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Contributing Institution
Maine Geological Survey
Document Type
Image
Identifier
70132
Description
Photo 12: Close-up view of the amphibolite member of the Cape Elizabeth Formation (Ocea). The rock is composed primarily of dark-colored hornblende (an amphibole group mineral), and lesser amounts of light-colored plagioclase feldspar. The greenish-gray layer in the center of the photo is rich in calc-silicate minerals (diopside and calcic plagioclase feldspar). These rocks are interpreted to represent metamorphosed mafic igneous rocks that were emplaced (erupted?) within the Cape Elizabeth Formation, otherwise dominated by meta-sedimentary rock. Indian Point, Georgetown.
Project Name: STATEMAP Phippsburg Bedrock24k
Exact Creation Date
4-14-2022
Location
Georgetown
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