2015_CTP_#6: Garnet Gneiss

Title: 2015_CTP_#6: Garnet Gneiss
Description: CPT_#6 has poorly developed schistosity as exhibited in the hand sample with minerals such as biotite dispersed in discernible groups. These bands may be a product of metamorphic differentiation in which biotite clusters in high shear regions. T There are alternating felsic and darker mineral layers compositionally containing garnet, biotite, alkali feldspar, and quartz. The inclusion of garnet further suggests that this is a highly metamorphosed gneiss as opposed to a low grade metamorphic rock with relict igneous banding. The protolith may have been of ingeous origin.
Creator: Kevin Jackson
Mediator: Tamara Carley

Media: https://exhibits.lafayette.edu/omeka/files/original/ea0eb43e6f44bc93b57f847aa8e8e9d0.jpg; https://exhibits.lafayette.edu/omeka/files/original/b69b5cc8f9c976d9e9839b884b38dd90.jpg; https://exhibits.lafayette.edu/omeka/files/original/ad77d43b6b6fbfc8abf83fc83685b7a1.jpeg; https://exhibits.lafayette.edu/omeka/files/original/8c9e0556fa7409a7e00eb4e52f8ed336.jpeg; https://exhibits.lafayette.edu/omeka/files/original/fe4f25a424e9632f005c5acb1419b67f.jpeg; https://exhibits.lafayette.edu/omeka/files/original/c57c8124f30858d275bd57fe1af0d979.jpeg; https://exhibits.lafayette.edu/omeka/files/original/ead20c5363d83aef2d81ffe12de73121.jpeg; https://exhibits.lafayette.edu/omeka/files/original/ca2c06b4a72c4f1f54af2f6f385d9485.jpeg