Benzel, William M.

About the author

ORCID: 0000-0002-4085-1876
Abandoned mines and quarries, Aluminum, Antimony, Arsenic, Atomic absorption analysis, Atomic emission spectroscopy, Barium, Beryllium, Biodegradation, Bismuth, Boron, Cadmium, Calcium, Carbon, Cerium, Cesium, Chromatography, Chromium, Cobalt, Contamination and pollution, Copper, Core analysis, Datasets, Drilling and coring, Dysprosium, Economic geology, Environmental health (human), Erbium, Europium, Food web, Gadolinium, Gallium, Gas chromatography, Geochemistry, Geophysics, Geospatial datasets, Germanium, Gold, Grain-size analysis, Groundwater, Hafnium, Holmium, Indium, Iron, Lanthanum, Lead, Lithium, Lutetium, Magnesium, Manganese, Mass spectroscopy, Mercury, Metallic mineral resources, Mine waste, Mineral deposits, Mineralogy, Molybdenum, Natural resource exploration, Neodymium, Nickel, Niobium, Particle-beam spectroscopy, Phosphorus, Potassium, Praseodymium, Radioactivity, Remote sensing, Rubidium, Samarium, Sand deposits, Scandium, Scanning electron microscopy, Selenium, Silicon, Silver, Sodium, Soil chemistry, Soil resources, Strontium, Sulfur, Tantalum, Tellurium, Terbium, Thallium, Thorium, Thulium, Tin, Titanium, Toxic trace element contamination, Transect sampling, Tungsten, Unconsolidated deposits, Uranium, Vanadium, Waste treatment and disposal, Water quality, Water sampling, X-ray diffraction, X-ray fluorescence, Ytterbium, Yttrium, Zinc, Zirconium, Mine sites, Mineral deposit areas, Wells, Uranium, JPEG, Microsoft Excel format, Portable Document Format, SPECPR format, TIFF, Columnar text, Comma-delimited text, GeoscientificInformation

Grain size, mineralogic, and trace-element data from field samples near Hinkley, California

Grain size distribution, photographic, and associated chemical and mineral analysis data for 36 sediment core and alluvium samples as well as SEM analysis on select grains from magnetic and heavy mineral separates collected in this area. Data are provided in CSV and JPEG formats with microprobe analyses presented as PDF reports with TIFF images.

Geochemical and mineralogical analyses of uranium ores from the Hack II and Pigeon deposits, solution-collapse breccia pipes, Grand Canyon region, Mohave and Coconino Counties, Arizona, USA

Whole-rock geochemistry, X-ray diffraction, and electron microscopy analyses of samples collected from the uranium ore bodies of two mined-out deposits in this area to understand the formation of this type of mineral deposit. Data are provided in Microsoft Excel, CSV, and PDF reports.

Geochemical and X-ray diffraction analyses of drill core samples from the Canyon uranium-copper deposit, a solution-collapse breccia pipe, Grand Canyon area, Coconino County, Arizona

These samples and their geochemistry reflect the variation of base-metal sulfide and uranium oxide mineralization within ore zones of the Canyon deposit. The ore mineralogy, and thus rock chemistry, can vary over short intervals (centimeters). Data are provided in Microsoft Excel and CSV formats.

Mineralogical analyses of drill core samples from the Canyon uranium-copper deposit, a solution-collapse breccia pipe, Grand Canyon area, Coconino County, Arizona, USA

X-ray diffraction and electron microscopy analyses of drill core samples that typify the uranium-copper ore bodies of the Canyon deposit, to understand mineral deposits of this type. Data are provided in Microsoft Excel, CSV, and PDF report formats.

Solid-phase data from cores at the proposed Dewey Burdock uranium in-situ recovery mine, near Edgemont, South Dakota

Geochemical and mineralogical analysis of uranium-bearing sandstone in order to help understand mineral deposits of this type.

Spectroscopy of Expanded Vermiculite Products and Insulation

Descriptions and analytical data (electron microprobe, X-ray diffraction, spectral reflectance, and scanning electron microprobe analyses) for unexpanded and expanded vermiculite samples, a mineral product with commercial applications. Data are provided in CSV format. Descriptions of the samples are provided as PDF reports.

Mineralogical and Chemical Data for Heavy-Mineral Concentrate Samples Collected in the Taylor Mountains Quadrangle, Alaska, 2004-2008

Geochemical and mineralogical measurements of 819 samples of heavy mineral concentrates. Data are provided in CSV format.

Laboratory data from testing parameters of EPA Method 3060A on Soils Contaminated with Chromium Ore Processing Residue 2013-2016

Data from a detailed analysis of a formal procedure that is used to extract Cr(VI) from solids containing chromium ore processing residue, Careful modification of the procedure was intended to improve its efficiency with which it extracts this chemical species from the materials under study. Data are provided in CSV format.

USGS Spectral Library Version 7 Data

Spectra measured with laboratory, field, and airborne spectrometers. The instruments used cover wavelengths from the ultraviolet to the far infrared (0.2 to 200 microns). Laboratory samples of specific minerals, plants, chemical compounds, and man-made materials were measured. In many cases, samples were purified, so that unique spectral features of a material can be related to its chemical structure. Data are provided in text format as well as the SPECtrum Processing Routines (SPECPR) format.

Linking geology and health sciences to assess childhood lead poisoning from artisanal gold mining in Nigeria

Approximately 400 young children have died and thousands more are affected. This study clarifies lead sources and exposure pathways, identifies other toxicants of concern and people at risk, and examines potential for similar lead poisoning globally.