摘要
内蒙古阿尔山地区泥盆系塔尔巴格特组主体为一套滨岩相陆源碎屑砂岩夹火山碎屑岩沉积,其沉积环境从早到晚经历了海相→海陆过渡相→陆相的过渡,晚期为陆相火山碎屑沉积。整体上,该地区塔尔巴格特组为一套无障壁滨岸-浅海陆棚环境沉积。
Stratigraphic characteristics and sedimentary environments of the Devonian Tarbaget Formation are described on the basis of regional geological survey and measurements of the studied sections in the Arxan region,Inner Mongol.The Tarbaget Formation is considered as a succession of siliciclastic sandstones intercalated with pyroclastic deposits.The sedimentary facies dominantly consist of the littoral facies.The sedimentary environments show a long and complex history,with early marine facies,marine-continental transitional facies and continental facies,and late continental pyroclastic deposits.On the whole,the Tarbaget Formation is built up of a succession of nonbarrier littoral to shallow marine shelf deposits.
出处
《沉积与特提斯地质》
CAS
CSCD
2010年第4期66-71,共6页
Sedimentary Geology and Tethyan Geology
基金
内蒙古阿尔山等五幅1:5万区域矿产地质调查项目(编号:NMKD2006-08)资助
关键词
阿尔山
泥盆系
塔尔巴格特组
沉积相
Arxan
Devonian
Tarbaget Formation
sedimentary facies
