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The separation of Madagascar and Africa
journal contribution
posted on 2023-05-17, 08:50 authored by Rabinowitz, PD, Mike CoffinMike Coffin, Falvey, DIdentification of a sequence of east-west trending magnetic anomalies of Mesozoic age in the western Somali Basin helps define the position of Madagascar in the Gondwana reconstruction. The anomalies are symmetric about ancient ridge segments and are flanked to the north and south by the Jurassic magnetic quiet zone. The motion of Madagascar relative to Africa was from the north and began in the middle Jurassic, about the same time as the initial breakup of Gondwanaland. Sea-floor spreading ceased when Madagascar assumed its present position in the Early Cretaceous.
History
Publication title
ScienceVolume
220Issue
4592Pagination
67-69ISSN
0036-8075Department/School
Institute for Marine and Antarctic StudiesPublisher
Amer Assoc Advancement SciencePlace of publication
1200 New York Ave, Nw, Washington, USA, Dc, 20005Rights statement
Copyright © 1983 The American Association for the Advancement of ScienceRepository Status
- Restricted