摘要
为探讨贵州钼-镍多金属矿层形成的沉积环境与成矿作用,对其典型矿床矿层及顶底页岩样品采用电感耦合等离子质谱仪进行系统的微量元素、稀土元素分析测试。结果表明:含矿岩系具有海相热水沉积特征,为非正常海水沉积,可能受陆源影响强烈,沉积环境为缺氧的还原环境;含矿岩系受热水作用影响,并在矿层处达到最强,成矿作用受热水作用影响明显;钼-镍多金属矿层的形成可能是在早期成岩的基础上迅速叠加一期成矿作用的结果,代表了一期海底热液的活动。
In order to investigate the sedimentary environment and mineralization of Mo-Ni polymetallic ore layer in Guizhou province,the trace elements and REE of the samples of typical ore beds and the top and bottom shale samples are systematically analyzed by ICP-MS method.The result shows that the ore-bearing black rock series are characterized by marine hydrothermal sedimentary setting,which is abnormal seawater sedimentary environment and might be strongly influenced by terrestrial source.The sedimentary environment is anoxic reduction environment.The ore-bearing black rock series are affected by hot water,and the strongest level is at the ore layer.The mineralization is obviously influenced by the action of hot water.The formation of Mo-Ni polymetallic ore layer might be the result of the rapid superposition of one stage mineralization on the basis of early diagenesis,which represents the activity of one submarine hydrothermal stage.
作者
鲜绍军
罗俊峰
张庆华
刘玲
蒲庆隆
XIAN Shaojun;LUO Junfeng;ZHANG Qinghua;LIU Ling;PU Qinglong(Geological and Mineral Exploration Institute,Non-ferrous Metals and Nuclear Industry Geological Exploration Bureau of Guizhou,Guiyang 550005,Guizhou,China;Non-ferrous Metals and Nuclear Industry Geological Exploration Bureau of Guizhou,Guiyang 550005,Guizhou,China)
出处
《矿产与地质》
2021年第6期1075-1082,共8页
Mineral Resources and Geology
基金
贵州省公益地勘基金项目(黔国土资综合函〔2017〕257号)资助。
