Igneous Rocks
Extrusive Rocks
Sedimentary rocks that are made up of broken pieces of mineral and rock fragments
Clastic
Any process that affects the structure or composition of a rock.
Metamorphism
Examples include: granite, diorite, gabbro
Igneous Rocks
to uncover or subject
expose
Created when lava cools too quickly to crystallize
Volcanic Glass
The process of weight forcing fluids and decreasing space between grains.
Compaction
The permanent change in shape by bending and folding.
Plastic deformation
Obsidian is a type of
volcanic glass
to push in
intrusive
Created by magma forming under the Earth's surface
Intrusvie Rocks
When minerals dissolved in water crystallize between sediment grains.
Cementation
contains parallel layers of flat and elongated minerals.
Foliated rocks
examples include conglomerate and breccia
sedimentary rocks
broken pieces and fragments
clasts
Molten rock below the Earth's Surface
Magma
Formed when minerals crystallize directly from water
Chemical rocks
Metamorphic rocks that have mineral grains with random, interlocking texture
nonfoliated rocks
Examples include slate, gneiss, schist, and phyllite
metamorphic rocks
consisting of then, leaf-like layers
foliate
Molten rock that erupts on the Earth's surface
Lava
Formed by organisms or contains the remains of organisms
Biochemical rocks
caused by magma coming into contact with existing rock and forming new metamorphic rock due to thermal energy and gasses interacting with the surrounding rock.
Contact metamorphism
Stone mountain in Georgia is made of _______ rocks that formed underground and are now exposed
Igneous rocks
the formation of metamorphic rock bodies that are hundreds of square kilometers in size
regional metamorphism