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Astrid Ridge, extending from 65°S to the
Antarctic margin and located between 9°E and 17°E, forms the eastern border of the Lazarev Sea and the western border of the Riiser-Larsen Sea. It is divided into two parts by the Astrid Fracture Zone: south of 67°S Astrid Ridge stretches N-S while the
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have been found and this area is therefore interpreted as stretched continental crust and Astrid Ridge as a former continental margin created by volcanism during the break-up.
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Leinweber, V. T.; Jokat, W. (2012). "The
Jurassic history of the Africa–Antarctica corridor—new constraints from magnetic data on the conjugate continental margins".
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The geological evolution of the Astrid Ridge remains enigmatic. The Riiser-Larsen Sea is a conjugate basin to the
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began to form in the Riiser-Larsen Sea. West of Astrid Ridge, however, neither oceanic crust nor
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The ocean along the continental margin of
Dronning Maud Land, the
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seas, are dominated by three topographic features: Astrid Ridge,
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northern part follows the SW—NE direction of the fracture zone.
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Jokat, W.; Boebel, T.; König, M.; Meyer, U. (2003).
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124:5th edition charts. The name was approved by the
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200: This article incorporates
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217:United States Geological Survey
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172:magnetic anomalies
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66:Coordinates
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314:: 87–101.
178:References
297:13 August
141:Maud Rise
88:68°S 12°E
164:Gondwana
316:Bibcode
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257:Sources
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
