Flashcards in Geology Deck (18):
How old is the earth?
4.54 billion years
How did the earth form?
The earth formed from surrounding elements.
What are the 4 main Layers of the Earth?
Inner Core,Outer Core,Mantle and Crust.
Formula for Density
Volume divided by Mass equals Density
What Igneous Rock?
The most common type of rock. Either comes out of the volcano extrusive or intrusive.
A type of intrusive rock that cools inside a volcano.
Extrusive igneous rock?
A type if igneous rock that cools fast.
Out side of e volcano.
Whats a metamorphic rock?
Metamorphic rock is formed when heat and pressure expose a on a rock.
Burial Metamorphic rock?
burial of existing rocks by other rocks or sediments.
Its a low grade metamorphism because of low heat and pressure
Contact metamorphic occurs when magma intrudes into the crust and cools.
What's Regional Metamorphic?
When two tectonic plates hit each other and creates a mountain.
What's sedimentary rock?
Sedimentary rock is formed when particles of other rocks are Burrid and harden over time.
What can igneous change into?
Sedimentary or metamorphic
What can metamorphic change into
Sedimentary or mantle
What can sedimentary change into?
Metamorphic or mantle.
Its a process when organic matter changes into a rock material
Whats a mold fossil?
Its when soft or hard tissue decays