华南早寒武世含镍钼多金属黑色岩系有机地球化学特征
首发时间:2018-01-05
摘要:湖南张家界三岔下寒武统黑色岩系中发育有镍钼多金属矿床,这是华南乃至全球这类矿床的典型实例之一。其成因由于成矿作用过程复杂而存在争议。目前研究认为主要存在以下5种元素来源:(1)地外来源;(2)热水(液)来源;(3)海水来源;(4)火山碎屑来源;(5)多种成因复合而成。本文通过有机地球化学研究,对黑色页岩及含矿层进行分析,结果发现有机质主要来源于低等菌藻类,有机质在成矿中起到重要作用。
关键词: 含Ni-Mo多金属黑色岩系 有机成矿作用 早寒武世 华南
For information in English, please click here
Organic geochemistry of the early Cambrian black rock series hosting Ni-Mo polymetallic deposits from South China
Abstract:The Ni-Mo polymetallic deposits hosted in Early Cambrian black rock series in the Zhangjiajie Shancha of Hunan Province, China is a representative case of such deposits in southern China and even worldwide. Their origin is debatable because the mineralization is complex. There are five possible sources for this deposit: (1) External of Earth; (2) Hydrothermal; (3) Seawater; (4) Volcaniclastic; (5) Multiple. Organic geochemistry is conducted in this paper, and after analyzing the black shale and ore layer, it is realized that the source of organic matter is mainly bacteria and algae. Besides, the organic matter played an important role in mineralization.
Keywords: The black rock series hosting Ni-Mo polymetallic deposits Organic mineralization The early Cambrian South China
引用
No.****
同行评议
勘误表
华南早寒武世含镍钼多金属黑色岩系有机地球化学特征
评论
全部评论0/1000