What is it about?

We demonstrate, for the first time, that electrical resistivity tomography (ERT) profiles can be used to delineate subsurface fault-zone cementation. We also discovered the margin of a paleo-valley in the subsurface; it is an important control on the distribution of cementation.

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Why is it important?

Delineating cemented fault zones in the subsurface is of practical interest, particularly given the ability of cemented fault zones to affect subsurface fluid flow.


This project was fun and exciting because it was very interdisciplinary -- involving geologists, hydrogeologists, and geophysicists.

Glenn Spinelli
New Mexico Institute of Mining and Technology

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This page is a summary of: Detecting fault zone characteristics and paleovalley incision using electrical resistivity: Loma Blanca Fault, New Mexico, Geophysics, April 2021, Society of Exploration Geophysicists, DOI: 10.1190/geo2020-0375.1.
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