Preview
Contributing Institution
Maine Geological Survey
Document Type
Image
Identifier
72155
Description
Photo 4: Garnet-sillimanite-biotite gneiss, one of several rock types within the Sangerville Formation (Ss). The white layers in the rock are rich in quartz and feldspar, whereas the darker layers are rich in biotite, light gray sillimanite (a high temperature metamorphic index mineral), and abundant reddish-brown garnet. Off Taylor Hill Road, Lewiston.
Project Name: STATEMAP Lake Auburn East Bedrock24k
Exact Creation Date
7-14-2022
Location
Lewiston
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; Lake Auburn East