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Geology

Honors Theses

Theses/Dissertations

2014

Dynamic recrystallization

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Deformation Mechanisms In Mylonites At Fletcher Peak, Washington County, Me, Ariana S. Boyd Jan 2014

Deformation Mechanisms In Mylonites At Fletcher Peak, Washington County, Me, Ariana S. Boyd

Honors Theses

Mylonite formation and development is dependent on a number of factors including temperature, strain rate, and fluid fugacity. All three factors affect flow stress and viscosity; thus, a variance in each will affect the development of mylonites. This study focuses on factors leading to the formation of mylonite surrounded by ultramylonite of the same protolith, along-strike to one another at the center of a fault zone. The rocks in question are from the Deblois granite cut by the Kellyland fault zone, a ductile strike-slip fault zone within the larger Norumbega fault system in eastern Maine. The Deblois granite as a …