新疆伊犁盆地侏罗纪煤岩特征及煤相  

PETROGRAPHIC CHARACTERISTICS AND COAL FACIES OF JURASSIC COAL IN YILI BASIN,XINJIANG

作　　者：张井[1] 王士俊[1] 唐家祥[1] 

机构地区：[1]中国矿业大学

出　　处：《煤田地质与勘探》1997年第3期21-26,共6页Coal Geology & Exploration

摘　　要：应用煤岩学方法，探讨了新疆伊犁盆地侏罗纪煤的煤岩特征及煤相划分，将煤相划分为９种类型，即干燥森林沼泽相（包括两个亚相）、潮湿森林沼泽相（包括３个亚相）、草木混生型沼泽相或芦苇沼泽相（包括３个亚相）和开阔水域泥炭沼泽相。通过煤相分析，为伊犁盆地成煤环境的研究提供了佐证。Utilizing the coal petrographic method,the petrographic characteristics of Jurassic coal in Yili Basin are discussed,and nine coal facies are divided,i.e dry forest swamp facies (including two subfacies),wet forest swamp facies (three subfacies),mixed herbaceous and arboreous type swamp facies or reed bog facies (three subfacies )and open water peat swamp facies.By the coal facies analysis,an evidence is provided for the coal forming environment in Yilli Basin.

关 键 词：煤岩 煤相 盆地 侏罗纪 煤矿床 

分 类 号：P618.110.2[天文地球—矿床学]