Where is the hot rock and where is the ground water – Using CSAMT to map beneath and around Mount St. Helens

Journal of Environmental & Engineering Geophysics
By: , and 

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Abstract

We have observed several new features in recent controlled-source audio-frequency magnetotelluric (CSAMT) soundings on and around Mount St. Helens, Washington State, USA. We have identified the approximate location of a strong electrical conductor at the edges of and beneath the 2004–08 dome. We interpret this conductor to be hot brine at the hot-intrusive-cold-rock interface. This contact can be found within 50 meters of the receiver station on Spine 5, which extruded between April and July of 2005. We have also mapped separate regional and glacier-dome aquifers, which lie one atop the other, out to considerable distances from the volcano.

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Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Where is the hot rock and where is the ground water – Using CSAMT to map beneath and around Mount St. Helens
Series title Journal of Environmental & Engineering Geophysics
DOI 10.2113/JEEG21.2.79
Volume 21
Issue 2
Year Published 2016
Language English
Publisher Environmental & Engineering Geophysical Society
Contributing office(s) Volcano Science Center
Description 9 p.
First page 79
Last page 87
Country United States
State Washington
Other Geospatial Mount St. Helens
Online Only (Y/N) N
Additional Online Files (Y/N) N