Preview
Contributing Institution
Maine Geological Survey
Document Type
Image
Identifier
70122
Description
Photo 2: A close-up view of pegmatite (CDp) showing the minerals alkali feldspar (Afs), quartz (Qz), tourmaline (Tur), and muscovite (Ms). Pegmatite is a very coarse grained variety of granite and is ubiquitous in the quadrangle, occurring primarily as meter- to sub-meter-wide tabular dikes and sills in surrounding metamorphic rocks. Pegmatites have been the subject of mineral resource investigations (Cameron and others, 1954) and were the target of small-scale feldspar mining in the past as evidenced by numerous small, abandoned prospect pits scattered throughout the quadrangle (Rand and others, 1957). Off Quarry Road, Georgetown.
Project Name: STATEMAP Phippsburg Bedrock24k
Exact Creation Date
4-18-2022
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