摘要
盐源盆地是四川尤其是川西一重要聚煤盆地,其主要含煤地层为二叠系上统龙潭组、三叠系上统博大组、东瓜岭组、新近系盐源组。主要聚煤环境为河流岸后沼泽、三角洲平原泥炭沼泽、潮间泥炭坪及滨湖沼泽环境,滨湖沼泽及河流岸后沼泽环境为本区最有利的聚煤环境,其形成煤层层位及厚度较稳定,煤质较好;同时,盐源盆地主要控煤构造样式表现为褶皱断裂组合及单斜断块组合,褶皱断裂组合为本区最有利控煤构造。该项成果将为在四川西部的找煤工作提供宝贵的技术参考。
Yanyuan basin is an important coal basin in Sichuan,especially in the western Sichuan,the main coal-bearing strata are the Longtan formation of upper permian,boda and donggualing formations of late triassic,Yanyuan formation of the Neogene. The mainly coal-accumulating environment are the swamp behind bank in meandering river,the peat swamp in the delta plain,the peat flat at intertidal,shore lake swamp,shore lake swamp and the swamp behind bank in meandering river are the most favorable coal-accumulating environment,in which seats and thicknesses of the coal seam are more stable,coal quality is better. The mainly coal control structure type in Yanyuan basin are the combination of fold and fracture,the combination of monoclinic and fault block,the combination of fold and fracture the most favorable coal control structure type. Those will provide the work of finding coal in western Sichuan with a valuable reference.
出处
《煤炭技术》
CAS
北大核心
2015年第2期71-73,共3页
Coal Technology
基金
国土资源大调查项目(1212010020207)
关键词
盐源盆地
聚煤环境
控煤构造
沼泽
Yanyuan basin
coal-accumulating environment
coal control structure
swamp
