Mark Harris

 (414) 229-5483
 Lapham Hall 244



PhD, Johns Hopkins University
MS, University of Wisconsin-Madison

Research Interests

My research projects focus on the sedimentology and sequence stratigraphy of carbonate rocks. My most recent projects are collaborative studies with Peter Sheehan (Milwaukee Public Museum) of Upper Ordovician-Lower Silurian facies, sequences and communities of the Great Basin and Estonia. We are currently developing a project to look at the sedimentological and paleontological changes in the east Baltic Middle Ordovician-Lower Silurian section as Baltica moved from sub-polar to tropic settings. This interval is of particular interest because it includes the Great Ordovician Radiation, the end Ordovician extinctions, and the Early Silurian recovery. Peter and I are working with Leo Ainsaar (Tartu University), Linda Hints, Olle Hints, Jaak Nõlvak (Institute of Geology, Tallinn Technical University), Andri Dronov (Moscow State University), and Seth Finnegan (University of California) on this project. Last summer, Seth and I traveled to Estonia to meet with our colleagues to examine outcrops and cores to understand the basic stratigraphy and facies relations (and plan our grant submission).

Teaching Areas

Sedimentology, History of Geology

Selected Publications

Rubel, M., Nestor, V., Harris, M. T., Sheehan, P., Anisaar, L., Hints, L., Männik, P., & Nõlvak, J. (2006). A high-resolution chitinozoan composite for East Baltic Lower Silurian based on numerical analysis. Geological Quarterly, 50, 323-332.
Harris, M. T., Sheehan, P. M., Anisaar, L., Hints, L., Männik, P., Nõlvak, J., & Rubel, M. (2004). Upper Ordovician sequences of western Estonia. Palaeogeography, Palaeoclimatology, and Palaeoecology, 210, 135-148.
Sheehan, P. M., & Harris, M. T. (2004). Microbiolite resurgence after the Late Ordovician extinction. Nature, 430, 75-78.
Pope, M., & Harris, M. T. (2004). New insights into Late Ordovician climate, oceanography and tectonics. Palaeogeography, Palaeoclimatology, and Palaeoecology, 210, 117-118.
Harris, M. T. (2002). Developing geoscience student-learning centered courses. Journal of Geoscience Education, 50(5), 515-523.
Harris, M. T. (2001). Strategies for implementing pedagogical changes by fault at a research university. Journal of Geoscience Education, 49(1), 50-55.
Harris, M. T., Lehrmann, D. J., & Lambert, L. L. (2000). Comparison of the depositional environments and physical stratigraphy of the Cutoff Formation (Guadalupe Mountains) and the Road Canyon Formation (Glass Mountains); lowermost Guadalupian (Permian) of West Texas. Wardlaw, B. R., Grant, R. E., & Rohr, D. (Eds.). Smithsonian Contributions to the Earth Sciences, 32, 127-152.
Lambert, L. L., Lehrmann, D. J., & Harris, M. T. (2000). Correlation of the Road Canyon and Cutoff formations, West Texas, and its relevance to establishing an international Middle Permian (Guadalupian) series. Wardlaw, B. R., Grant, R. E., & Rohr, D. (Eds.). Smithsonian Contributions to the Earth Sciences, 32, 153-183.