Education & Certifications


  • PhD, Rice University, Geology (2024)
  • MS, Colorado State University, Geology (2019)
  • BS, University of Nevada - Las Vegas, Geology (2017)

All Publications


  • Effects of Dilatant Hardening on Fault Stabilization and Structural Development GEOPHYSICAL RESEARCH LETTERS Williams, S. A., French, M. E. 2024; 51 (10)
  • Sinistral shear during Middle Jurassic emplacement of the Matancilla Plutonic Complex in northern Chile (25.4° S) as evidence of oblique plate convergence during the early Andean orogeny JOURNAL OF SOUTH AMERICAN EARTH SCIENCES Mavor, S. P., Singleton, J. S., Heuser, G., Gomila, R., Seymour, N. M., Williams, S., Arancibia, G. 2022; 120
  • Magnitude, timing, and rate of slip along the Atacama fault system, northern Chile: implications for Early Cretaceous slip partitioning and plate convergence JOURNAL OF THE GEOLOGICAL SOCIETY Seymour, N. M., Singleton, J. S., Gomila, R., Mavor, S. P., Heuser, G., Arancibia, G., Williams, S., Stockli, D. F. 2021
  • The early Palaeogene transition from thin-skinned to thick-skinned shortening in the Potosi uplift, Sierra Madre Oriental, northeastern Mexico INTERNATIONAL GEOLOGY REVIEW Williams, S. A., Singleton, J. S., Prior, M. G., Mavor, S. P., Cross, G. E., Stockli, D. F. 2021; 63 (2): 233-263
  • Timing, Kinematics, and Displacement of the Taltal Fault System, Northern Chile: Implications for the Cretaceous Tectonic Evolution of the Andean Margin TECTONICS Mavor, S. P., Singleton, J. S., Gomila, R., Heuser, G., Seymour, N. M., Williams, S. A., Arancibia, G., Johnston, S. M., Kylander-Clark, A. C., Stockli, D. F. 2020; 39 (2)
  • Laramide shortening and the influence of Precambrian basement on uplift of the Black Hills, South Dakota and Wyoming, U.S.A Rocky Mountain Geology Singleton, J. S., Mavor, S. P., Seymour, N. M., Williams, S. A., Patton, A. I., Ruthven, R. C., Johnson, E. P., Prior, M. G. 2019; 54 (1): 1-17