Paleozoic Formations in Southern Arizona

(Simplified)

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Formation Name

Map Symbol

Age
Rain Valley

Pr

Late Permian
Concha Limestone

Pcn

Permian
Epitaph Dolomite

Pe

Permian
Colina

Pc

Permian
Earp

Pennsylvanian/Permian
Horquilla Limestone

Pennsylvanian
Escabrosa Limestone

Me

Missisppian
Martin Limestone

Dm

Devonian
Abrigo Limestone

Mid to Late Cambrian
Bolsa Quartzite

Mid to Late Cambrian
Fossils from gravels and other unknown formations

Paleozoic

Sources:


Stratigraphic Section Near Bisbee Arizona
The Southern Arizona Guidebook III available from the Arizona Geological Survey
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