Bathymay : la structure sous-marine de Mayotte révélée par l'imagerie multifaisceaux
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- 作者：Jean-Christophe Audru ; Pol Guennoc ; Isabelle Thinon ; Olivier Abellard
- 关键词：Bathymetry ; Imagery ; Volcanoes ; Hazards ; Mayotte ; Comoros
- 刊名：Comptes Rendus Geoscience
- 出版年：2006
- 出版时间：December 2006
- 年：2006
- 卷：338
- 期：16
- 页码：1240-1249
- 全文大小：993 K
文摘
The BATHYMAY marine survey was carried out in January 2004 around the French volcanic island of Mayotte, onboard the research vessel Marion Dufresne 2. Multibeam bathymetry revealed for the first time the morphology of the whole outer slope. Preliminary interpretations show broad canyons that deeply incise the slope, numerous volcanoes and huge landslides. Large submarine plateaus are also highlighted, bounded by steep cliffs and active normal faults. A model for Mayotte is suggested, in which eruptive activity, sometimes influenced by normal faulting, was concentrated along a N140° regional line (the Comoros archipelago axis), with landslide activity concentrated on the northeastern and southwestern flanks of this line. To cite this article: J.-C. Audru et al., C. R. Geoscience 338 (2006).