26.4 Flashcards
metamorphic rock is changed by a combination of which 3 things?
heat pressure and chemical reaction
what types of rocks can be changed by metamorphism?
igneus,sedmintary,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 shale is compressed, which type of metamorphic rock is created?
slate
what are the two types of metamorphic rock texture?
foliated
non-foliated
define foliated texture
crystals that are arranged in layers and bands
define non-foliated texture
crystals with more random orientations
metamorphic rocks mainly classified based on which two things?
texture
compision
define rock cycle
continual changing of rocks from one type to another
which types of rocks are part of the rock cycle?
sedimentary, igneous, metamorphic rocks
what are the 3 types of rocks?
igneous
sedimentary
metamorphic
what type of rocks form from molten rock?
igneous rocks
what types of rocks are formed from clasts precipitation or compressed once living matter?
sedimentary rocks
which types of rocks are formed from heat, pressure, and chemical reactions?
metamorphic
