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Timing of hot spot-related volcanism and the breakup of Madagascar and India

Storey, M., Mahoney, J.J., Saunders, A.D., Duncan, R.A., Kelley, S.P. and Coffin, M.F (1995) Timing of hot spot-related volcanism and the breakup of Madagascar and India Science, 267, (5199), pp. 852-855. (doi:10.1126/science.267.5199.852).

Record type: Article


Widespread basalts and rhyolites were erupted in Madagascar during the Late Cretaceous. These are considered to be related to the Marion hot spot and the breakup of Madagascar and Greater India. Seventeen argon-40/argon-39 age determinations reveal that volcanic rocks and dikes from the 1500-kilometer-long rifted eastern margin of Madagascar were emplaced rapidly (mean age = 87.6 ± 0.6 million years ago) and that the entire duration of Cretaceous volcanism on the island was no more than 6 million years. The evidence suggests that the thick lava pile at Volcan de l'Androy in the south of the island marks the focal point of the Marion hot spot at 88 million years ago and that this mantle plume was instrumental in causing continental breakup.

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Published date: 10 February 1995
Additional Information: Actually deposited by Jane Conquer


Local EPrints ID: 52426
ISSN: 0036-8075
PURE UUID: 95eb26bb-4ab2-48b2-bbef-5fa81a7e5b3b

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Date deposited: 26 Jun 2008
Last modified: 17 Jul 2017 14:40

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Author: M. Storey
Author: J.J. Mahoney
Author: A.D. Saunders
Author: R.A. Duncan
Author: S.P. Kelley
Author: M.F Coffin

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