Montserrat geothermal system: A 3D conceptual model

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Abstract

We constructed a three-dimensional conceptual model of a geothermal system on the Caribbean island of Montserrat. The model was generated using magnetotelluric resistivity data, earthquake hypocenter data, and a three-dimensional P wave velocity model, all plotted using a shared geographical reference. The results of the study suggest a high-temperature fracture-controlled geothermal system at the intersection of two faults in the SW of the island. We also present a "prospectivity index" map that represents a proxy of the spatial variation in harvestable heat flux at 1500 m depth. The index is the product of relative permeability around modeled faults and a proxy for the subsurface temperature calculated using P wave velocity anomalies. © 2013 American Geophysical Union. All Rights Reserved.

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Ryan, G. A., Peacock, J. R., Shalev, E., & Rugis, J. (2013). Montserrat geothermal system: A 3D conceptual model. Geophysical Research Letters, 40(10), 2038–2043. https://doi.org/10.1002/grl.50489

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