Upper Columbia River, Washington, 2013-2014 This data release contains bioassay data from sediment toxicity tests conducted by the USGS Columbia Environmental Research Center (CERC) with 66 sediment samples collected from in and around the Upper Columbia River in the fall of 2013. Toxicity testing was conducted from fall 2013 through summer 2014 with the amphipod, Hyalella azteca, the midge Chironomus dilutus, and the mussel Lampsilis siliquoidea. Short-term toxicity endpoints (10-28 d) included survival, weight, and biomass of all test organisms. Long-term tests with amphipods (42 d) and midges (about 50 d) included reproduction endpoint. These data are intended to be used to characterize concentration-response relationships between metals concentrations... Categories: Data; Types: Citation; Tags: Columbia Environmental Research Center, Sediment toxicity, State of Washington, Upper Columbia River, Washington Water Science Center, All tags... benthic invertebrates, chemical analysis, environmental health, natural resource damage assessment, toxic metals, Fewer tags Table of Electron Probe Microanalyses of Vermiculite Samples This dataset contains results from electron microprobe analyses for expanded and unexpanded vermiculite samples. These data are provide for samples of vermiculite ore, expanded vermiculite insulation, horticultural products, aggregate, and packing materials derived from mines near Enoree, South Carolina; Libby, Montana; Louisa, Virginia; Palabora, South Africa; Jiangsu, China; and Llano, Texas. An ASCII text file of results is provided in comma-separated by value (csv) format. The file has the name “vermiculite_probe_microanalyses_data.csv”. Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: CGGSC, CMERSC, Central Minerals and Environmental Resources Science Center, China, Crustal Geophysics and Geochemistry Science Center, All tags... Enoree, Jiangsu, Libby, Libby, Louisa, MRP, Mineral Resources Program, Montana, Palabora, South Africa, South Carolina, VSPEC technique, Vermiculite insulation, Virginia, chemical analysis, electron probe microanalysis, electron probe microanalysis, elongate amphiboles, environment, expanded vermiculite, geoscientificInformation, mineral deposits, mineralogy, provenance, reflectance spectroscopy, scanning electron microscopy, spectroscopy, x-ray diffraction, Fewer tags Spectroscopy of Expanded Vermiculite Products and Insulation This dataset contains descriptions and analytical data (i.e., electron microprobe, X-ray diffraction, spectral reflectance, and scanning electron microprobe analyses) for unexpanded and expanded vermiculite samples. These data are provided for 52 samples of vermiculite attic insulation, horticultural products, aggregate, and packing materials derived from mines near Enoree, South Carolina; Libby, Montana; Louisa, Virginia; Palabora, South Africa; and Jiangsu, China collected from 2000 to 2016. Electron probe microanalysis and spectra of unexpanded ores from these locations and Llano, Texas are also given. Tables of electron microprobe and spectral absorption information are also included along with ascii listings... Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: CGGSC, CMERSC, Central Minerals and Environmental Resources Science Center, China, Crustal Geophysics and Geochemistry Science Center, All tags... Enoree, Jiangsu, Libby, Libby, Louisa, MRP, Mineral Resources Program, Montana, Palabora, South Africa, South Carolina, USGS Science Data Catalog (SDC), VSPEC technique, Vermiculite insulation, Virginia, chemical analysis, electron probe microanalysis, electron probe microanalysis, elongate amphiboles, environment, expanded vermiculite, geoscientificInformation, mineral deposits, mineralogy, provenance, reflectance spectroscopy, scanning electron microscopy, spectroscopy, x-ray diffraction, Fewer tags Whole rock, soil, sediment, x-ray diffraction, and electron microprobe analyses of samples from the Orange Hill-Bond Creek area, Nabesna Quadrangle, Alaska This data release includes geochemical, x-ray diffraction mineralogical, and electron probe microanalysis (EPMA) data on rocks, soils, and sediments collected near the Orange Hill and Bond Creek porphyry copper deposits, Nabesna quadrangle, Alaska. Geochemical analyses were completed by a laboratory under contract with the U.S. Geological Survey (USGS). Electron microprobe and x-ray diffraction mineralogical analyses were completed by personnel of the Central Region Minerals Program in Denver, Colorado. The samples were collected and analyzed during 2014 to 2016, selected to help characterize the distribution and composition of mineralized and unmineralized geologic materials in this remote part of the eastern Alaska... