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地球科学进展  2015, Vol. 30 Issue (1): 60-68    DOI: 10.11867/j.issn.1001-8166.2015.01.0060
研究论文     
北大西洋中脊海底多金属硫化物资源预测
方捷1, 5, 孙静雯2, 徐宏庆3, 叶锦华4, 陈建平5, 任梦依5, 唐超5
1.中国地质调查局南京地质调查中心, 江苏 南京 210016; 2.南京大学城市规划设计研究院有限公司, 江苏 南京 210008; 3.正德职业技术学院, 江苏 南京 211106; 4.中国地质调查局发展研究中心, 北京 100037; 5.中国地质大学(北京)国土资源与高新技术研究中心, 北京 100083
Prediction of Seafloors Polymetallic Sulphides Resources in the North Atlantic Ridge Area
Fang Jie1, 5, Sun Jingwen2, Xu Hongqing3, Ye Jinhua4, Chen Jianping5, Ren Mengyi5, Tangchao5
1 . Nanjing Center, China Geological Survey, Nanjing 210016, China; 2. Institute of Urban Planning and design, Nanjing University, Nanjing 210008, China; 3. Zhengde Polytechnic College, Department of Electronic Engineering, Nanjing, Jiangsu 11106, China; 4. Development and Research Center, China Geological Survey, Beijing 100037, China; 5. Institute of Land Resources and High Techniques, China University of Geosiences, Beijing 100083, China
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摘要:

海底热液多金属硫化物是继大洋铁锰结核和富钴结壳之后发现的又一巨大具有开发远景的海底矿产资源, 具有巨大的潜在经济价值和良好的开发前景。通过综合分析国内外海底矿产资源特征, 总结海底多金属硫化物资源的找矿标志, 初步建立了海底多金属硫化物资源的描述性找矿模型, 并开展了北大西洋中脊海底多金属硫化物资源预测工作。证据权预测结果表明海底多金属硫化物的分布与水深地形、地球物理、海底扩张速率、沉积物厚度、海底火山地震等标志有很大的关系。预测结果与已有热液点具有较好的叠合度, 预测方法、预测模型具有可信度及可操作性, 对海底多金属硫化物资源调查和评价具有重要的指导意义。

关键词: 海底热液找矿模型证据权法找矿标志    
Abstract:

Seafloor polymetallic sulphides are a huge development prospect of seabed mineral resources after the discovery of the Fe-Mn nodules and Cobalt-rich crusts. Seafloor polymetallic sulphides are produced by seafloor hydrothermal activities, which are high rich in copper, lead, zinc, gold and silver and other metals. Seafloor polymetallic sulphides mainly distribute in the mid-ocean ridge areas which have huge potential economic value and good development prospect. Currently, the main research focuses on the distribution of seafloor hydrothermal, mineralization mechanism, formation mechanism, environmental effect and so on, and the study and prediction of regional sulfide resources at this stage have almost not been carried out. Base on the information collection of the domestic and foreign researches of seabed mineral resources and comprehensive analysis of the characteristics of seabed mineral resources, the seafloor polymetallic sulfides resources ore-controlling factors and prospecting criteria were summarized, and a seafloor polymetallic sulphides descriptive resource prospecting model was initially established. The North Atlantic ridge area was chosen as the first stage to make a study to carry out the seafloor polymetallic sulfides resource forecasting. The predicted results of the weights of evidence method showed that there was a great relationship between the distribution of seafloor polymetallic sulfides resources and the indicators such as the depth of seabed topography, geophysical features, seafloor spreading rate, sediment thickness, submarine volcano seismics. The predicted results had a good superimposed effect with the existing hydrothermal point. Forecasting methods and model are credible and operational. The work of sulfide resource prediction and evaluation has a good guidance.

Key words: Seafloor hydrothermal    Prospecting indicator    Prospecting model    Weights of evidence method.
收稿日期: 2014-07-07 出版日期: 2015-01-20
ZTFLH:  P736.3  
基金资助:

中国大洋协会国际海域资源调查与开发“十二五”课题“多金属硫化物资源评价方法研究”(编号:DY125-11-R-02)资助

作者简介: 作者简介:方捷(1987-), 男, 安徽黄山人, 助理工程师, 主要从事矿产资源评价研究.E-mail:fangjie8785@163.com
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引用本文:

方捷, 孙静雯, 徐宏庆, 叶锦华, 陈建平, 任梦依, 唐超. 北大西洋中脊海底多金属硫化物资源预测[J]. 地球科学进展, 2015, 30(1): 60-68.

Fang Jie, Sun Jingwen, Xu Hongqing, Ye Jinhua, Chen Jianping, Ren Mengyi, Tangchao. Prediction of Seafloors Polymetallic Sulphides Resources in the North Atlantic Ridge Area. Advances in Earth Science, 2015, 30(1): 60-68.

链接本文:

http://www.adearth.ac.cn/CN/10.11867/j.issn.1001-8166.2015.01.0060        http://www.adearth.ac.cn/CN/Y2015/V30/I1/60

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