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Audiomagnetotelluric sounding data in the Silverton Caldera complex, Colorado, 2019; Station AMTAG04


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Reitman, J., Rodriguez, B.D., Brown, P.J., and Yager, D.B., 2021, Audiomagnetotelluric sounding data in the Silverton Caldera complex, Colorado, 2019: U.S. Geological Survey data release,


This dataset includes audiomagnetotelluric (AMT) sounding data collected in July 2019 in the Silverton Caldera complex, Colorado, in the Southern Rocky Mountain Volcanic Field, by the U.S. Geological Survey (USGS). Along with geologic mapping, airborne magnetics, airborne electromagnetics, and magnetotellurics, the USGS collected AMT data at 26 sites along five profiles ranging from 2 to 5 kilometers in length: across Red Mountain of the Silverton caldera, within the caldera in Eureka Graben, across the south-eastern margin of the caldera along Arrastra Gulch, across the southern margin of the caldera along the western margin of Kendall Mountain, and across the south-western margin of the caldera along South Fork Mineral Creek. The [...]


Attached Files

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AG04A1.BP1 5.83 KB text/plain
AG04A1.FC6 13.08 KB application/unknown
AG04A1.FC7 8.25 KB application/unknown
AG04A1.FC8 6.72 KB application/unknown
AG04A1.FC9 5.84 KB application/unknown
AG04A1.SD6 5.83 KB text/plain
AG04A1.SD7 3.9 KB text/plain
AG04A1.SD8 4.38 KB text/plain
AG04A1.SD9 2.94 KB text/plain
AG04A1.TS1 41.13 KB application/unknown
AG04A2.BP1 5.83 KB text/plain
AG04A2.FC6 54.77 KB application/unknown
AG04A2.FC7 33.27 KB application/unknown
AG04A2.FC8 25.27 KB application/unknown
AG04A2.FC9 22.52 KB application/unknown
AG04A2.SD6 29.9 KB text/plain
AG04A2.SD7 18.35 KB text/plain
AG04A2.SD8 24.12 KB text/plain
AG04A2.SD9 12.57 KB text/plain
AG04A2.TS1 41.13 KB application/unknown
ag04a21.sd8 4.85 KB text/plain
AG04A21.SD9 2.92 KB text/plain
AG04A22.SD8 4.85 KB text/plain
AG04A22.SD9 2.92 KB text/plain
AG04A23.SD8 4.85 KB text/plain
AG04A23.SD9 2.92 KB text/plain
AG04A24.SD8 4.85 KB text/plain
AG04A24.SD9 2.92 KB text/plain
AG04A25.SD8 4.85 KB text/plain
AG04A25.SD9 2.92 KB text/plain
AG04A26.SD8 4.85 KB text/plain
AG04A26.SD9 2.92 KB text/plain
amtag04.png thumbnail 192.29 KB image/png
BF6-9621.RSP 815 Bytes text/plain
BF6-9624.RSP 815 Bytes text/plain
BF6-9625.RSP 815 Bytes text/plain
EF-9515X.RSP 5.74 KB text/plain
EF-9515Y.RSP 5.74 KB text/plain
readme.txt 808 Bytes text/plain
USA-Colorado-Silverton_Caldera-2019-AMTAG04.edi 57.76 KB text/plain
Band Pass Cross Power File Format Description.txt 4.56 KB text/plain
Synchronous Detection Mode Cross Power File Format Description.txt 5.18 KB text/plain
Synchronous Detection Mode Fourier Coefficient Binary File Format Description.txt 4.12 KB text/plain
Time Series Binary File Format Description.txt 7.25 KB text/plain


The purpose of this data release is to provide audiomagnetotelluric (AMT) station locations and data to the public. The purpose of the survey is to help to characterize subsurface rock properties important for understanding surface water and groundwater quality issues, and also to improve knowledge of deep geologic structures that may have been conduits for hydrothermal fluids that formed mineral deposits. The study also has general applications to mineral resource assessments in other areas of the world, and to identify possible groundwater flow paths and associated geochemistry important in abandoned mine lands cleanup.

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