The separation of Madagascar and Africa
The separation of Madagascar and Africa
Identification 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.
67-69
Rabinowitz, P.D.
a32f54c4-eca1-44e5-88e4-ecd85cc6cf1a
Coffin, M. F.
23df5327-98a0-4ca0-9119-e57cb80163a0
Falvey, D.A.
ca56de43-6856-4ff6-9c59-161b92df251d
1 April 1983
Rabinowitz, P.D.
a32f54c4-eca1-44e5-88e4-ecd85cc6cf1a
Coffin, M. F.
23df5327-98a0-4ca0-9119-e57cb80163a0
Falvey, D.A.
ca56de43-6856-4ff6-9c59-161b92df251d
Abstract
Identification 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.
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Published date: 1 April 1983
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Local EPrints ID: 50539
URI: http://eprints.soton.ac.uk/id/eprint/50539
ISSN: 0036-8075
PURE UUID: 32fa7cf4-15d1-4ec6-a4d4-4f75732624c7
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Date deposited: 06 Mar 2008
Last modified: 15 Mar 2024 10:06
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Author:
P.D. Rabinowitz
Author:
M. F. Coffin
Author:
D.A. Falvey
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