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Contributing Institution
Maine Geological Survey
Document Type
Image
Identifier
70125
Description
Photo 5: Close-up view of sillimanite-rich mica schist of the pelitic schist member of the Casco Bay Group (Ocbs). Sillimanite, an aluminum-rich silicate mineral, is the purplish fibrous mineral in this rock and its presence indicates both a high aluminum content in the rocks and high temperatures of metamorphism. Schistose rocks within this unit are generally darker colored and contain more aluminous minerals (sillimanite, andalusite, garnet) than schistose rocks in the Cape Elizabeth Formation (Oce). Northwest side of Tottman Cove, Phippsburg.
Project Name: STATEMAP Phippsburg Bedrock24k
Exact Creation Date
4-18-2022
Location
Phippsburg
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