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The sequence of events around the epicentre of the 1929 Grand Banks earthquake: initiation of debris flows and turbidity current inferred from sidescan sonar
Continental slope sediment failures around the epicentre of the 1929 ‘Grand Banks’ earthquake have been imaged with the SAR (Systeme Acoustique Remorque) high-resolution, deep-towed sidescan sonarExpand
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Classification of Offshore Mass Movements
More than 100 offshore mass-movement deposits have been studied in Holocene and Pleistocene sediments. The processes can be divided into three main types: slides/slumps, plastic flows, and turbidityExpand
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Effect of gas hydrates melting on seafloor slope instability
We present a theoretical study of the thermodynamic chemical equilibrium of gas hydrate in soil by taking into account the influence of temperature, pressure, pore water chemistry, and the mean poreExpand
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  • Open Access
Polygonal faults-furrows system related to early stages of compaction - upper Miocene to recent sediments of the Lower Congo Basin
A new polygonal fault system has been identified in the Lower Congo Basin. This highly faulted interval (HFI), 700±50 m thick, is characterized by small extensional faults displaying a polygonalExpand
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  • Open Access
Morphology and recent evolution of the Zaire turbidite system (Gulf of Guinea)
The Zaire (Congo) turbidite system developed in an east-west direction off the Congo, Zaire, and Angola continental margins in the southeastern Atlantic Ocean. It includes an incised canyon thatExpand
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ROV study of a giant pockmark on the Gabon continental margin
A giant, 800-m wide pockmark, called Regab, was discovered along the Equatorial African margin at 3160-m water depth and was explored by remote operated vehicle (ROV) as part of the ZaiangoExpand
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  • Open Access
Seafloor facies related to upward methane flux within a Giant Pockmark of the Lower Congo Basin
The origin of the cold fluid venting from a Giant Pockmark within the Lower Congo Basin has been elucidated based upon results of precise mapping, submersible dives, gravity coring and isotopicExpand
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  • Open Access
Physical and chemical characterization of gas hydrates and associated methane plumes in the Congo-Angola Basin
As a part of the ZAIANGO IFREMER/TOTAL-FINA-ELF program, gas hydrates were collected from a gravity sediment core on the Congo–Angola margin during the ZAI-ROV cruise (December 2000). Gas hydrates,Expand
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Seafloor imagery from the BIG'95 debris flow, western Mediterranean
Seafloor backscatter data are used to image the product of one of the youngest major mass-wasting events in the northwestern Mediterranean Sea: a 26 km3 debris-flow deposit that covers 2000 km2 ofExpand
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  • Open Access
Deep‐sea avulsion and morphosedimentary evolution of the Rhône Fan Valley and Neofan during the Late Quaternary (north‐western Mediterranean Sea)
The Petit-Rhone Fan Valley (north-western Mediterranean) is a broad, sinuous, filled valley that is deeply incised by a narrow, sinuous thalweg. The valley fill is differentiated into three seismicExpand
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