• 责任者：Zhu Zhengjie (Chongqing Key Laboratory of Exogenic Mineralization and Mine Environment ; Chongqing Institute of Geology and Mineral Resources ; Chongqing 400042 ; China) ; Zhu Changsheng
• 刊名：Journal of Mineralogy and Petrology
• 出版年：2011
• 卷期：31(2)
• 关键词：黑色岩系 ; black rock series ; 元素地球化学 ; elements geochemistry ; 多金属矿 ; polymetallic ores ; 重庆 ; Chongqing
• 页码：p.66-72
• 图表：6 illus., 2 tables, 31 refs.
• 分类号：1001
• issnNo：ISSN1001-6872
• isbnNo：CN51-1143/TD

 The black rock series of Lower Cambrian are well developed in Chengkou district, Chongqing. ICP-MS techniques were used to analyze trace element contents in Lower Cambrian black rock series, including cherts, black siltstones and multi-elements concentrated layers. REE geochemical characteristics and their diagrams, high enrichments of Cr, Sb, As, Bi and U/Th ratios indicated that black rock series mainly formed by hydrothermal deposition. Meanwhile, the petrogenesis of black rock series was associated with volcanism, which provided the composition and dynamics to the hydrothermal activity.