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GSM Summer Field Trip July 25-27, 2008
Mount Desert Island, Maine
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Summer Field Trip and Meeting, Friday July 25 to Sunday July 27, 2008 to Mt. Desert Island and environs. Some highlights of the GSM field trip will include the scenic view from Cadillac Mountain, a stop to see active processes at Sand Beach and a modern boulder beach with a sea stack, a Pleistocene sea cave, and a truly world-class outcrop of the 'shatter zone' contact of the Bar Harbor Formation and igneous units of the Cadillac Mountain pluton. The shatter zone consists of gabbroic and granitic bodies and angular blocks of intensely shattered as well partially melted and deformed fragments of country rock, part of a magma chamber that cooled at a relatively shallow depth in the earth's crust. A stop at the Maine Granite Industry Historical Society is planned for the afternoon, with a demonstration of granite cutting and a trip to a nearby historic quarry (the Hall Quarry) on Sommes Sound. Sunday we are arranging for a visit to an active granite quarry in Sullivan, where we will be treated to a demonstration of granite quarrying using foot wedges and a 28 lb hammer. For an overview of the geology meeting trip participants should read Maine Geological Survey Bulletin 38, The Geology of Mount Desert Island, by Gilman and others (1988). http://www.maine.gov/doc/nrimc/mgs/explore/bedrock/acadia/contents.htm
RSVP to mmixon@acadiaenvironmental.com with RSVP-GSM as the subject. Saturday's trip is via chartered school bus with room for 30. Lodging will be in the bunkhouse at the Schoodic Education and Research Center (arrival after 5 pm on Friday). There will be a small charge per night ($15) for lodging. Saturday evening meal will be provided by GSM. Other information will be forthcoming by email. Make sure GSM has your contact information.
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