School of Earth, Environment and Society
Dr. Charles M. Onasch
Education & Experience:
Ph.D., Pennsylvania State University, University Park, PA (1974-77)
Specialty Areas of Interest:
Structural geology, role of fluids in low-temperature rock deformation, grain-scale deformation of quartz-rich rocks, strain in foreland thrust belts, recurrent cratonic deformation, shallow geophysics, digital mapping, visualization in the geosciences
Current BGSU Courses:
Introduction to Geology, Earth Structure and Tectonics - Undergrad
Recent and Current Research or Grants:
Role of fluids in low-temperature deformation of quartz-rich rocks
Recent Peer Reviewed Publications and Submissions:
Gorsevski, P.V., Onasch, C.M., Farver, J.R., Ye, X., (accepted). Detecting grain boundaries in deformed rocks using a cellular automata approach. Computers & Geosciences
Onasch, C.M., Dunne, W., Cook, J., O’Kane, A., 2009, The effect of fluid composition on the behavior of well cemented, quartz-rich sandstone during faulting, Journal of Structural Geology, 31, 960-971.
Li, L., Onasch, C., Guo, Y., 2008, GIS-based detection of grain boundaries, Journal of Structural Geology 30, 431-443.
O’Kane, A., Onasch, C.M., Farver, J., 2007. The Role of Fluids in Low-temperature, Fault-related Deformation of Quartz Arenite. Journal of Structural Geology 29, 819- 826.
Cook, J., Dunne, W.M., and Onasch, C.M., 2006, Development of a dilatant damage zone along a thrust relay in a low-porosity quartz arenite, Journal of Structural Geology 28, 776-792.
Ferrill, D.A., Burkhard, Martin, Evans, Mark A., Groshong, Richard H., Jr., Morris, Alan P., Onasch, C. M., 2004, Calcite Twin Morphology: A Low-Temperature Deformation Geothermometer, Journal of Structural Geology 26, 1521-1529.
Harrison, M.A., and Onasch, C.M., 2000, Quantitative assessment of low temperature deformation mechanisms in a folded quartz arenite, Valley and Ridge province, West Virginia. Tectonophysics 317, 73-91.