In Exercises 2132, express each rational number as a decimal 5 6
Preferred Mineral Orientation *How does preferred mineral orientation develop *Pressure solutionoccurs in wet rocks at low T. *Minerals dissolve at compressed faces *Minerals grow where compression is less *Grains become shorter, parallel to compression. *Plastic deformation occurs at higher T. *Existing grains flatten by deforming internally *Shear Rotation and Flattening *Shear flattens grains in a manner similar to compression *Shear rotates grains into alignment Kinds of Metamorphic Foliation *Slaty Cleavage *Low Grade: alignment of clay minerals *Schistosity: *Mediumhigh grade: alignment of large micas *Compositional bonding(Gneissic bonding) *High grade: light bands of felsic minerals and dark bands o
