摘要
以贵州黔东地区注溪钒矿床为例,分析测试其矿石和围岩的主微量元素含量,讨论各种特征元素的含量和比值,结果表明样品δCe最大值和最小值分别对应钒的最低和最高含量;有氧、缺氧不断转变的海水环境致使九门冲组同一岩性段仅底部出现矿体;矿石中V呈多价态主要是因为南华狭窄洋底部由阶梯式断层组成;海水缺氧且有大量富含V元素的有机质导致钒富集成矿;被动大陆边缘、多次海平面升降旋回和氧化还原界面之下为钒矿床的古地理环境。
Taking Zhuxi vanadium deposit in the Qiandong area, Guizhou province as an example, the concentration of major and trace dement of rocks and sandstone are analyzed and surveyed, and the contents and ratios of the characteristic elements are discussed. The results showed that the maximum and minimum ~ Ce value of the sample correspond to the low- est and highest levels of vanadium respectively; seawater environment with aerobic-anoxic continuous changing results in forming ore bodies only at the bottom of Jiumenchong Group with the same lithologic section. V in ores shows in multivalent form mainly due to the ladder faults at the narrow ocean bottom of Nanhua. Hypoxic seawater with V-riched organic matter results in ore-forming of vanadium. Passive continental margin, repeatedly eustatic cycles and redox interface serve as ancient geographical environments for vanadium deposits.
出处
《金属矿山》
CAS
北大核心
2013年第9期108-112,共5页
Metal Mine
基金
“十二五”国家科技支撑计划项目(编号:2011BAB06B04-05)
贵州地矿局地质科研项目(编号:200901)
关键词
注溪钒矿床
古地理环境
海平面旋回
Zhuxi vanadium deposit,Palaeo-geographic environment, Eustatic sea-level change