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Alaska, Alaska Range, Alder Gulch, Bond Creek, Chathenda Creek, All tags... EPMA, Geochemistry, Gold Hill, Mineralogy, Nabesna, Nabesna A-2 quadrangle, Nabesna A-4 quadrangle, Nabesna B-4 quadrangle, Nikonda Creek, Nutzotin Mountains, Orange Hill, Red Hill Creek, USGS Science Data Catalog (SDC), Valdez-Cordova County, Wrangell Mountains, Wrangell–Saint Elias National Preserve, XRD, airborne imaging spectroscopy, chemical analysis, copper, economy, electron probe micronanalysis, geochemistry, geoscientificInformation, hyperspectral, hyperspectral imaging, mineral resources, mineralogy, porphyry copper, rock, rock geochemistry, soil, soil chemistry, soil geochemistry, stream sediment, unconsolidated deposits, x-ray diffraction, Fewer tags Expanded Vermiculite Sample Descriptions This folder contains descriptions and analytical data (i.e., electron microprobe, X-ray diffraction, spectral reflectance, and scanning electron microprobe analyses) for unexpanded and expanded vermiculite samples. These data are provided for 52 samples of vermiculite attic insulation, horticultural products, aggregate, and packing materials derived from mines near Enoree, South Carolina; Libby, Montana; Louisa, Virginia; Palabora, South Africa; and Jiangsu, China collected from 2000 to 2016. X-ray diffraction data for a limited set of the 52 expanded vermiculite samples are also given in figures included in the sample description pdf files. Quantitative XRD diffractograms are included for an ore sample from each... Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: CGGSC, CMERSC, Central Minerals and Environmental Resources Science Center, China, Crustal Geophysics and Geochemistry Science Center, All tags... Enoree, Jiangsu, Libby, Libby, Louisa, MRP, Mineral Resources Program, Montana, Palabora, South Africa, South Carolina, VSPEC technique, Vermiculite insulation, Virginia, chemical analysis, electron probe microanalysis, electron probe microanalysis, elongate amphiboles, environment, expanded vermiculite, geoscientificInformation, mineral deposits, mineralogy, provenance, reflectance spectroscopy, scanning electron microscopy, spectroscopy, x-ray diffraction, Fewer tags Cottonwood Lake Study Area - Water Chemistry - Wetlands This dataset contains water chemistry measurements for all wetlands in the Cottonwood Lake Study Area, Stutsman County, North Dakota. Categories: Data; Types: Citation; Tags: Biochemical analysis, Biogeochemical cylcing, Biogeochemistry, Chemical analysis, Climatic change, All tags... Cottonwood Lake Study Area, Effects of climate change, Hydrology, Land use, Land use change, North Dakota, Northern Great Plains, Prairie Pothole Region, Stutsman County, USGS Science Data Catalog (SDC), United States of America, Water properties, Water quality, Water sampling, Wetland agriculture, Wetland ecosystems, Wetland functions, Wetlands, inlandWaters, Fewer tags Data Supporting The Geochemical Atlas of Alaska, 2016 A rich legacy of geochemical data produced since the early 1960s covers the great expanse of Alaska; careful treatment of such data may provide significant and revealing geochemical maps that may be used for landscape geochemistry, mineral resource exploration, and geoenvironmental investigations over large areas. To maximize the spatial density and extent of data coverage for statewide mapping of element distributions, we compiled and integrated analyses of more than 175,000 sediment and soil samples from three major, separate sources: the U.S. Geological Survey, the National Uranium Resource Evaluation program, and the Alaska Division of Geological & Geophysical Surveys geochemical databases. Various types of... Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alaska, Alaska, Data Processing, Data Series, North America, All tags... USGS Science Data Catalog (SDC), United States, chemical analysis, data integration, datasets, economy, elements, geochemical processes, geochemistry, geographic information systems, geology, geoscientific information, grid, hydrologic unit code, maps and atlases, mathematical modeling, raster, sediments, soils, Fewer tags Physical, chemical and bioassay data from an evaluation of metal-contaminated sediments and pore water from the Upper Columbia River, Washington, 2013-2014 This data release contains chemistry and toxicity data from sediment toxicity tests conducted by the USGS Columbia Environmental Research Center (CERC) with 66 sediment samples collected from in and around the Upper Columbia River in the fall of 2013. Toxicity testing was conducted from fall 2013 through summer 2014 with the amphipod, Hyalella azteca, the midge Chironomus dilutus, and the mussel Lampsilis siliquoidea. Short-term toxicity endpoints (10-28 d) included survival, weight, and biomass of all test organisms. Long-term tests with amphipods (42 d) and midges (about 50 d) included reproduction endpoint. Sediments were analyzed for physical and chemical characteristics, including particle size distribution,... Types: Citation; Tags: Columbia Environmental Research Center, Sediment toxicity, State of Washington, USGS Science Data Catalog (SDC), Upper Columbia River, All tags... Washington Water Science Center, benthic invertebrates, chemical analysis, environmental health, natural resource damage assessment, toxic metals, Fewer tags Mössbauer Spectral Data of Vermiculite Ore Data are provide for four samples of unexpanded vermiculite ore from mines near Enoree, South Carolina; Libby, Montana; Louisa, Virginia; Palabora, and South Africa. ASCII text files listings of Mossbauer data for each sample are provided in comma-separated by value (csv) files. These files have the file naming structure sampleid_mossbauer_spectra.csv, where sampleid is a unique alphanumeric code for each sample. These samples were chosen as representative of the ores from their various mine sources, having documentation verifying that they were collected directly from their sources. Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: CGGSC, CMERSC, Central Minerals and Environmental Resources Science Center, China, Crustal Geophysics and Geochemistry Science Center, All tags... Enoree, Jiangsu, Libby, Libby, Louisa, MRP, Mineral Resources Program, Montana, Palabora, South Africa, South Carolina, VSPEC technique, Vermiculite insulation, Virginia, chemical analysis, electron probe microanalysis, electron probe microanalysis, elongate amphiboles, environment, expanded vermiculite, geoscientificInformation, mineral deposits, mineralogy, provenance, reflectance spectroscopy, scanning electron microscopy, spectroscopy, x-ray diffraction, Fewer tags Cottonwood Lake Study Area - Water Chemistry - Wells This dataset contains water chemistry measurements for groundwater wells in the Cottonwood Lake Study Area, Stutsman County, North Dakota. Categories: Data; Types: Citation; Tags: Biochemical analysis, Biogeochemical cylcing, Biogeochemistry, Chemical analysis, Climatic change, All tags... Cottonwood Lake Study Area, Effects of climate change, Hydrology, Land use, Land use change, North Dakota, Northern Great Plains, Prairie Pothole Region, Stutsman County, USGS Science Data Catalog (SDC), United States of America, Water properties, Water quality, Water sampling, Wetland agriculture, Wetland ecosystems, Wetland functions, Wetlands, inlandWaters, Fewer tags SPECPR files containing spectra and associated descriptions of samples and spectra (including linked photos) SPECPRsplib07 This compressed archive includes: Files, in SPECPR format, containing spectral data and associated metadata descriptions: measured spectra (splib07a) spectra interpolated to a higher number of more finely-spaced channels (splib07b) spectra convolved to other spectrometers, for example Analytical Spectral Devices standard resolution (s07_ASD) AVIRIS-Classic 2014 characteristics (s07_AV14) Hyperspectral Mapper (HyMap) 2014 characteristics (s07_HY14) and others spectra resampled to multispectral sensors: ASTER Landsat 8 OLI Sentinel-2 MSI Worldview-3 Folders containing information linked to from the metadata descriptions in the SPECPR files: README: contains a HTML version of the USGS Data... Types: Citation; Tags: AVIRIS, Africa, Asia, Australia, Europe, All tags... North America, South America, biota, chemical analysis, environment, geoscientificInformation, hyperspectral imaging, imageryBaseMapsEarthCover, imaging spectroscopy, infrared imaging, mineralogy, multispectral