An Analysis of an Appalachian Metamorphic Suite
Presentation Type
Oral and/or Visual Presentation
Presenter Major(s)
Geology
Mentor Information
Ginny Peterson
Department
Geology
Location
Kirkhof Center 2216
Start Date
11-4-2012 2:00 PM
Keywords
Physical Science
Abstract
Mineral textures and compositions for sillimanite-garnet-biotite bearing samples collected from an exposure of the Chunky Gal Mountain (CGM) Fault in the Jake Ridge outcrop provide constraints on the deformation history and conditions of deformation. Rocks from this location were previously documented as amphibolite-facies (520°C-725°C, 4-6 kbar). However, the assemblages from CGM are similar to those of Winding Stair Gap (WSG) which are granulite-facies (850°C, 8kbar). This may indicate that CGM retains evidence of metamorphic conditions higher than amphibolite-facies. Microscopy is used to determine the deformation texture of the fault rocks. Mineral chemistry will be used to constrain pressures and temperatures of metamorphism. Results should help to further constrain the complex tectonic history of the area.
An Analysis of an Appalachian Metamorphic Suite
Kirkhof Center 2216
Mineral textures and compositions for sillimanite-garnet-biotite bearing samples collected from an exposure of the Chunky Gal Mountain (CGM) Fault in the Jake Ridge outcrop provide constraints on the deformation history and conditions of deformation. Rocks from this location were previously documented as amphibolite-facies (520°C-725°C, 4-6 kbar). However, the assemblages from CGM are similar to those of Winding Stair Gap (WSG) which are granulite-facies (850°C, 8kbar). This may indicate that CGM retains evidence of metamorphic conditions higher than amphibolite-facies. Microscopy is used to determine the deformation texture of the fault rocks. Mineral chemistry will be used to constrain pressures and temperatures of metamorphism. Results should help to further constrain the complex tectonic history of the area.