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GSC Board of Directors

2026 GSC
Board of Directors
Nick Hastings
President
Phil Resor 
Past President 
Christoph Geiss
Vice President
Melissa Mostoway
Secretary

Peter Drzweiecki
Treasurer

Directors:
Jean Crespi
Ralph Lewis
Shawn Poff
Mike Ross
Meghan Seremet
Janet Stone



Peter Drzewiecki is a sedimentologist/stratigrapher and a professor at Eastern Connecticut State University with a BS degree from the University of Notre Dame (1989) and MS and PhD degrees from the University of Wisconsin-Madison (1992, 1996). He was employed by ExxonMobil’s Research Lab from 1996 through 2002, when he left to become a professor at Eastern Connecticut State University. At Eastern, he has earned an Excellence in Service Award (2010), Eastern Teaching Award (2012), CSU Teaching Award (2012), and ECSU Distinguished Faculty Award (2017). His research includes understanding continental depositional systems of the Hartford Basin, especially around Dinosaur State Park, and investigating the halokinetic and tectonic controls on Cretaceous carbonate platform evolution in NE Spain.

In addition to chairing the Academic Advising, Sabbatical Leave, and First-Year Program committees at Eastern and directing its Honors Program, Peter has served as Secretary of the Limnogeology Division of the Geological Society of America from 2007-2012. He led field trip for the New England Intercollegiate Geological Confer-

erence and Geological Society of America in 2012, 2015 and 2021. He has been a leader in the town of Mansfield’s Boy Scout Troop since 2011, including serving as Scoutmaster for the past 5 years.


Christoph Geiss is a Professor of Physics and Environmental Science at Trinity College and has served as Trinity’s Environmental Science Program Director for the past 9 years. Christoph earned a Master’s degree (Diplom) in Geophysics from the Ludwig Maximilians Universität  in Munich, Germany, before he came to the United States where he completed his PhD in Geophysics at the University of Minnesota. After a short postdoc stint, he arrived at Trinity in 2001. Christoph is a rock magnetist who uses the magnetic properties of soils, sediments, and rocks to reconstruct past environments. His research projects, which all involve undergraduate students, focus on the use of paleosols as paleoclimate proxies, the reconstruction of Arctic environments using lake sediments, and most recently, the effects of natural and prescribed fires on the soils along the forest-prairie boundary in western Iowa. At Trinity he turned into a jack-of-all-trades, teaching everything from introductory geology and environmental science courses to advanced classes in soil science, climate change and geophysics as well as calculus-based physics for engineers and aspiring medical doctors.