摘要
为查明新疆吐哈盆地煤层的原始成煤环境,应用煤岩学方法,通过GI-TPI关系图解,划分了吐哈盆地侏罗纪煤相类型,将煤相划分为4种类型,即较深覆水森林沼泽相、湿地森林沼泽相、湿地草本沼泽相和湖沼低位沼泽相。通过煤相分析,进一步在盆地内划分出河成沼泽体系、河湖混成沼泽体系和湖成沼泽体系3类成煤沼泽体系,为吐哈盆地成煤环境的研究提供了佐证。
In order to identify the original coal forming environment of Turpan-Hami Basin,Xinjiang region.This article utilizing the coal-petrographic method,Through the GI-TPI relation diagram,the petrographic characteristics of Jurassic coal in Turpan-Hami Basin are discussed.Four coalfacies are divided,i.e.Deep overlying water forest swamp facies,wetland forest swamp facies,Wetland marsh facies and Low lake marsh facies.By the coal facies analysis,three kinds of coal forming swamp system are divided in the basin,they are river swamp system,hybrid swamp system and lacustrine swamp system.And an evidence is provided for the coal-forming environment in Turpan-Hami Basin.
出处
《新疆地质》
CAS
CSCD
2016年第1期144-149,共6页
Xinjiang Geology
基金
中国地质调查局国土资源大调查项目"新疆东部主要含煤盆地煤炭资源综合评价"(1212011085499)项目资助
关键词
吐哈盆地
侏罗纪
煤岩
煤相
Turpan-Hami Basin
Jurassic
Coal Petrography
Coal Facies
