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Spatial Extent of Data

USGS Data Source

USGS Thesaurus Keywords

mass spectroscopy, chemical analysis, geochemistry, chromium, contamination and pollution, x-ray fluorescence, groundwater, unconsolidated deposits, scanning electron microscopy, rocks and deposits, atomic emission spectroscopy, soil chemistry

ISO 19115 Topic Category

health, geoscientificInformation

Other Subject Keywords

background level

Place Keywords

California, Hinkley

Grain Size Analysis Results from Field Samples near Hinkley, California

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 the Lahontan Regional Water Quality Control Board.

Get Data and Metadata
Author(s) Jean M Morrison orcid, William M Benzel orcid, Christopher S Holm-Denoma orcid, Sarah A Bala
Publication Date 2018-10-22
Beginning Date of Data 2016-11-01
Ending Date of Data 2018-08-01
Data Contact
Jean M. Morrison
DOI https://doi.org/10.5066/P9HUPMG0
Citation Morrison, J.M., Benzel, W.M., Holm-Denoma, C.S., and Bala, S.A., 2018, Grain Size Analysis Results from Field Samples near Hinkley, California: U.S. Geological Survey data release, https://doi.org/10.5066/P9HUPMG0.
Metadata Contact
Michaela R. Johnson
Metadata Date 2020-09-29
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License http://www.usa.gov/publicdomain/label/1.0/
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Harvest Source: ScienceBase
Harvest Date: 2021-11-19T04:42:53.907Z