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北大西洋中脊海底多金属硫化物资源预测

DOI: 10.11867/j.issn.1001-8166.2015.01.0060, PP. 60-68

Keywords: 海底热液,找矿标志,找矿模型,证据权法

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Abstract:

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。

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