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  1. Near-surface geophysical data collected along streams near Silverton, Colorado, USA
  2. Frequency domain electromagnetic induction (FDEM) data collected around mine-impacted streams near Silverton, Colorado in September 2019

Frequency domain electromagnetic induction (FDEM) data collected around mine-impacted streams near Silverton, Colorado in September 2019

Dates

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

Citation

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

Summary

This child item contains frequency domain electromagnetic induction (FDEM) data collected along and around Cement Creek and California Gulch near Silverton, Colorado in support of other data collected at the site. The FDEM tool generates an EM field and measures eddy currents generated by conductive and/or magnetic materials in the subsurface in response to the applied field. A Geophex GEM-2 instrument with GPS was used with 5 frequencies ranging from 450 Hz to 18330 Hz. Additional details are contained in the ‘readme.txt’ files within each zip data directory.

Contacts

Point of Contact :
Neil C Terry
Originator :
Neil C Terry, Martin A Briggs, Elizabeth Rutila, Dale Werkema, Stephen Dyment
Metadata Contact :
Neil C Terry
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase

Attached Files

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

FDEM.jpg thumbnail 643.49 KB image/jpeg
ProcessedData.zip 30.25 MB application/zip
RawData.zip 46.81 MB application/zip
readme_FDEM.txt 1.06 KB text/plain
Silverton_FDEM_metadata.xml
Original FGDC Metadata
View 		10.36 KB application/fgdc+xml

Purpose

While fiber optic distributed temperature sensing (FO-DTS) and surface water synoptic sampling data were gathered to locate groundwater discharge zones and assess their chemistry, FDEM data were collected in an attempt to observe spatial patterning related to the discharge zones away from streams and into the ground. FDEM data were also collected in a small mountain peatland between Mogul Mine and Cement creek to observe spatial patterns of elevated electrical conductivity that may be related to the mine drainage. These data were collected in tandem with the self-potential (SP) and ground penetrating radar (GPR) components of this data release.
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Communities

  • USGS New York Water Science Center

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