Maine Geological Survey
Photo 5: Breccia of angular fragments of dark gray fine grained gabbro surrounded by light gray granite in the layered gabbro-diorite unit (Slg). Breccia formed from a thin layer of crystallized gabbro that was disrupted by later injections of gabbro and granite.
Project Name: Bedrock Geology Bartlett Island
Broad Creation Date
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.
bedrock mapping; outcrop
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