Geological overview of the Angola-Congo margin, the Congo deep-sea fan and its submarine valleys

被引:114
|
作者
Savoye, Bruno [2 ]
Babonneau, Nathalie [1 ,3 ]
Dennielou, Bernard [2 ]
Bez, Martine [4 ]
机构
[1] Univ Brest, CNRS, UMR Domaines Ocean 6538, IUEM, F-29280 Plouzane, France
[2] IFREMER, Environm Sedimentaires Lab, F-29280 Plouzane, France
[3] Univ Europeenne Bretagne, F-29280 Plouzane, France
[4] TOTAL, F-64018 Pau, France
关键词
Congo-Angola margin; Congo channel; Sedimentary deposits; Turbidite; PASSIVE MARGIN; TURBIDITY CURRENTS; RECENT EVOLUTION; ATLANTIC; CHANNEL; CANYON; AFRICA; SYSTEM; RECONNAISSANCE; ARCHITECTURE;
D O I
10.1016/j.dsr2.2009.04.001
中图分类号
P7 [海洋学];
学科分类号
0707 ;
摘要
The Congo deep-sea fan is one of the largest fans in the world still affected by presently active turbidity currents. The present activity of deep-sea sedimentary processes is linked to the existence of a direct connection between the Congo River estuary and the Congo canyon head that allows relatively continuous sediment feeding of the deep-sea environment, in spite of a wide continental shelf (150 km). Because of this important activity in terms of sedimentary processes, the deep-sea environment of the Congo-Angola margin presents major interests concerning physical, chemical and biological studies near the seafloor. The main aim of this paper is to present the initial geological context of the BioZaire Program, showing a synthesis of the major results of the ZaiAngo Project including (1) the brief geological setting of the Congo-Angola margin, (2) the structure of the modern Congo deep-sea fan, (3) the sedimentary architecture of the recent Congo turbidite system (from the canyon to the distal lobes) and (4) the recent and present turbidite sedimentation. In order to provide useful information and advice relevant to biological and geochemical studies across the Congo sedimentary system, this article is particularly focused on the present sedimentary processes and the present activity of turbidity current along the Congo canyon and channel. Crown Copyright (C) 2009 Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:2169 / 2182
页数:14
相关论文
共 50 条
  • [1] Structure and recent evolution of the Zaire deep-sea fan:: preliminary results of the ZaiAngo 1 & 2 cruises (Angola-Congo margin).
    Savoye, B
    Cochonat, P
    Apprioual, R
    Bain, O
    Baltzer, A
    Bellec, V
    Beuzart, P
    Bourillet, JF
    Cagna, R
    Cremer, M
    Crusson, A
    Dennielou, B
    Diebler, D
    Droz, L
    Ennes, JC
    Floch, G
    Guiomar, M
    Harmegnies, F
    Kerbrat, R
    Klein, B
    Kuhn, H
    Landuré, JY
    Lasnier, C
    Le Drezen, E
    Le Formal, JP
    Lopez, M
    Loubrieu, B
    Marsset, T
    Migeon, S
    Normand, A
    Nouzé, H
    Ondréas, H
    Pelleau, P
    Saget, P
    Séranne, M
    Sibuet, JC
    Tofani, R
    Voisset, M
    COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE II FASCICULE A-SCIENCES DE LA TERRE ET DES PLANETES, 2000, 331 (03): : 211 - 220
  • [2] Early to middle Miocene foraminifera from the deep-sea Congo Fan, offshore Angola
    Kender, Severyn
    Kaminski, Michael A.
    Jones, Robert W.
    MICROPALEONTOLOGY, 2008, 54 (06) : 477 - 568
  • [3] Organic carbon accumulation in modern sediments of the Angola basin influenced by the Congo deep-sea fan
    Baudin, Francois
    Martinez, Philippe
    Dennielou, Bernard
    Charlier, Karine
    Marsset, Tania
    Droz, Laurence
    Rabouille, Christophe
    DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY, 2017, 142 : 64 - 74
  • [4] Aliphatic hydrocarbons and triterpenes of the Congo deep-sea fan
    Mejanelle, Laurence
    Riviere, Beatrice
    Pinturier, Laurence
    Khripounoff, Alexis
    Baudin, Francois
    Dachs, Jordi
    DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY, 2017, 142 : 109 - 124
  • [5] Authigenic carbonates from methane seeps of the Congo deep-sea fan
    Catherine Pierre
    Yves Fouquet
    Geo-Marine Letters, 2007, 27 : 249 - 257
  • [6] Authigenic carbonates from methane seeps of the Congo deep-sea fan
    Pierre, Catherine
    Fouquet, Yves
    GEO-MARINE LETTERS, 2007, 27 (2-4) : 249 - 257
  • [7] Patterns of carbonate authigenesis at the Kouilou pockmarks on the Congo deep-sea fan
    Haas, Antonie
    Peckmann, Joern
    Elvert, Marcus
    Sahling, Heiko
    Bohrmann, Gerhard
    MARINE GEOLOGY, 2010, 268 (1-4) : 129 - 136
  • [8] Mineralization of vestimentiferan tubes at methane seeps on the Congo deep-sea fan
    Haas, Antonie
    Little, Crispin T. S.
    Sahling, Heiko
    Bohrmann, Gerhard
    Himmler, Tobias
    Peckmann, Joern
    DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS, 2009, 56 (02) : 283 - 293
  • [9] The long-term evolution of the Congo deep-sea fan: A basin-wide view of the interaction between a giant submarine fan and a mature passive margin (ZaiAngo project)
    Anka, Zahie
    Seranne, Michel
    Lopez, Michel
    Scheck-Wenderoth, Magdalena
    Savoye, Bruno
    TECTONOPHYSICS, 2009, 470 (1-2) : 42 - 56
  • [10] Reconnaissance study of the ancient Zaire (Congo) deep-sea fan (ZaiAngo Project)
    Anka, Z
    Séranne, M
    MARINE GEOLOGY, 2004, 209 (1-4) : 223 - 244