Skip to main content

Grain size analysis

Grain Size Analysis Results from Field Samples near Hinkley, California

Dates

Publication Date
Start Date
2016-11-01
End Date
2018-08-01

Citation

Morrison, J.M., Benzel, W.M., Holm-Denoma, C.S., and Bala, S., 2018, Grain size, mineralogic, and trace-element data from field samples near Hinkley, California: U.S. Geological Survey data release, https://doi.org/10.5066/P9HUPMG0.

Summary

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 [...]

Contacts

Attached Files

Click on title to download individual files attached to this item.

Hinkley_Grain_Size_Photo_Documentation.zip 72.43 MB application/zip
Hinkley_Sample_Grain_Size_Analysis_Results.csv 3.31 KB text/csv
Hinkley_Sample_Grain_Size_Analysis_Data_Dictionary.csv 2.31 KB text/csv

Purpose

Data were collected to determine the source of several elements of interest, particularly chromium and arsenic in alluvium and core material from wells collected from the Hinkley area.

Item Actions

View Item as ...

Save Item as ...

View Item...