Title
Preview
Contributing Institution
Maine Geological Survey
Document Type
Image
Identifier
69764
Description
Photo 4: Close-up view of porphyritic gabbroic rocks (DSfp) exposed in a small mafic intrusion within the Bucksport Formation (Sb). Porphyritic refers to an igneous texture where larger minerals, in this case black hornblende, are contained within a finer grained matrix. Here the matrix is finer grained hornblende and light gray plagioclase feldspar. The age of this particular intrusion of mafic magma is unknown. Lower Fitch Point, Damariscotta River, South Bristol.
Project Name: STATEMAP Bristol Bedrock24k
Exact Creation Date
8-25-2021
Location
South Bristol
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