全球现代海底块状硫化物矿床资源量估计

发布时间：2018-03-17 17:35

本文选题：SMS矿床　切入点：远景区　出处：《海洋地质与第四纪地质》2014年05期 　论文类型：期刊论文

【摘要】：随着世界发展对各种资源需求量的增大,海底资源究竟有多少也已成为全球各界探索的热点问题。现代海底块状硫化物(SMS)作为当今重要的潜在海底金属矿产资源,已在全球各个海域被广泛勘探和调查研究。在国际海底管理局建立的全球海底热液活动数据库基础上,利用美国地质调查所海底矿产评价"三部法",即:(1)将洋中脊、海底火山弧、弧后扩张中心圈定为全球SMS矿床远景区;(2)选定验证SMS矿床适用的矿床吨位、品位模型;(3)根据质通量、热通量、热液柱以及控制区数据估计全球热液喷口区数量与SMS矿床数量,对现代海底SMS矿床的资源量进行初步估计。结果显示:全球现代SMS矿床约为1 000个,所含资源量约为6×108 t,其中铜、锌、铅金属量为3×107 t,与陆地新生代以来的火山块状硫化物(VMS)矿床1.9×107 t相近。
[Abstract]:With the increasing demand for various kinds of resources in the world, the amount of seabed resources has become a hot issue in the world. As an important potential submarine metal mineral resource, modern seabed massive sulphide (SMSs) has become a hot issue. On the basis of the database of global seabed hydrothermal activities established by the International seabed Authority, the mid-ocean ridge is to be established using the "three methods" of the United States Geological Survey for seabed Mineral Evaluation, or: 1). Subsea volcanic arc, delineated as the global SMS deposit remote area by the back-arc extension center, is selected to verify the suitable deposit tonnage and grade model of SMS deposit, according to the mass flux and heat flux, The data of hydrothermal column and control area estimate the number of hydrothermal vent area and SMS deposit, and estimate the resource quantity of modern submarine SMS deposit. The result shows that there are about 1 000 modern SMS deposits in the world. The content of resources is about 6 脳 10 ~ 8 t, of which copper, zinc and lead are 3 脳 10 ~ 7 t, close to 1.9 脳 10 ~ 7 t of volcanic massive sulphide (VMS) deposits since the terrestrial Cenozoic.
【作者单位】：国家海洋局第一海洋研究所;国家深海基地管理中心;
【基金】：大西洋多金属硫化物成矿潜力与资源环境评价(DY125-12-R-01)
【分类号】：P744;P624.7

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