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洋底大规模热液成矿系统的研究是近几十年来全球矿床研究重点领域之一。海底热液硫化物矿床主要分为两大类:VMS型矿床和SEDEX型矿床,一般规模巨大,矿石储量通常百万吨-上亿吨。典型的海底热液硫化物矿体自上而下通常分别为热液沉积物和烟囱体、固结的硫化物丘、网脉状矿石(马文璞,1993)。目前国内外对海底热液硫化物矿床成因的倾向认同:作为金属来源的新生玄武质洋壳、由地壳拉伸出现的裂隙系和驱动海水环流的热源为洋底热液成矿的三个必要条件(林文洲,2000)。成
The research of large-scale oceanic hydrothermal metallogenic system on the ocean floor has been one of the key research fields in the world in recent decades. Seabed hydrothermal sulfide deposits are mainly divided into two categories: VMS-type deposits and SEDEX-type deposits, the general size is huge, ore reserves usually million tons - hundreds of millions of tons. Typical seafloor hydrothermal sulfide ore bodies are generally top-down hydrothermal sediments and chimneys, consolidated sulfide mounds and reticulate ore (Marvin Pu, 1993). At present, the tendency of seabed hydrothermal sulfide deposits at home and abroad agrees with the identification of the origin of the newborn basaltic oceanic crust as a metal source, the fracture system caused by the crustal extension and the heat source driving the seawater circulation as the three necessary Conditions (Lin Wenzhou, 2000). to make