Category:Geologic formations in the United States by geochronology by state

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Geologic time scale

Subcategories

This category has the following 34 subcategories, out of 34 total.

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Geologic formations in the United States by state by geochronology‎ (50 C)

A

Archean formations in the United States by state‎ (6 C)

C

Cambrian formations in the United States by state‎ (39 C)
Carboniferous formations in the United States by state‎ (36 C)
Cenozoic formations in the United States by state‎ (41 C)
Cretaceous formations in the United States by state‎ (42 C)

D

Devonian formations in the United States by state‎ (37 C)

E

Eocene formations in the United States by state‎ (17 C)

H

Holocene formations in the United States by state‎ (13 C)

J

Jurassic formations in the United States by state‎ (31 C)

M

Mesoarchean formations in the United States by state‎ (1 C)
Mesoproterozoic formations in the United States by state‎ (16 C)
Mesozoic formations in the United States by state‎ (48 C)
Miocene formations in the United States by state‎ (20 C)
Mississippian formations in the United States by state‎ (21 C)

N

Neoarchean formations in the United States by state‎ (4 C)
Neogene formations in the United States by state‎ (32 C)
Neoproterozoic formations in the United States by state‎ (15 C)

O

Oligocene formations in the United States by state‎ (19 C)
Ordovician formations in the United States by state‎ (36 C)

Q

Quaternary formations in the United States by state‎ (30 C)

S

Silurian formations in the United States by state‎ (31 C)

T

Triassic formations in the United States by state‎ (27 C)

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