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Table 02–Table 05-Quality-Assurance Data

Dates

Publication Date
Start Date
2012-08-01
End Date
2016-01-01

Citation

Smith, D.C., and Wilson, J.L., 2018, Quality-Assurance Data: U.S. Geological Survey data release, https://doi.org/10.5066/P9OFYN3C.

Summary

These data contain concentrations of major and trace elements in quality-assurance samples.These are the machine-readable versions of Tables 2–5 from the U.S. Geological Survey Scientific Investigations Report, Distribution of Mining Related Trace Elements in Streambed and Floodplain Sediment along the Middle Big River and Tributaries in the Southeast Missouri Barite District, 2012-15 (Smith and Schumacher, 2018). Table_2 contains concentrations of major and trace elements in regular and replicate streambed-sediment samples in samples BR-02 and BR-04. Each sample was sieved and analyzed for concentrations within the less than 2-, less than 0.250-, and less than 0.063-mm size fraction. Averaged relative percent difference (RPD) values [...]

Contacts

Project Chief :
David C Smith
Originator :
David C Smith, Jordan L Wilson
Publisher :
U.S. Geological Survey
Metadata Contact :
Jordan L Wilson, David C Smith
Distributor :
U.S. Geological Survey - ScienceBase
USGS Mission Area :
Water Resources
SDC Data Owner :
Missouri Water Science Center

Attached Files

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Table 02 - Table 05.zip 16.39 KB

Purpose

These data were used to determine the effect of splitting and sieving, the accuracy of each XRF unit, and whether splitting and sieving equipment were introducing contamination into samples.

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