CapTimiris Canyon: A newly discovered channel system offshore of Mauritania
CapTimiris Canyon: A newly discovered channel system offshore of Mauritania
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卡普蒂米里斯峡谷：毛里塔尼亚近海新发现的水道系统
DOI：
10.1029/2004eo420001
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
R. Wynn
中科院分区：
文献类型：
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作者：
S. Krastel;T. Hanebuth;A. A. Antobreh;R. Henrich;C. Holz;M. Kölling;H. Schulz;K. Wien;R. Wynn
过去几十年的深入研究极大地提高了我们对深海运行过程的理解。人们特别关注大陆边缘，因为沉积在这些地区的沉积物可以提供过去气候变化的高分辨率记录，并成为世界上一些主要油气藏的所在地。然而，对深海的探索和了解仍然是21世纪的巨大挑战之一[Stow and Mayall, 2000]，许多令人着迷的特征仍有待发现。
德国不莱梅大学海洋边缘研究中心最近在 M58/1 号流星巡航（2003 年 4 月 21 日从塞内加尔达喀尔出发，2003 年 5 月 12 日返回西班牙拉斯帕尔马斯）期间强调了深水新发现的潜力。在毛里塔尼亚附近发现了一条长达 400 公里的壮观海底蜿蜒航道系统。在本文中，该系统称为 Cap Timiris Canyon（图 1）。尽管之前已经描述了陆架断裂处和最上坡的一系列切沟[例如，Rust 和 Wienecke，1973]，但这个海底通道系统的巨大尺寸和复杂形态以前是未知的。
Intensive research over the past decades has greatly improved our understanding of processes operating in the deep ocean. There has been a particular focus on continental margins, as sediments deposited in these areas can provide a high-resolution record of past climatic changes, as well as serve to host some of the world's major hydrocarbon reservoirs. However, the exploration and understanding of the deep ocean remains one of the great challenges of the 21st century [Stow and Mayall, 2000], and many fascinating features still wait to be found.
The potential for new deep-water discoveries was recently highlighted during Meteor cruise M58/1 (depart Dakar, Senegal, 21 April 2003, return Las Palmas, Spain, 12 May 2003) of the Research Center Ocean Margins at the Universitat Bremen in Germany. A spectacular 400-km-long submarine meandering channel system was discovered off Mauritania. In this article, the system is called the Cap Timiris Canyon (Figure 1). Although a series of incisional gullies at the shelf break and uppermost slope have been described before [e.g., Rust and Wienecke, 1973], the enormous size and complex morphology of this submarine channel system were previously unknown.