Chipola Formation
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| Chipola Formation | |
|---|---|
| Stratigraphic range: Late Oligocene-Early Miocene | |
 Fossils from the Chipola Formation | |
| Type | Geological formation |
| Unit of | Alum Bluff Group |
| Underlies | Shoal River Formation |
| Lithology | |
| Primary | dolomite, phosphate, clay, sand |
| Location | |
| Region | Florida Panhandle |
| Country | United States |
| Type section | |
| Named for | Chipola River |
The Chipola Formation is a Late Oligocene to Early Miocene geologic formation in the Florida Panhandle and member of the Alum Bluff Group.
Period: Neogene
Epoch: Early Miocene to Middle Miocene
Faunal stage: Aqitanian ~18.9 to 18.3 mya, calculates to a period of 0.6 million years
Location
The Chipola Formation is found along the Chipola River.
Lithography
The Chipola Formation is composed of clays, sands and shell beds. These vary from fossil bearing sandy clays to sands, clays, and carbonate beds absent of fossil content with glauconite and phosphate mica which is common. The coloration is from cream to olive gray with mottled reddish brown in the weathered sections. The sands are soft and very fine to coarse with sporadic gravel while carbonate lenses are quite hard. Permeability of the sediments are generally low and are part of the intermediate confining unit/aquifer system.[1]
