The Rock And Fossil Record

Front 1

Uniformitarianism

Back 1

A principle that states the earths change is gradual and has happened the same way throughout history:created by James Hutton. "The present is the key to the past"

Front 2

Catostrophsim

Back 2

A principle that states that all geologic change on the earth occured because of a sudden event such as : a metorite or astroid, an earthquake, a volcanic eruption (rare sudden events)

Front 3

Extra Info of Faults & Intrusions

Back 3

Both are always younger than the layers that cut across because layers had to exist before the features could cut through them

Front 4

Uniformitarianism vs. Catastrophsim

Back 4

Catastrophism-Sudden and earth was only a few thousand years old
Uniforitarianism- Gradual change, earth was millinons older

Front 5

Fault

Back 5

A break in the Earth's crust along which blocks of the crust slide relative to one another

Front 6

Geologic Column

Back 6

The ideal sequence of rock layers tat contains all known fossils and rock formation on Earth arranged from oldest to youngest
Created: By geologist piecing together different rock sequences from all over the world

Front 7

Uniforitarianism Wins!

Back 7

Charels Lyell published 3 volumes of collection called: Principles of Geology- reintroduced uniformitarianism
Had losts of notes and successfully challenged catostrophism

Front 8

Intrusion

Back 8

Molten rock fro the Earth's interior that squeezes into existing rock and cools

Front 9

Relative Dating

Back 9

Determining weather an object or event is older or yonger than another object or event

Front 10

Princple of Superposition

Back 10

Princple that states younger rock lies above older rock in undisturbed sequences " Younger over older"