Mesozoic paleomagnetic anomalies south of Ceylon |
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| Authors: | Al A Schreider A A Schreider |
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| Institution: | 1.OOO NIIgazekonomika,Moscow,Russia;2.Shirshov Institute of Oceanology,Russian Academy of Sciences,Moscow,Russia |
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| Abstract: | Ceylon was one of the connecting continental links in the ensemble of the united Indian and Antarctic continents when Gondwana
split up. However, the precise position of Ceylon is still undetermined. Some publications attribute its position to different
regions near Enderby Land. The analysis of the linear magnetic anomalies in the Central Basin of the Indian Ocean south of
Ceylon and near the Antarctic coast (the Cosmonaut Sea and the Riiser-Larsen Sea) yielded evidence for the position of Ceylon
in the ensemble of the Indian and Antarctic continents: it was east of Gunnerus Ridge in the Cosmonaut Sea. The breaking away
of Ceylon from Antarctica occurred in the period of chron M11r (136.44–136.90 Ma). Before breaking away, the eastern flank
of the Gunnerus Ridge was joined to Ceylon and they formed a united continental block. |
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