|Elevation||2,900 ft (880 m)below Jackson|
|Age of rock||66,000,000 years|
Jackson Volcano is an extinct volcano located 2900 feet (884 meters) beneath the city of Jackson, Mississippi, under the Mississippi Coliseum. The uplifted terrain around the volcano forms the Jackson Dome, an area of dense rock clearly noticeable in local gravity measurements.
Jackson Volcano is believed to have been extinct for at least 66 million years. A hypothesis states that the Jackson Volcano and related igneous activity in Mississippi were a result of the North America Plate's passage over the Bermuda hotspot 66 million years ago. Alternatively, the volcanism may have been part of a worldwide eruption driven by superplumes, similar to the conditions that created the Deccan Traps and the Siberian Traps.
The volcano is one of four located inside cities in the United States, Diamond Head in Honolulu, Hawaii, Pilot Butte in Bend, Oregon, and Mount Tabor in Portland, Oregon being the others. The volcano was discovered in 1819.
- Dockery III, David T.; John C. Marble; Jack Henderson (1997). "The Jackson Volcano" (PDF). Mississippi Geology (Jackson, Mississippi: Mississippi Department of Environmental Quality) 18 (3): 33–45.
- Mississippi Department of Environmental Quality: Frequently Asked Questions
- Vogt, Peter R.; Woo-Yeol Jung (2007). "Origin of the Bermuda volcanoes and the Bermuda Rise: History, observations, models, and puzzles" (PDF). Special Paper 430: Plates, Plumes and Planetary Processes (Geological Society of America) 430: pp. 553–591. doi:10.1130/2007.2430(27).
- Mississippi, University of (2003-12-12). "The Geology of Mississippi" (PDF). University of Mississippi. Retrieved 2007-09-27.