2008 Appalachian Tectonic Studies Group Field Trip
Active Tectonics, Erosion, and Appalachian Landscape Evolution of
the lower Susquehanna River basin
Frank J. Pazzaglia, Lehigh University
The 2008 ATSG field trip was held in the lower Susquehanna River basin from North East, MD to Harrisburg, PA on May 10 and 11 , 2008. We covered familiar ATSG territory, but with a major thematic twist. We visited the lower Susquehanna River basin and learned of Cenozoic rock uplift, river incision, active tectonics, and the geodynamics of the 'passive margin'. The story is mature with roots dating back to early in the century but has several more recent publications. New data continue to reshape our thinking. Among the more intriguing possibilities that we discussed are the geodynamic implications of far-field strains (if any) stemming from the Chesapeake Bay impact structure.
A website containing other information regarding this trip can be found by clicking here.
Thanks for attending and I look forward to seeing you on future ATSG trips.
Frank J. Pazzaglia
GSA Field Guide
Pazzaglia, F. J., Braun, D. D., Pavich, M., Bierman, P., Potter, N., Merritts, D., Walter, R., and Germanoski, D., 2006, Rivers, glaciers, landscape evolution, and active tectonics of the central Appalachians, Pennsylvania and Maryland, in Pazzaglia, F. J., ed., Excursions in Geology and History: Field Trips in the Middle Atlantic States: Geological Society of America Field Guide 8, p. 169-197, doi: 10.1130/2006.fld008(09). PDF
Pazzaglia, F. J., 1993, Stratigraphy, petrography, and correlation of late Cenozoic middle Atlantic Coastal Plain deposits: Implications for late-stage passive margin geologic evolution, Geol. Soc. of Am. Bull., v.105, p.1617-1634. PDF
Pazzaglia, F. J. and Gardner, T. W.,
Fluvial terraces of the lower
Pazzaglia, F. J. and Gardner, T. W., 1994, Late Cenozoic flexural deformation of the middle U.S. Atlantic passive margin: Journal of Geophysical Research, v. 99, n. B6, p. 12,143-12,157. PDF
Pazzaglia, F. J. and Brandon, M. T.,
Macrogeomorphic evolution of the post-Triassic
Pazzaglia, F. J., Robinson, R., and Traverse, A., 1997, Palynology of the Bryn Mawr Formation (Miocene): Insights on the age and genesis of middle Atlantic margin fluvial deposits: Sedimentary Geology, v. 108, p. 19-44. PDF
Rev. 2008 May 15