Drew Siler is a Research Geologist at the Geology, Minerals, Energy, and Geophysics Science Center. He received a B.S. in Earth and Space Science from University of Washington in 2005 and a Ph.D. in Geology from Syracuse University in 2011. Presently, his research focuses on understanding the role of fault systems as conduits for geothermal circulation.
Dr. Drew Siler has devoted his career to structural geology and tectonics and specializes in Geothermal Systems.
His past research focused on magmatic rifts, mid-ocean ridges, and ophiolite complexes, applying geologic mapping and structural analysis in order to characterize volcanic construction and tectonic deformation processes in magmatic rifts and mid-ocean ridge systems.
Drew's current research is focused characterizing geologic systems in 3-dimensions. This includes geologic mapping and working with a wide variety of data sets including drill cuttings and core, subsurface temperature data, seismic reflection data, potential-field geophysical data, diffuse degassing measurements along faults, helium isotope data, 3D geologic mapping, structural analyses, and machine learning. His research applies these tools and techniques to evaluate permeability distribution in fault systems in 3D and characterizing the geologic controls of fluid flow in geothermal systems.
2020-Present, Research Geologist, Geology, Minerals, Energy, and Geophysics Science Center, U.S. Geological Survey, Moffett Field, CA
2016-Present, Research Affiliate, Lawrence Berkeley National Laboratory, Berkeley, CA
2016-2020, Research Geologist and Mendenhall Fellow, Geology, Minerals, Energy, and Geophysics Science Center, U.S. Geological Survey, Menlo Park, CA
2013-2016, Post-Doctoral Fellow, Lawrence Berkeley National Laboratory, Berkeley, CA
2011-2013, Post-Doctoral Fellow, Nevada Bureau of Mines and Geology, University of Nevada, Reno
2011 Post Doctoral Fellow, Syracuse University, Syracuse, NY
Education and Certifications
Ph.D., Geology, Syracuse University, 2011
B.Sc., Earth and Space Sciences, University of Washington, 2005
Affiliations and Memberships
2011-Present, Geothermal Resources Council
2006-Present, American Geophysical Union
2006-Present, Geological Society of America
Lawrence Berkeley National Lab
National Renewable Energy Lab
Los Alamos National Lab
Utah State University
Colorado School of Mines
University of Nevada, Reno
Boise State University
Nevada Bureau of Mines and Geology
Sandia National Lab
U.S. Navy Geothermal Program Office
Itasca Consulting Group
Science and Products
Witter, J.B., Siler, D.L., Faulds, J.E., and Hinz, N.H. 3D geophysical inversion modeling of gravity data to test the 3D geologic model of the Bradys geothermal area, Nevada, USA.
Science and Products
Pre-USGS PublicationsSiler, D.L., and Karson, J.A., 2017. Along-Axis Structure and Crustal Construction Processes of Spreading Segments in Iceland: Implications for Magamatic Rifts. Tectonics.Siler, D.L., Yingqi Zhang, Nicolas F. Spycher, Patrick F. Dobson, James S. McClain, Erika Gasperikova Robert A. Zierenberg, Peter Schiffman, Colin Ferguson, Andrew Fowler, Carolyn Cantwell, 2017. Play-fairway analysis for geothermal resources and exploration risk in the Modoc Plateau region, Geothermics. 69, 15-33.Siler, D.L., and Kennedy, B.M., 2016. Regional crustal-scale structures as conduits for deep geothermal upflow, Geothermics, 59A, 27-37.
Witter, J.B., Siler, D.L., Faulds, J.E., and Hinz, N.H. 3D geophysical inversion modeling of gravity data to test the 3D geologic model of the Bradys geothermal area, Nevada, USA.Witter, J.B., Siler, D.L., Faulds, J.E., and Hinz, N.H. 3D geophysical inversion modeling of gravity data to test the 3D geologic model of the Bradys geothermal area, Nevada, USA.Siler, D.L., Faulds, J.E. Mayhew, B., and McNamara, D., 2016. Analysis of the favorability for geothermal fluid flow in 3D: Astor Pass geothermal prospect, Great Basin, northwestern Nevada, USA, Geothermics, 60, 1-12.Siler, D.L., and J.A. Karson, 2012. Sub-volcanic subsidence and caldera formation during sub aerial seafloor spreading in Iceland, Geological Society of America Bulletin, v. 124, no. 7-8, p. 1310-1323.Siler, D.L., and J.A. Karson, 2009. Three-dimensional structure of inclined sheet swarms: Implications for crustal thickening and subsidence in the volcanic rift zones of Iceland, Journal of Volcanology and Geothermal Research, 188, 333–346