【作者】 刘瑞； 陈萍； 储成清； 韩君珂；

【Author】 LIU Rui;CHEN Ping;CHU Chengqing;HAN Junke;School of Earth and Environment,Anhui University of Science and Technology;

【机构】 安徽理工大学地球与环境学院；

【摘要】 本文以四川攀枝花太平矿煤为研究对象,利用ICP-MS测试煤中微量元素的含量,通过元素的含量及相关比值特征来探讨煤中微量元素对沉积环境的指示意义。结果表明:U、V、Cr、Ni、Zn、Cu等元素含量及相关比值特征反映太平矿24#和18#煤层主要形成于还原的水体环境,并且18#煤层在沉积过程中还经历过贫氧或富氧阶段;Sr/Cu值显示24#煤层形成于温湿气候,18#煤层可能形成于由温湿向干热条件转变的气候环境;Sr/Ba值指示24#煤层在淡水中沉积,而18#煤层在咸水中沉积,并且水体咸化是由于受到干热气候的影响。更多还原

【Abstract】 This paper took the Taiping Coal in Sichuan,Panzhihua as the object of studying,the contents of trace elements in coal was tested by ICP-MS,the indicating significance which trace elements in coal to sedimentary environment are discussed by the content of elements and correlation ratio characteristics.The results showed that:the contents of elements such as U,V,Cr,Ni,Zn and Cu and their correlation ratios reflected that the 24#and 18# seams in Taiping mine were mainly formed in the reductive water environment,and the 18# coal seam had experienced the stage of oxygen poor or oxygen enrichment during the deposition process;the Sr/Cu value indicated that the 24# coal seam formed in warm-humid climate,and the 18# coal seam may be formed in climate environment condition which changing from the warm-humid to the dry-heat;the Sr/Ba value indicated that the 24# coal seam was deposited in fresh water,while the 18# coal seam was deposited in saline water and the water salinization was due to the dry-hot climate.更多还原