U.S. Geological Survey home - www.usgs.gov

U.S. Geological Survey Open-File Report 03-221
A Pictorial Survey of the Bedrock Beneath Western Cape Cod, Massachusetts


Thin Section of 95MW0107

Photomicrograph of Granite

Altered plagioclase phenocryst partially recrystallized as fine-grained, unaltered plagioclase in granite. Note later matrix muscovite wrapping non-recrystallized grain.

Altered plagioclase phenocryst partially recrystallized as fine-grained, unaltered plagioclase in granite (95MW0107). Note later matrix muscovite wrapping non-recrystallized grain.  Click here for a zip file with full resolution image.

kfs: K-feldspar
ms: muscovite
pl: plagioclase

Close Window


Skip footerOFR03-221 Home | Introduction | Bedrock Photographs | GIS Data Catalog


skip footer
[an error occurred while processing this directive]