Geology of Bermuda
The geology of tholeiitic lavas and lamprophyre sheets dated to 33 million years ago. The oceanic crust around the island is about 120 million years old. Volcaniclastic turbidite deposits 140 kilometers offshore to the southeast indicate that Bermuda volcanoes were exposed above the water and eroding by the Oligocene. The volcano that built the island's basement is inferred to be mid-plate hotspot volcanism, and was formed when a disturbance in the transition zone led magma from the zone toward Earth's surface.[1][2][3] Eolian limestone and hills dominates much of the surface geology of Bermuda, interbedded with layers of paleosols.[4]
References
- ^ Bermuda Was Made by Unexpected Geological Layer Deep in Earth's Mantle
- ^ Andrews, Robin George. "The volcano that built Bermuda is unlike any other on Earth". National Geographic. Archived from the original on March 3, 2021.
- ^ Mazza, S.E. (2019). "Sampling the volatile-rich transition zone beneath Bermuda". Nature. 569: 398–403.
- ISBN 9780080554662.