Utah FORGE: Phase 3 Magnetotelluric (MT) Data

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New high-quality tensor MT data at 122 sites, including the vertical magnetic field and utilizing ultra-remote referencing, have been acquired over the Utah FORGE project area. The results will be used to delineate the densities of faults and fractures in crystalline basement rocks, to define the heat sources, and to derive baseline 3D resistivity structure for later MT monitoring of temporal changes in resistivity structure following well stimulation in the EGS reservoir.

There are three files here related to Utah FORGE magnetotelluric (MT) data acquisition and processing. The FORGE MT EDIs zip file contains the observed MT responses in industry-standard EDI format. For each site, there is an EDI response file that utilized a local independent reference for noise cancellation, and a file that utilized a distant reference cancelling noise associated with the DC transmission line of the Delta IPP passing down the west side of Milford Valley. These two site files could be merged as appropriate.

The FORGE Model Cell Center file contains the model volume of the 3D Forge MT inversion for characterizing the resistivity structure in the project area. It was derived using finite element inversion methodology described in Wannamaker et al, in the attached FORGE Phase3 Geophysics paper, from the MT observation EDI files. It is ASCII format (.dat) and entries are defined at top of the file in a simple x-y-z-Rho listing in UTM coordinates. The element layers drape the topography so the Rho value layers are not purely horizontal slices. This greatly simplifies the listing.

Citation Formats

Energy and Geoscience Institute at the University of Utah. (2020). Utah FORGE: Phase 3 Magnetotelluric (MT) Data [data set]. Retrieved from https://dx.doi.org/10.15121/1776598.
Export Citation to RIS
Wannamaker, Phil, Maris, Virginia. Utah FORGE: Phase 3 Magnetotelluric (MT) Data. United States: N.p., 01 Oct, 2020. Web. doi: 10.15121/1776598.
Wannamaker, Phil, Maris, Virginia. Utah FORGE: Phase 3 Magnetotelluric (MT) Data. United States. https://dx.doi.org/10.15121/1776598
Wannamaker, Phil, Maris, Virginia. 2020. "Utah FORGE: Phase 3 Magnetotelluric (MT) Data". United States. https://dx.doi.org/10.15121/1776598. https://gdr.openei.org/submissions/1255.
@div{oedi_1255, title = {Utah FORGE: Phase 3 Magnetotelluric (MT) Data}, author = {Wannamaker, Phil, Maris, Virginia.}, abstractNote = {New high-quality tensor MT data at 122 sites, including the vertical magnetic field and utilizing ultra-remote referencing, have been acquired over the Utah FORGE project area. The results will be used to delineate the densities of faults and fractures in crystalline basement rocks, to define the heat sources, and to derive baseline 3D resistivity structure for later MT monitoring of temporal changes in resistivity structure following well stimulation in the EGS reservoir.

There are three files here related to Utah FORGE magnetotelluric (MT) data acquisition and processing. The FORGE MT EDIs zip file contains the observed MT responses in industry-standard EDI format. For each site, there is an EDI response file that utilized a local independent reference for noise cancellation, and a file that utilized a distant reference cancelling noise associated with the DC transmission line of the Delta IPP passing down the west side of Milford Valley. These two site files could be merged as appropriate.

The FORGE Model Cell Center file contains the model volume of the 3D Forge MT inversion for characterizing the resistivity structure in the project area. It was derived using finite element inversion methodology described in Wannamaker et al, in the attached FORGE Phase3 Geophysics paper, from the MT observation EDI files. It is ASCII format (.dat) and entries are defined at top of the file in a simple x-y-z-Rho listing in UTM coordinates. The element layers drape the topography so the Rho value layers are not purely horizontal slices. This greatly simplifies the listing.}, doi = {10.15121/1776598}, url = {https://gdr.openei.org/submissions/1255}, journal = {}, number = , volume = , place = {United States}, year = {2020}, month = {10}}
https://dx.doi.org/10.15121/1776598

Details

Data from Oct 1, 2020

Last updated Feb 21, 2022

Submitted Oct 7, 2020

Organization

Energy and Geoscience Institute at the University of Utah

Contact

Phil Wannamaker

801.581.3547

Authors

Phil Wannamaker

Energy and Geoscience Institute at the University of Utah

Virginia Maris

Energy and Geoscience Institute at the University of Utah

DOE Project Details

Project Name Utah FORGE

Project Lead Lauren Boyd

Project Number EE0007080

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