St. Helena hotspot
Volcanic hotspot in the Atlantic Ocean
The St. Helena hotspot is a volcanic hotspot located in the southern Atlantic Ocean. It is responsible for the island of St. Helena and the St. Helena Seamount chain. It is one of the oldest known hotspots on Earth, which began to produce basaltic lava about 145 million years ago.[1]
References
- ^ Mantle plumes and their record in earth history
16°S 6°W / 16°S 6°W / -16; -6
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Hotspots
- Balleny
- Erebus
- Kerguelen
- Canary
- New England
- Réunion
- Shona
- Sierra Leone
- St. Helena
- Tristan
Proposed mechanisms: Mantle plume · Plate theory
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