Igneous Rocks
This is liquid rocks or minerals.
These are pieces of rock.
What are sediments?
These types of rocks can become metamorphic rocks.
What are sedimentary, igneous, and most metamorphic rocks?
Type of rock that can have fossils.
What is sedimentary rock?
These are the remains or traces of ancient life.
What are fossils?
This is how igneous rocks form.
What is cooling / freezing / solidification / crystallization?
These are the processes of breaking and moving rocks.
What are weathering and erosion?
These two things are required to make a metamorphic rock.
What are heat and pressure?
Type of rock that can have large crystals.
What is a intrusive igneous rock?
This is one type of fossil formation.
What are unaltered fossils?
(stuck in amber or tar pit, frozen, mummified)
What are altered fossils?
(permineralization, carbonization, replacement via cast/mold)
This makes igneous rocks on earth's surface.
What is a volcano?
These processes create sedimentary rocks.
What is cementation and compaction (lithification)?
This can happen if a metamorphic rock undergoes too much heat and pressure.
What is melting?
(Metamorphic rock melts into magma, then can cool and harden into igneous rock.)
Type of rock that can have foliation or mineral banding.
What is metamorphic rock?
These help match the age of rock layers in different places.
What are index fossils?
This type of rock forms when magma cools slowly under ground.
What is intrusive (plutonic) igneous rock?
This rock was made from plants that died a long time ago.
What is coal?
This type of metamorphism happens with lots of pressure.
What is regional metamorphism?
Type of rock that can have vesicles.
What is extrusive (volcanic) igneous rock?
This is the key idea of the Law of Superposition.
Younger rocks are found above older rocks.
Superposition = above position
This type of rock forms when lava cools quickly above ground.
What is extrusive (volcanic) igneous rock?
These are two types of sedimentary rocks.
What are clastic, bioclastic/organic and/or crystalline sedimentary rocks? (need two out of three)
This type of metamorphism happens because of intrusions of igneous rocks.
What is contact metamorphism?
This specific rock has rounded fragments with different grain sizes.
What is a conglomerate sedimentary rock?
This percent of parent atoms are left after two half lives.
What is 25%?
1 half life - 50% parent atoms, 50% daughter atoms
2 half lives - 25% parent atoms, 75% daughter atoms