Washington Geothermal Play Fairway Analysis Data From Potential Field Studies


A recent study which adapts play fairway analysis (PFA) methodology to assess geothermal potential was conducted at three locations (Mount Baker, Mount St. Helens seismic zone, and Wind River valley) along the Washington Cascade Range (Forson et al. 2017). Potential field (gravity and magnetic) methods which can detect subsurface contrasts in physical properties, provides a means for mapping and modeling subsurface geology and structure. As part of the WA-Cascade PFA project, we performed potential field studies by collecting high-resolution gravity and ground-magnetic data, and rock property measurements to (1) identify and constrain fault geometries (2) constrain subsurface lithologic distribution (3) study fault interactions (4) identify areas favorable to hydrothermal flow, and ultimately (5) guide future geothermal exploration at each location.

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Additional Info

DOE Project Name: Geothermal Play-Fairway Analysis of Washington State Prospects
DOE Project Number: EE0006728
DOE Project Lead: Eric Hass
DOI: 10.15121/1452729
Last Updated: over a year ago
Data from December, 2017
Submitted Dec 27, 2017


Washington Geological Survey



Publicly accessible License 


Megan Anderson
Colorado College
Brent Ritzinger
U.S. Geological Survey
Jonathan Glen
U.S. Geological Survey
William Schermerhorn
U.S. Geological Survey


geothermal, energy, gravity, magnetics, potential fields, play fairway, washington, land use, process water, transmission, urban areas, water, shapefile, ArcGIS, geospatial data, GIS, site assessment, site characterization, geophysics, geophysical, survey, exploration, investigation, pfa, washington state


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