Smackover Formation


The Smackover Formation is a geologic formation in Arkansas. It preserves fossils dating back to the Jurassic period.
The Smackover Formation consists of oolitic limestones and silty limestones.

Mineral resources

The Smackover Formation has been a prolific source of petroleum. The 1922 discovery of the Smackover oil field, after which the Smackover Formation is named, resulted in a sizeable oil boom in southern Arkansas.
In addition to being a petroleum reservoir, as of 2015, the brine from the Smackover Formation is the only source of commercial bromine in the United States.