GEOL107 Study Guide - Midterm Guide: Mica, Hornblende, Schist

• School: University of Delaware
• Department: Geology
• Course: GEOL107
• Professor: Dr.Madsen

Document Summary

Passage of fluids are either foliated or nonfoliated. Metamorphic origin is from physical and/or chemical change of pre-existing rocks by. Metamorphic rocks are subdivided (named) based on their texture and composition. Major texture of metamorphic rocks is foliation - in terms of texture metamorphic rocks. Foliation is when minerals in rock are arranged in layers parallel to each other. Oliation created when rocks exposed to directed pressures (pressures that are not equal. Four major types of metamorphic rocks that have foliated texture, the difference between in all directions) the rocks are thickness of foliation layers (or bands) magnification. Foliation created when rocks exposed to directed pressures (pressures that are not. Four major types of metamorphic rocks that have foliated texture, the difference between equal in all directions) the rocks are thickness of foliation layers (or bands) magnification. Phyllite - thickness of foliation layers greater than slate, but still not visible without.