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Flashcards in Geology Deck (18):
0

How old is the earth?

4.54 billion years

1

How did the earth form?

The earth formed from surrounding elements.

2

What are the 4 main Layers of the Earth?

Inner Core,Outer Core,Mantle and Crust.

3

Formula for Density

D=M/V
Volume divided by Mass equals Density

4

What Igneous Rock?

The most common type of rock. Either comes out of the volcano extrusive or intrusive.


5

Intrusive igneous?

A type of intrusive rock that cools inside a volcano.

6

Extrusive igneous rock?

A type if igneous rock that cools fast.
Out side of e volcano.

7

Whats a metamorphic rock?

Metamorphic rock is formed when heat and pressure expose a on a rock.

8

Burial Metamorphic rock?

burial of existing rocks by other rocks or sediments.
Its a low grade metamorphism because of low heat and pressure

9

Contact metamorphic?

Contact metamorphic occurs when magma intrudes into the crust and cools.

10

What's Regional Metamorphic?

When two tectonic plates hit each other and creates a mountain.

11

What's sedimentary rock?

Sedimentary rock is formed when particles of other rocks are Burrid and harden over time.

12

What can igneous change into?

Sedimentary or metamorphic

13

What can metamorphic change into

Sedimentary or mantle

14

What can sedimentary change into?

Metamorphic or mantle.

15

What's fossilization?

Its a process when organic matter changes into a rock material

16

Whats a mold fossil?

Its when soft or hard tissue decays

17

Can plants become fossilized?

Yes the sediments replace the plants cellular chemicals