煤田地质与勘探2017，Vol.45Issue(5)：1-5,12,6.DOI:10.3969/j.issn.1001-1986.2017.05.001
贵州小牛井田煤的地球化学特征及古海平面变化
Geochemistry characteristics of coals and the paleosea level variation in Xiaoniu coalfield, Guizhou Province
摘要
Abstract
Based on test data of sulfur content,content of major and trace elements of a large number of Late Permian coals from Xiaoniu coalfield in Shuicheng County,Guizhou Province,the characteristics of element enrichment and their relationship with terrestrial debris were discussed.The emphasis is on the inversion of the total sulfur and trace elements to the sea level variation.The results show that the content of Si,Ca,Mg,Ti and K in coal is higher than the average of Chinese coal,and the content of Al,Fe and Na is lower than the average.Compared with the crustal value,B and Mo are relatively enriched;the enrichment of trace elements in coal is controlled to a certain extent by terrestrial debris,and major elements have certain inheritance to terrestrial debris.The vertical variation of total sulfur,trace elements B,Co,Cr,Cu,Ga,Ge,Mo,Ni,Pb,Sr,V and Zn in coal can be used to invert the sea-level variation.Low sulfur content and low trace element content in coal corresponded to transgressions,high total sulfur content,high trace element content corresponded to regressions.关键词
晚二叠世/全硫分/微量元素/常量元素/海平面变化Key words
Late Permian/total sulfur/trace element/major element/sea level variation分类
天文与地球科学引用本文复制引用
沈明联,杨瑞东,程伟,孔祥贵,曹正端..贵州小牛井田煤的地球化学特征及古海平面变化[J].煤田地质与勘探,2017,45(5):1-5,12,6.基金项目
贵州大学重点学科建设项目(GU002) （GU002）
贵州省国土资源厅公益性、基础性基金项目(黔国土资发[2015]34号)Key Disciplines Construction Projects of Guizhou University(GU002) （黔国土资发[2015]34号）
Geological Survey Projects of Department of Land and Resources of Guizou Province([2015]34) （[2015]34）