imaging, reflectance spectra, remote sensing, spectral analysis, spectroscopy, vegetation, visible light imaging, Fewer tags Spectral plots provided as GIF images GIFplots Files containing GIF images of spectral plots: GIFplots_splib07a.zip contains plots of measured spectra, including plots showing the full wavelength range of the measured spectra, organized in chapter sub-folders as described previously for the ASCII data. plots showing specific portions of the electromagnetic spectrum are organized folders within the “plots_by_wavelength_region” folder, including: range1_uv_to_visible (0.2 - 1.0 microns) range2_visible_to_swir (0.2 - 2.5 microns) range3_swir (1.5 - 5.5 microns) range4_swir_to_mir (2.5 - 25 microns) range5_swir_to_fir_wavenumber (4,000 - 50 cm-1 which spans 2.5 - 200 microns) plots of spectra interpolated to a higher number of more finely-spaced... Types: Citation; Tags: AVIRIS, Africa, Asia, Australia, Europe, All tags... North America, South America, biota, chemical analysis, environment, geoscientificInformation, hyperspectral imaging, imageryBaseMapsEarthCover, imaging spectroscopy, infrared imaging, mineralogy, multispectral imaging, reflectance spectra, remote sensing, spectral analysis, spectroscopy, vegetation, visible light imaging, Fewer tags The Geochemical Atlas of Alaska, 2016 - Geochem Data A rich legacy of geochemical data produced since the early 1960s covers the great expanse of Alaska; careful treatment of such data may provide significant and revealing geochemical maps that may be used for landscape geochemistry, mineral resource exploration, and geoenvironmental investigations over large areas. To maximize the spatial density and extent of data coverage for statewide mapping of element distributions, we compiled and integrated analyses of more than 175,000 sediment and soil samples from three major, separate sources: the U.S. Geological Survey, the National Uranium Resource Evaluation program, and the Alaska Division of Geological & Geophysical Surveys geochemical databases. Various types of... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: Alaska, Alaska, Data Processing, Data Series, North America, All tags... United States, chemical analysis, data integration, datasets, economy, elements, geochemical processes, geochemistry, geographic information systems, geology, geoscientific information, grid, hydrologic unit code, maps and atlases, mathematical modeling, raster, sediments, soils, Fewer tags Spectra of materials in ASCII format ASCIIdata Files containing spectral data in ASCII text format: measured spectra (ASCIIdata_splib07a.zip), including wavelength positions and bandpass (Full-Width at Half-Maximum; FWHM) values of channels in the spectrometers utilized spectra interpolated to a higher number of more finely-spaced channels (ASCIIdata_splib07b.zip) spectra convolved to other spectrometers, including the wavelength positions and bandpass (FWHM) values of the channels in the spectrometers, for example Analytical Spectral Devices standard resolution (ASCIIdata_splib07b_cvASD.zip) AVIRIS-Classic 2014 characteristics (ASCIIdata_splib07b_cvAVIRISc2014.zip) Hyperspectral Mapper 2014 characteristics (ASCIIdata_splib07b_cvHYMAP2014.zip) and... Types: Citation; Tags: AVIRIS, Africa, Asia, Australia, Europe, All tags... North America, South America, biota, chemical analysis, environment, geoscientificInformation, hyperspectral imaging, imageryBaseMapsEarthCover, imaging spectroscopy, infrared imaging, mineralogy, multispectral imaging, reflectance spectra, remote sensing, spectral analysis, spectroscopy, vegetation, visible light imaging, Fewer tags Spectral Parameter Tables for Expanded Vermiculite Samples This dataset contains spectral parameters for absorption features found in reflectance spectra of expanded vermiculite samples. These data are provide for 52 samples of vermiculite attic insulation, horticultural products, aggregate, and packing materials derived from mines near Enoree, South Carolina; Libby, Montana; Louisa, Virginia; Palabora, South Africa; and Jiangsu, China collected from 2000 to 2016. Also included are two tables listing the spectral parameters for reflectance spectra of four expanded vermiculite samples selected to represent each of the four main historical sources of vermiculite (e.g., Libby, Montana; Enoree, South Carolina; Louisa, Virginia; and Palabora, South Africa) taken at normal spectral... Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: CGGSC, CMERSC, Central Minerals and Environmental Resources Science Center, China, Crustal Geophysics and Geochemistry Science Center, All tags... Enoree, Jiangsu, Libby, Libby, Louisa, MRP, Mineral Resources Program, Montana, Palabora, South Africa, South Carolina, VSPEC technique, Vermiculite insulation, Virginia, chemical analysis, electron probe microanalysis, electron probe microanalysis, elongate amphiboles, environment, expanded vermiculite, geoscientificInformation, mineral deposits, mineralogy, provenance, reflectance spectroscopy, scanning electron microscopy, spectroscopy, x-ray diffraction, Fewer tags Geochemical analysis of authigenic carbonates and chemosynthetic mussels at Atlantic Margin seeps (ver. 2.0, March 2019) First release: 2016 Revised: 2019 Isotopic analyses of authigenic carbonates and methanotrophic deep-sea mussels, Bathymodiolus sp., was performed on samples collected from seep fields in the Baltimore and Norfolk Canyons on the north Atlantic margin. Samples were collected using remotely operated underwater vehicles (ROVs) during three different research cruises in 2012, 2013, and 2015. Analyses were performed by several different laboratories, and the results are presented in spreadsheet format. Categories: Data; Types: Citation; Tags: Atlantic Ocean, Baltimore Canyon, CMHRP, Coastal/Marine Hazards and Resources, Ecological Functions and Services, All tags... Habitat, Natural Gas Resources, Norfolk Canyon, PCMSC, Pacific Coastal and Marine Science Center, Physical Habitats and Geomorphology, Physical/Chemical Features, Pleistocene, U.S. Geological Survey, USGS, biota, carbon-14 analysis, chemical analysis, chemical analysis, chemosynthesis, cold seep, geochemistry, geoscientificInformation, grab sampling, light stable isotope analysis, marine chemistry, mollusks, oceans, paleoceanography, radiometric dating, sea-level change, sedimentation, specimen collecting, uranium-thorium analysis, Fewer tags Sediment trap and water column chemistry, Baltimore Canyon, U.S. Mid-Atlantic Bight Time-series of sediment chemistry, including organic biomarker composition and bulk inorganic geochemical analytes, from samples collected over a one-year period in a sediment trap. The sediment traps were deployed at a depth between 603 m to 1318 m, and they were programmed to rotate a 250 mL sample bottle at 30 d intervals, delivering 12 samples during the 1-year deployment between August 2012 and June 2013. In addition, dissolved water column nutrient concentrations and water column trace element particulate concentrations were collected in Baltimore Canyon on the U.S. Mid-Atlantic Bight (MAB). Categories: Data; Types: Citation; Tags: Assessments, Atlantic Ocean, Atlantic Ocean, Baltimore Canyon, animal-sediment interactions, All tags... carbon-14 analysis, chemical analysis, environment, gas chromatography, geochemistry, geochemistry, geoscientificInformation, light stable isotope analysis, marine chemistry, marine sediments, oceans, particle flux, radiometric dating, sediment chemistry, sediment deposition, sediment erosion, sediment geochemistry, sediment transport, Fewer tags Text files in HTML format describing samples and spectra, including photos HTMLmetadata Text files in HTML-format containing metadata about samples and spectra. Also included in the zip file are folders containing information linked to from the HTML files, including: README: contains a HTML version of the USGS Data Series publication, linked to this data release, that describes this spectral library (Kokaly and others, 2017). The folder also contains an HTML version of the release notes. photo_images: contains full resolution images of photos of samples and field sites. photo_thumbs: contains low-resolution thumbnail versions of photos of samples and field sites. GENERAL LIBRARY DESCRIPTION This data release provides the U.S. Geological Survey (USGS) Spectral Library Version 7 and... Types: Citation; Tags: AVIRIS, Africa, Asia, Australia, Europe, All tags... North America, South America, biota, chemical analysis, environment, geoscientificInformation, hyperspectral imaging, imageryBaseMapsEarthCover, imaging spectroscopy, infrared imaging, mineralogy, multispectral imaging, reflectance spectra, remote sensing, spectral analysis, spectroscopy, vegetation, visible light imaging, Fewer tags 1 2 »