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Tuesday, April 24 • 12:00pm - 1:30pm
Mineralogical Study Of Biotite In Metapelites From Mount Mitchell State Park, North Carolina, United States Of America

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The purpose of this research project is to analyze rock samples from Mount Mitchell, North Carolina and determine the chemistry of biotite minerals within, specifically for titanium content. A previous study at Mount Mitchell by Coburn (2016) has shown that a few samples collected from this study contained biotite with and without titanium in the same rock. This gives us two different compositions of biotite coexisting within a rock, suggesting two different crystallization events. The samples will be analyzed at UNCA utilizing the methods of Energy Dispersive Spectroscopy (EDS) on the Scanning Electron Microscope (SEM) as well as observing optical properties through the Polarized Light Microscope (PLM). After being analyzed at UNCA, the most optimal samples will be shipped to Spectrum Petrographics to be prepared as thin sections. Much of the current information about the geology in this region is outdated and by completing this research project a better understanding of the geology at Mount Mitchell will be achieved. Acquiring the precise chemical composition data of the biotite found in these rocks aids in constraining the temperature and pressure range for the metamorphism of the rocks and the formation of the biotite. This information will allow the geologic history of Mount Mitchell to be placed in context with surrounding geology and related studies.


Tuesday April 24, 2018 12:00pm - 1:30pm PDT
Sherrill Center Concourse

Attendees (2)