PSU Presents Geologic History of N.H.’s Presidential Range Feb. 23

February 16th, 2007 by Adam

The breathtaking beauty of New Hampshire’s Presidential Range has long captured the public’s imagination. Plymouth State University will present a wide-ranging presentation about the geology of the iconic mountain range Feb. 23, as part of the Environmental Science Colloquium Series.

Dykstra Eusden, professor of Geology at Bates College, will present ‘Bedrock Geology of New Hampshire’s Presidential Range,’ Friday, Feb. 23, from 2:30 – 3:30 p.m. in Boyd Science Center, Room 001. The talk is free and open to the public.

For the last 15 years, extensive field work and mapping has been underway to better understand the story of plate collisions in the Paleozoic Era to form the ancient Appalachian Mountains. The results of this work have been compiled in a new bedrock geologic map of New Hampshire’s Presidential Range, to be published this spring by the New Hampshire Geological Survey under the auspices of NH State Geologist, David Wunsch. This talk will feature the map, cross sections and description of the 400 million year old bedrock and tectonic history of the Acadian Orogeny which includes the stratigraphic, deformational, metamorphic and plutonic events that have shaped the Granite State’s most famous mountain range.

Dykstra Eusden, or Dyk for short, lives in South Paris, Maine and spends most of his time doing fieldwork as a geologist. He is a professor of geology at Bates College and enjoys teaching a variety of field-based courses; his two favorite being “Geology of the Maine Coast by Sea Kayak” and “Katahdin to Acadia: Exploring Maine Geology”. He loves maps, map making and explaining to people the stories that rocks and landscapes can tell. In an effort to stay within a 50 mile radius of most of New Hampshire and Maine’s finest natural attributes, he went to Bates for his B.S., then University of New Hampshire for his M.S. and finally Dartmouth College for his Ph.D., all in geology.

For more information, visit or contact Bruce Lyndes, PSU Media Relations Mgr., (603)535-2775 or