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Contributing Institution
Maine Geological Survey
Document Type
Image
Identifier
70112
Description
Photo 6: Close-up view of strongly foliated rocks of the Lincoln Syenite (DSlsf). These highly distinctive rocks originally crystallized from an alkali-rich magma of intermediate silica concentration about 418 million years ago and were subsequently strongly deformed and partially recrystallized during the Middle to Late Devonian Acadian orogeny. The rocks are characterized by large purplish-gray alkali feldspar crystals set in a finer grained matrix rich in biotite, actinolite (an amphibole group mineral), and lighter colored feldspar. Townsend Ledge Drive, Boothbay Harbor.
Project Name: STATEMAP Boothbay Harbor Bedrock24k
Exact Creation Date
10-5-2021
Location
Boothbay Harbor
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