Ch. 26 pt two Flashcards
Metamorphic rock is changed by a combination of which three things?
heat, pressure, and chemical reactions
Which types of rocks can be changed by metamorphism?
igneous, sedimentary and metamorphic
What is it called when metamorphic changes in rocks occur over large areas?
regional metamorphism
What is it called when metamorphic changes in rocks occur over small changes?
contact metamorphism
When is shale is compressed, which type of metamorphic rock is created?
slate
What are the two types of metamorphic rock textures?
foliated and nonfoliated
Define foliated texture
crystals arranged in layers and bands
Define nonfoliated texture
crystals with more random orientations
Metamorphic rocks are mainly classified based on which two things?
texture and composition
Define Rock Cycle
the continual changing of rocks from one form to another
What type of rocks are part of the rock cycle?
sedimentary, igneous, and metamorphic
What are three types of rocks?
sedimentary, igneous, and metamorphic
Which type of rocks form from molten rock?
igneous
What types of rocks are formed from clasts, precipitation, or compressed once living matter?
sedimentary
Which type of rocks are formed from heat, pressure, and chemical reactions?
metamorphic