26.4 Flashcards
Metamorphic rock is changed by a combination of which 3 things?
heat, pressure, or chemical reactions
Which types of rocks can be changed by metamorphism?
igneous, sedimentary, or metamorphic rocks
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 areas?
contact metamorphism
When 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
have crystals that are arranged in layers and bands
Define nonfoliated texture
have crystals with more random orientations
Metamorphic rocks are mainly classified based on which two things?
composition and texture
Define Rock Cycle
continual change of rocks from one type to another
Which types of rocks are part of the rock cycle?
All rock type
What are the 3 types of rocks?
Igneous, sedimentary, and metamorphic
Which type of rocks form from molten rock?
igneous
Which types of rock are formed from clasts, precipitation, or compressed once living matter?
sedimentary
Which types of rocks are formed from heat, pressure, and chemical reactions?
metamorphic