额尔宾山北坡泥盆系阿克塔什组厘定及沉积特征

摘要

巴音布鲁克地区额尔宾山北坡一带出露一套碎屑岩夹碳酸盐岩.该套岩石组合区域上与中泥盆统阿尔皮什麦布拉克组合存在较大差异.通过对乔洛特达坂幅PMⅣ地质剖面、乔洛特达坂幅PMⅥ地质剖面、乔洛特达坂幅PMXXXⅣ地质剖面、托斯都幅PMⅥ地质剖面研究分析,初步确定额尔宾山北坡一带地层层序,建议将其厘定为中泥盆统阿克塔什组.据地层岩石组合特征、区域综合柱状图对比等,将该岩组时代定为泥盆纪.%Clastic rocks and carbonate rocks aredistributedin the north of Erbin mountain of BaYinburkarea.The lithological combinationhas many differences with Devonian Arpishimaiblak Formation,and the stratigraphic and attribution of these rocks needs further research.Through the section research of Qiaoluotedaban PM Ⅳ、QiaoluotedabanPM Ⅵ、Qiaoluotedaban PMX X X Ⅳ 、TuoSidu Ⅵ,the stratigraphic sequence in Baluntai area is preliminarily determined.It is suggested that it belongs to Devonian,Aketashi Formation.The age of AKetashi Formation should be Devonian according to the features of rock assemblage,synthetic histogram comparison.