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Timing of Hot Spot—Related Volcanism and the Breakup of Madagascar and India
Open accessAbstract
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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Cited by
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Metadata
- Authors
- Storey, M., Mahoney, J. J., Saunders, A. D., Duncan, R. A., Kelley, S. P., & Coffin, M. F.
- Venue
- Science
- Published
- 1995-02-10
- Volume
- 267
- Issue
- 5199
- Pages
- 852-855
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2063580659
- Cited by
- 664
- References
- 0
- FWCI
- 13.73
- Type
- journal article
- Language
- en
- Open access
- green
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- Storey, M., Mahoney, J. J., Saunders, A. D., Duncan, R. A., Kelley, S. P., & Coffin, M. F. (1995). Timing of Hot Spot—Related Volcanism and the Breakup of Madagascar and India. Science. https://doi.org/10.1126/science.267.5199.852
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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