The Kepingtage Formation of Lower Silurian in the Central Tarim and peri-clinal area is one of the impor-tant target layers in the Tarim basin.

• 塔里木盆地塔中及其围斜区下志留统柯坪塔格组是重要的勘探目的层之一,长期以来,中石油及中石化将其划为下志留统塔塔埃尔塔格组。