浅地层剖面测量和海底摄像联合应用确定平顶海山富钴结壳分布界线

何高文; 梁东红; 宋成兵; 吴水根; 周建平; 张学华

浅地层剖面测量和海底摄像联合应用确定平顶海山富钴结壳分布界线

1.
中山大学地球科学系, 广东广州 510275
2.
广州海洋地质调查局, 广东广州 510760
3.
国家海洋局第二海洋研究所, 浙江杭州 310012

基金项目:

中国大洋协会国际海底区域研究开发“十五”计划DY105-16A航次; “资源勘查与评价”项目 DY105-01-02-1

中国大洋协会国际海底区域研究开发“十五”计划DY105-16A航次; “资源勘查与评价”项目 DY105-01-01-1

详细信息

作者简介:
何高文(1968—), 教授级高工, 在职博士, 主要从事大洋矿产资源勘查研究工作.E-mail: gwhe@21cn.com

中图分类号: P229
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- 被引次数: 0
出版历程
- 收稿日期: 2005-01-18
- 刊出日期: 2005-07-25

Determining the Distribution Boundary of Cobalt-Rich Crusts of Guyot by Synchronous Application of Sub-bottom Profiling and Deep-Sea Video Recording

1.
Department of Earth Sciences, Sun Yat-sen University, Guangzhou 510275, China
2.
Guangzhou Marine Geological Survey, Guangzhou 510760, China
3.
Second Institute of Oceanography, State Ocean Administration, Hangzhou 310012, China

摘要

摘要: 平顶海山富钴结壳分布上界的确定对准确估算结壳资源量至关重要.长期以来, 这一问题未能有效解决.通过浅地层剖面测量和海底摄像的首次联合应用, 发现浅地层剖面测量揭示的海山浅部地层结构与海山结壳的分布具有明显的相关性, 沉积物分布的上界往往与结壳分布下界对应.通过对浅剖测量结果的分析, 并对比海底摄像资料, 可以确定沉积物分布的下界, 进而推断结壳分布的上界, 据此判断西太平洋某海山结壳分布的上界水深为1560m左右.
- 浅地层剖面 /
- 海底摄像 /
- 平顶海山 /
- 富钴结壳 /
- 分布界线
Abstract: Determining the upper boundary of the cobalt-rich crust distribution of a guyot is important for estimating the mineral resources available, however, it has also long been an unsolved question. Correlations between the sub-bottom structure, revealed by sub-bottom profiling, and crust distribution can be revealed for the first time by the synchronous application of sub-bottom profiling and deep-sea video recording. The lower boundary of the sediment corresponds with the upper boundary of the crust. By analysis of these two kinds of data, the lower boundary of the sediment can be determined; therefore, the upper boundary of the crust distribution can be deduced. According to this method of analysis, the water depth of the upper boundary of crust distribution of a seamount in the western Pacific is about 1560m.
- sub-bottom profiling /
- deep-sea video recording /
- guyot /
- cobalt-rich crust /
- distribution boundary

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图 1 TOPAS PS018系统组成

Fig. 1. TOPAS PS018 system

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图 2 海底摄像系统组成

Fig. 2. Deep-sea video recording system

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图 3 某摄像测站浅地层剖面

A-H为图 4中对应的图号, SD为浅钻取样位置; a, b. A段(水深1 425~1 620 m); c, d. B段(水深2 505~2 610 m); a, c为实测剖面; b, d为解释结果

Fig. 3. Section A of sub-bottom profile from some video recording site

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图 4 某摄像测站特征位置

A.沉积物; B.砾状结壳; C.板状结壳; D.砾状、板状结壳; E.板状结壳; F.沉积物; G.砾状、板状结壳; H.砾状结壳

Fig. 4. Pictures of special location from a video recording site

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参考文献(15)

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