I joined the USGS GEC Science Center in Denver, Colorado in 2017. I am interested in the role magmatic processes play in driving plate tectonics, building mountains, forming of volcanic belts and their associated geologic hazards, and forming hydrothermal ore deposits.
I am working on the Geologic Framework of the Intermountain West Project investigating the ignimbrites and post-caldera intrusions of the Platoro caldera complex and how they relate to the San Juan magma reservoir, Rio Grande extension-related magmatism, and ore deposition in the region.
Before joining the USGS, my research focused on the primary magmatic features and petrogenesis of the Don Manuel igneous complex and associated porphyry copper system in the Andean Cordillera of central Chile. I also worked for the Virginia Division of Geology and Mineral Resources conducting mineral resource assessments and geologic mapping in the Virginia Blue Ridge, Piedmont, and Coastal Plain.
Science and Products
Science and Products
Pre-USGS PublicationsGilmer, A.K., Sparks, R.S.J., Rust, A.C., Tapster, Simon, Webb, A.D., and Barfod, D.N., Geology of the Don Manuel igneous complex, central Chile: Implications for igneous processes in porphyry copper systems:GSA Bulletin, 129 (7-8): 920–946.Blundy, J., Mavrogenes, J., Tattitch, B., Sparks, S., and Gilmer, A. 2015, Generation of porphyry copper deposits by gas-brine reaction in volcanic arcs: Nature Geoscience, 8, 235-240.Pratt, T.L., Horton, J.W., Spears, D.B., Gilmer, A.K., and McNamara, D.E., 2014, The 2011 Virginia Mw 5.8 earthquake: Insights from seismic reflection imaging into the influence of older structures on eastern US seismicity: Geological Society of America Special Papers, 509, SPE509-16.Shah, A.K., Horton, J.W., Burton, W.C., Spears, D.B., and Gilmer, A.K., 2014, Subsurface geologic features of the 2011 central Virginia earthquakes revealed by airborne geophysics: Geological Society of America Special Papers, 509, SPE509-17.Gilmer, A.K., Kyle, J.R., Connelly, J.N., and Mathur, R.D., and Henry, CD., 2003, Extension of Laramide magmatism in southwestern North America into Trans-Pecos Texas: Geology, v. 31, no. 5, p. 447-450.