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

Thin Section of 95MW0208

Photomicrograph of Mylonite

$Undulatory quartz showing partial recrystallization and extensive subgrain development in mylonite. Sphene grain is extensively fractured and embayed. Muscovite occurs as a fine crystal mesh.$

Undulatory quartz showing partial recrystallization and extensive subgrain development in mylonite (95MW0208). Sphene grain is extensively fractured and embayed. Muscovite occurs as a fine crystal mesh. Click here for a zip file with full resolution image.

ms: muscovite
qtz: quartz
sph: sphene

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