太平洋东马里亚纳海盆多金属结核成因及品位控制因素
发布时间：2018-12-07 13:37
【摘要】：本文选取东马里亚纳海盆与CC区中国多金属结核合同区西区的多金属结核样品,采用ICPOES、ICP-MS以及XRD等测试方法对结核表层进行了地球化学与矿物学分析,并探讨了东马里亚纳海盆结核成因以及其主要成矿元素含量的控制因素。结果表明,结核具备水成型结核的主、微量元素特征,并受到成岩作用的影响。结核上下表层各元素含量差异明显,上表层Fe、Co、P等多数主量元素及∑REYs含量均高于下表层,而Mn、Cu、Ni等元素含量在下表层明显增加。根据结核矿物学以及海洋环境特征,并结合前人数据统计分析认为,东马里亚纳海盆结核样品中Mn、Ni、Cu、Co、Fe、Ce的品位主要受控于Mn矿物组成、底层海水溶解氧和表层海水初级生产力,La、Y等稀土元素品位还受到洋中脊热液活动的制约。
[Abstract]:In this paper, the samples of polymetallic nodules from the eastern Mariana basin and the western part of the China polymetallic nodules contract area in CC area are selected. The geochemical and mineralogical analysis of the surface layer of nodules is carried out by means of ICPOES,ICP-MS and XRD. The origin of nodules in the eastern Mariana basin and the controlling factors of their main ore-forming elements are discussed. The results show that the nodules possess the characteristics of main and trace elements and are influenced by diagenesis. The contents of most principal elements such as Fe,Co,P and 鈭，
本文编号：2367285
[Abstract]:In this paper, the samples of polymetallic nodules from the eastern Mariana basin and the western part of the China polymetallic nodules contract area in CC area are selected. The geochemical and mineralogical analysis of the surface layer of nodules is carried out by means of ICPOES,ICP-MS and XRD. The origin of nodules in the eastern Mariana basin and the controlling factors of their main ore-forming elements are discussed. The results show that the nodules possess the characteristics of main and trace elements and are influenced by diagenesis. The contents of most principal elements such as Fe,Co,P and 鈭，
本文编号：2367285
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