Education & Experience:

Ph.D., Pennsylvania State University, 1977
M.S., University of Massachusetts, 1974
B.A., Franklin & Marshall College, 1971
Director, School of Earth, Environment and Society; 2007-present
Chair, Department of Geology; 2000-2007
Professor; 1992-present
Associate Professor; 1986-92

Specialty Areas of Interest:

Role of fluids in rock deformation
Strain and deformation mechanisms in quartz arenites in foreland thrust belts
Recurrent tectonics in the craton
Paleoseismicity in the midcontinent
Shallow Geophysics

Current BGSU Courses:

GEOL 100 - Introduction to Geology - Ugrad
GEOL 309 - Structural Geology and Tectonics - Ugrad
GEOL 609 - Structural Geology - Grad
GEOL 615 - Engineering Geology - Grad
GEOL 620 - Environmental Geophysics- Grad

Continuing Education or Service Activities:

Digital Mapping, Geological Society of America short course
Teaching Structural Geology in the 21^st Century, NSF-Kaleidoscope project
Appalachian Tectonic Studies Group, officer

Recent and Current Research or Grants:

The role of water in the low temperature deformation of quartz, NSF
Digital Field Mapping using Pocket PC Computers, NSF
Empowering Student learning in the geologic sciences with three dimensional interactive animation and low cost Virtual Reality, NSF

Recent Peer Reviewed Publications and Submissions:

Onasch, C.M., Dunne, W.M., Cook, J., O’Kane, A., The effect of fluid composition on well cemented quartz-rich sandstones during faulting.  Submitted to Journal of Structural Geology.

Li, Y., Onasch, C.M., Guo, Y., GIS-based detection of grain boundaries.  Accepted, Journal of Structural Geology.

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.

Harrison , M.J., Marshak, S. and Onasch, C.M., 2004. Stratigraphic control of hot fluids on anthracitization, Lackawanna synclinorium, Pennsylvania. Tectonophysics 378, 85-103.

Ferrill, David A, Morris, Alan P., Evans, Mark A., Burkhard, Martin, Groshong Jr, Richard H., Onasch, Charles M., 2004. Calcite twin morphology: a low-temperature deformation geothermometer, Journal of Structural Geology 44, 1521-1529.

Onasch, C.M., Kahle, C.F., 2002. Seismically-induced soft sediment deformation in some Silurian Carbonates, eastern midcontinent. Geological Society of America Special Paper 359.

Harrison, M.A., 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.