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Contributing Institution
Maine Geological Survey
Document Type
Image
Identifier
9699
Description
Photo 6: Asymmetric granite boudins are common in the sheared Passagassawakeag migmatite (DOpgs). The grain size of the two boudins shown here is different. The upper boudin has a better preserved igneous texture and the lower boudin is finer-grained suggesting shear-induced grain size reduction during deformation. The paleosome layer (P) above the boudins is an equigranular assemblage of quartz, plagioclase, and biotite. Approximately 2,300 feet southwest of Toddy Pond Road along the powerlines, Swanville.
Project Name: Bedrock Geology Brooks East
Exact Creation Date
6-16-2016
Location
Swanville
Supplemental Rights
Credit must be given to the photographer and the Maine Geological Survey when this photo is displayed, reproduced, distributed and/or used in derivative works.
Keywords
bedrock mapping; outcrop; STATEMAP