Christoph Geiss is a geophysicist interested in the magnetic properties of natural materials. He is currently studying soils and lake sediments from the mid-western United States. At Trinity College Christoph is teaching courses in the Physics department and the Environmental Science program.

Peer Reviewed Publications

• Machac, T.A., Zanner C.W. , and Geiss, C.E. "Time dependent IRM acquisition as a tool to quantify the abundance of ultra-fine superparamagnetic magnetite in loessic soils.", Geophysical Journal International, 167, p. 483-489, 2007
• Geiss, C.E. and Zanner C. W. "How abundant is pedogenic magnetite? Abundance and grain-size estimates for loessic soils based on rock-magnetic analyses.", Journal of Geophysical Research, 111, B12S21, doi:10.1029/2006JB004564, 2006
• Geiss, C. E., and Zanner, C. W. "Sediment magnetic signature of climate in modern loessic soils from the Great Plains.", Quaternary International, doi: 10.1016/j.quaint.2006.10.035, 2006
  
• Guyodo, Y., T.M. LaPara, A.J. Anschutz, R.L. Penn, S.K. Banerjee, C.E. Geiss, and C.W. Zanner. "Rock Magnetic, Chemical and Bacterial Community Analysis of a Modern Soil From Nebraska." Earth and Planetary Science Letters 251, (2006):168-178.
• Umbanhowar, C.E. Jr., Camill, P., Geiss, C.E., Teed, R. "Asymmetric vegetation responses to mid-Holocene aridity at the prairie–forest ecotone in south-central Minnesota." Quaternary Research 66, (2006): 53-66.
• Geiss, C. E., Zanner, C. W., Banerjee, S. K., and Minott, J. "Signature of magnetic enhancement
  in a loessic soil in Nebraska." Earth Planet. Sci. Lett. 228, (2004): 355-367.
• Geiss, C. E., Banerjee, S. K., Camill, P., and Umbanhowar, C. E. "Sediment-magnetic Signature
  of Land-use and Drought as Recorded in Lake Sediment from South-Central Minnesota,
  U.S.A." Quaternary Research 62, (2004): 117-125.
• Camill, P., C.E. Umbanhowar Jr., R. Teed., C.E. Geiss, L. Dvorak, J. Kenning, K. Walkup and J.
  Aldinger. "Late Glacial and Holocene Climatic Effects on Fire and Vegetation Dynamics
  at the Prairie-Forest Ecotone in South-Central Minnesota." J. Ecology 91, (2003): 822-836.
• Geiss, C.E., S.K. Banerjee. A .Holocene. "Late Pleistocene Geomagnetic Inclination Record from
  Grandfather Lake, SW Alaska." Geophys. J. Int.153,(2003): 497- 507.
• Geiss, C.E., C.E. Umbanhowar, P. Camill & S.K. Banerjee. "Sediment magnetic properties reveal
  Holocene climate change along the Minnesota prairie-forest ecotone." J. Paleolimn 30, (2003):
  151-166.

• Trinity College Trustee Award for Faculty Excellence, 2020
• Trinity College, Arthur H. Hughes Award for Teaching Achievement, 2007
• University of Minnesota, Visiting Scientist at Institute for Rock Magnetism (travel stipend and free use of laboratory), 2006
• Several research grants from Trinity College to support faculty research and undergraduate research assistants, 2005-2007
• University of Minnesota, Visiting Scientist at Institute for Rock Magnetism, 2004
• Lawrence Livermore National Laboratories, grant for 20 radiocarbon analyses per year, 2004-2006
• Trinity College, support for two faculty research assistants, 2004 - 2005
• National Science Foundation EAR-MRI, Acquisition of equipment for rock-magnetism laboratory upgrade, 2003 - 2004