论东河塘组的时代

ON THE AGE OF DONGHETANG FORMATION IN TARIM BASIN

东河塘组在塔里木盆地分布广泛，长期以来被视为早石炭世早期的沉积。近年来，开展了对巴楚小海子露头剖面和塔里木盆地沙漠覆盖区钻井剖面的深入研究，积累了大量资料。根据露头和井下东河塘组及其上覆、下伏地层层序的辨别和所含古生物化石的鉴定，认为东河塘组的地质时代应属于晚泥盆世，大致可与塔西南的奇自拉夫组进行对比。

Denghetang Formation,being regarded as Lower Carboniferous for a long time, is widespread in Tarim basin. According to the stratigraphic sequences and the palaeontological determinations of Donghetang Formation as well as its underlying and overlying strata, the Donghetang Formation tends to belong to Upper Devonian and is correlative with the Qizilafu Formation in the southwest Tarim.