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Contributing Institution
Maine Geological Survey
Document Type
Image
Identifier
70463
Description
Figure 15. Characteristic Oosm rock types. (A) Agglomerate with exotic felsic volcanic fragments in basaltic matrix; (B) Agglomerate with endogenous (black) and exotic (gray) fragments in chloritized greenstone matrix. (C) Photomicrograph (O) of greenstone showing pyroxene phenocrysts in fine-grained chlorite-rich matrix. (D) Photomicrograph (X) of lava or subvolcanic intrusive showing skeletal, saussuritized feldspar phenocrysts in chloritized matrix.
Project Name: Bedrock Geology 24k Greenfield
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; Greenfield quadrangle