羊草沟盆地龙家堡矿区营城组沉积环境与聚煤特征  

Sedimentary environment and coal-accumulating characteristics of Yingcheng Formation,Longjiapu mining area of Yangcaogou Basin,Jilin Province

作　　者：杨忠习[1] 刘文华[1] 孙野[1] 

机构地区：[1]吉林省煤田地质物探公司,吉林长春130033

出　　处：《吉林地质》2013年第2期64-69,共6页Jilin Geology

摘　　要：从收集整理资料入手,阐述了羊草沟盆地的形成、沉积及演化过程,即羊草沟煤田成煤环境是在火山活动间歇期形成的。分析了沉积环境与聚煤特征,即盆地中心为湖相转化为泥炭沼泽相成煤,向盆地边缘则由扇三角洲转化为泥炭沼泽相的成煤,从盆地中心向盆地边缘发展:即厚煤带到分叉变薄带,最后无煤带。沉积与中心与聚煤中心重合。Based on the collection information,elaborated formation sedimentary and evolution process of the Yangcaogou Basin,The Yangcaogou coalfield environment information is in volcanic activities stopped,in this paper,we analyzed sedimentary environment and coal-accumulating characteristics,the lacustrine facies changed into peat swamp facies and coal forming in the center of basin,the edge of basin,the fan delta changed into peat swamp facies and coal forming,from the center to edge of basin development,from thick coal belt to thin with bifurcate to no coal belt.Deposits coincided with coal-accumulating center.

关 键 词：羊草沟盆地 沉积环境 聚煤特征 泥炭沼泽相 聚煤中心 

分 类 号：P618.11[天文地球—矿床学]