Geology - Chapter 6 - Metamorphic
Rocks Exam 100% Accurate!!
Foliation - ANSWERS* Planes of minerals formed in response to stress * A feature of many metamorphic
rocks * crystals rearrange into layered planes depending on the type and orientation of the stress during
metamorphism
Foliation planes are recognized by: - ANSWERS* The preferred orientation of minerals * alternating
bands of different minerals * the flattening and stretching of minerals * foliation forms by physical
rotation of preexisting minerals
Non-foliated rocks are named primarily according to - ANSWERScomposition - minerals present
Foliated rocks are divided primarily according to: - ANSWERSTexture - Grain size
The Primary textural attributes of meta rocks - ANSWERS* Presence or absence of - {foliation} - {mineral
grain size}
Useful criteria for classifying meta rocks - ANSWERS* {Composition} * {Texture}
What does observed variations in the mineral content and texture of meta rocks reveal? - ANSWERS*
The temperature and pressure of metamorphism * The composition of parent rocks and reactive fluids
Parent rock for: Slate - ANSWERS{shale} * {tuff}
Parent rock for: Marble - ANSWERS{Limestone} * {Dolostone}
Parent rock for: Gneiss - ANSWERS{Shale} * {Igneous rocks}
Rocks Exam 100% Accurate!!
Foliation - ANSWERS* Planes of minerals formed in response to stress * A feature of many metamorphic
rocks * crystals rearrange into layered planes depending on the type and orientation of the stress during
metamorphism
Foliation planes are recognized by: - ANSWERS* The preferred orientation of minerals * alternating
bands of different minerals * the flattening and stretching of minerals * foliation forms by physical
rotation of preexisting minerals
Non-foliated rocks are named primarily according to - ANSWERScomposition - minerals present
Foliated rocks are divided primarily according to: - ANSWERSTexture - Grain size
The Primary textural attributes of meta rocks - ANSWERS* Presence or absence of - {foliation} - {mineral
grain size}
Useful criteria for classifying meta rocks - ANSWERS* {Composition} * {Texture}
What does observed variations in the mineral content and texture of meta rocks reveal? - ANSWERS*
The temperature and pressure of metamorphism * The composition of parent rocks and reactive fluids
Parent rock for: Slate - ANSWERS{shale} * {tuff}
Parent rock for: Marble - ANSWERS{Limestone} * {Dolostone}
Parent rock for: Gneiss - ANSWERS{Shale} * {Igneous rocks}
