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  4. Field portable X-ray fluorescence and associated quality control data for the western Mojave Desert, San Bernardino County, California
  5. Field portable X-ray fluorescence data for the western Mojave Desert, San Bernardino County, California

Field portable X-ray fluorescence data for the western Mojave Desert, San Bernardino County, California

Dates

Start Date
2015-02-01
End Date
2018-05-23
Publication Date

Citation

Groover, K.D., and Izbicki, J.A., 2018, Field portable X-ray fluorescence and associated quality control data for the western Mojave Desert, San Bernardino County, California: U.S. Geological Survey data release, https://doi.org/10.5066/P9CU0EH3.

Summary

These data were collected using field portable (handheld) X-ray fluorescence (pXRF) equipped with a 4-watt Ta/Au X-ray tube. Samples of surficial alluvium, rock, and archived drill cuttings from monitoring wells in the western part of the Mojave Desert, 60 to 210 kilometers (km) northeast of Los Angeles, California, were measured using as part of an investigation of naturally-occurring trace elements dissolved in groundwater. Surficial alluvium samples were collected from small stream channels draining distinct geologic units, or from previously mapped river deposits, and generally consisted of silt, sand, and granules to small pebbles. Twigs and other detritus were removed prior to measurement. Rocks were collected from outcrops or [...]

Contacts

Point of Contact :
Krishangi Groover, U.S. Geological Survey California Water Science Center
Originator :
Krishangi Groover
Metadata Contact :
Krishangi Groover, U.S. Geological Survey California Water Science Center
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase

Attached Files

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Field_portable_X-ray_fluorescence_data_for_the_western_Mojave_Desert_San_Bernardino_County_California.xml
Original FGDC Metadata
View 		83.68 KB application/fgdc+xml
Field portable X-ray fluorescence data for the western Mojave Desert, San Bernardino County, California.csv 678.3 KB text/csv

Purpose

These geochemical survey data and associated descriptive information for samples of alluvium, rock, and drill cuttings were used to understand changes in regional groundwater chemistry. Data are sufficient for evaluating changes in the chemistry of alluvium and rock in the western Mojave Desert for many trace elements, but some caution should be used when comparing these data to other types of geochemical data from different matrices or methods having different levels of accuracy and precision. The data may be used to derive maps, perform geospatial analyses, or to evaluate differences in local-scale geochemistry compared to regional or national geochemical databases. The information is intended to meet the needs of a wide community of users that includes State and Federal agencies, private industry, and the general public.

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  • USGS California Water Science Center

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