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Lab Test #3
GEO 1501
8
Geology
Undergraduate 1
04/04/2013

Additional Geology Flashcards

 


 

Cards

Term
4 Eons
Definition

Hadean 4.6B-3.8B

 

Archean 3.8B-2.5B

 

Proterozoic 2.5B-542M

 

Phanerozoic 542M-Present

Term
3 Eras
Definition

Paleozoic 542M-248M

 

Mesozoic 248M-65M

 

Cenozoic 65M-Present

Term
Period
Definition
Quaternary 1.8M-Present
Term
Epochs
Definition

Pleistocene 1.8M-.011yrs

 

Holocene .001yrs-Present

Term

We live in what:

Eon

Era

Period

Epoch

Definition

Eon: Phanerozoic

 

Era: Cenozoic

 

Period: Quaternary

 

Epoch: Holocene

Term
Earth is how old?
Definition
4.6 B
Term
Unconformity
Definition
erosional surface
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