George Holmes University Professor Profile Image
George Holmes University Professor Earth and Atmospheric Sciences 302 Bessey Hall

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My interests lie at the interface of geological, ecological, and atmospheric sciences and focus specifically on the interaction of lakes with the atmosphere and the land surface, both in contemporary times and during the Quaternary. I specialize in the application of diatom analysis to questions of environmental change, although my current projects complement diatom-based reconstructions with geochemical and geomorphic approaches. My research also combines studies of lacustrine stratigraphic records with descriptive and experimental studies of modern lakes as models for interpretation of fossil sequences. My current research projects focus on long-term hydrologic variability in tropical South America and in the Great Plains and Rocky Mountain regions of North America.

Selected Publications

  • Fritz, S. C., 2007, Salinity and climate reconstruction from diatoms in continental lake deposits, in Encyclopedia of Quaternary Science (edited by S. Elias, ed.), Elsevier, Oxford.
  • Fritz, S.C., P.A. Baker, G.O. Seltzer, A. Ballantyne, P. Tapia, H. Cheng, R.L. Edwards, 2007, Quaternary glaciation and hydrologic variation in the South American tropics as reconstructed from the Lake Titicaca drilling project, Quaternary Research, 68, 410-420.
  • Jacobs, K.C, S.C. Fritz, J.B. Swinehart, 2007, Lacustrine evidence for moisture changes in the Nebraska Sand Hills during Marine Isotope Stage 3, Quaternary Research, 67, 246-254.
  • Stone, J.R. and S.C. Fritz, 2006, Multi-decadal drought frequency and Holocene drought instability in the northern Rocky Mountains, Geology, 34, 409-412.
  • Fritz, S.C., P.A. Baker, T. Lowenstein, G.O. Seltzer, C.A. Rigsby, G. Dwyer, P. Tapia, K. Arnold, T-H Ku, S. Luo, 2004, Hydrologic variation during the last 170,000 years in the southern hemisphere tropics of South America, Quaternary Research, 61, 95-104.
  • Fritz, S.C., S. Juggins and D.R. Engstrom, 2004, Patterns of early lake evolution in boreal landscapes: a comparison of stratigraphic inferences with a modern chronosequence in Glacier Bay, Alaska, The Holocene, 14, 828-840.