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Self-potential (SP) data collected in a mine-impacted wetland near Silverton, Colorado in September 2019

Dates

Start Date
2019-09-05
End Date
2019-09-11
Publication Date

Citation

Terry, N., Briggs, M., Rutila, E., Werkema, D., and Dyment, S., Rey, D., and Trottier, B., 2020, Near-surface geophysical data collected along streams near Silverton, Colorado, USA (ver. 2.0, May 2022): U.S. Geological Survey data release, https://doi.org/10.5066/P97HDPAY.

Summary

This child item contains self-potential (SP) data collected over a small alpine wetland between Mogul Mine and Cement Creek located near Silverton, Colorado. Mine-impacted water is transported to Cement Creek via surface channels and groundwater through this wetland. The SP method measures passive voltages in the subsurface using a high impedance voltmeter with one fixed electrode at a base station and one mobile electrode. Strong self-potential anomalies have been associated with ore bodies and sharp redox fronts. Data were collected with an Agilent U1252B multimeter with STELTH3 Ag-AgCl Model SRE-011-SPB porous pot electrodes. Additional details are contained in the ‘readme.txt’ file within this directory.

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Attached Files

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fieldnotes.txt 1.75 KB text/plain
readme_SP.txt 1.53 KB text/plain
SP.jpg thumbnail 563.28 KB image/jpeg
All_SP_Data_drift corrected.csv 16.01 KB text/csv
drift_table.csv 413 Bytes text/csv

Purpose

These SP data were collected experimentally to determine the potential of SP for future research at the field site. In particular, the data were collected to look at variations in natural potentials that may be indicative of electrical biogeochemical processes occurring at the site.
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Communities

  • USGS New York Water Science Center

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