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Soil Biogeochemical Data from a Marine Terrace Soil Climo-Chronosequence Comp...
The storage and persistence of soil organic matter (SOM) is of critical importance to soil health, and to the terrestrial carbon cycle with implications for long-term climate... -
Mineralogical analyses of drill core samples from the Canyon uranium-copper d...
This data release compiles the X-ray diffraction and electron microscopy analyses of drill core samples collected by the U.S. Geological Survey that were selected to typify the... -
Global Geochemical Database for Critical Minerals in Archived Mine Samples
The Critical Minerals in Archived Mine Samples Database (CMDB) contains chemistry and geologic information for historic ore and ore-related rock samples from mineral deposits in... -
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... -
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... -
Oxide and Cation Compositions of Pyroxene Grains from Drill Core of the Dulut...
The table contains oxide and cation compositions of pyroxene grains from drill core in the Duluth Complex. The oxides were determined by electron probe microanalysis (EPMA) and... -
Petroleum geology data from hydrous and anhydrous pyrolysis residues for coal...
This data release contains programmed pyrolysis, organic petrographic (reflectance), and semiquantitative X-ray diffraction mineralogy data for subsurface coal and shale samples... -
Geochemistry and Environmental Tracer Data for Groundwater, Stream Water, and...
This data release is part of a study examining the use of near-stream groundwater discharge as a tool for Geochemical Exploration. Handcart Gulch is an unmined alpine watershed... -
Electron microprobe data for monazite and xenotime used in consideration of g...
The genetic origin of many gold deposits, including Pogo in Alaska, remains controversial with questions as to whether they formed due to magmatic-hydrothermal or metamorphic-... -
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... -
Electron microprobe analyses of hydrothermal muscovite crystals from gold-bea...
This data release provides geochemical results of in situ electron probe microanalyses of hydrothermal muscovite associated with gold-bearing quartz veins from the Klamath... -
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... -
An updated X-ray diffractogram library of geologic materials
The X-ray diffraction (XRD) pattern library presented here is intended for qualitative or quantitative mineralogical analysis of geologic materials. The original collection of... -
Imaging spectrometer reflectance data for Nabesna, Alaska
Approximately 1,900 line square kilometers of imagery were collected using a HyMap™ sensor (Cocks and others, 1998) mounted on a modified Piper Navajo aircraft. The aircraft was... -
Geochemical and mineralogical analyses of uranium ores from the Hack II and P...
This data release compiles the whole-rock geochemistry, X-ray diffraction, and electron microscopy analyses of samples collected from the uranium ore bodies of two mined-out... -
Mineral Occurrence data for the Eocene Green River Formation in the Piceance ...
This legacy database lists occurrences of minerals identified in the Green River Formation in the Uinta and Piceance Basins, Utah and Colorado using X-ray diffraction (XRD). The... -
Electron Probe Microanalyses of apatite, rutile, and titanite from stream sed...
The exploration for porphyry deposits in some parts of Alaska may require unconventional exploration geochemical methods, depending on type of cover. The Taurus deposit and... -
Data to accompany U.S. Geological Survey Scientific Investigations Report 201...
The dataset comprises analyses of core and surface samples collected in and around the Red Mountain porphyry Cu-Mo deposit, Santa Cruz County, Arizona. The dataset includes:... -
Mineral predominance data derived from calibrated Corescan© hyperspectral data
Mineral predominance data were a derivative product from the Corescan© reflectance data. Corescan Hyperspectral Core Imager Mark III (HCI-III) system data were acquired for hand... -
Data for a Comprehensive Survey of Fault Zones, Breccias, and Fractures in an...
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...
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