在恰布林组硅质岩砾石中获得较丰富的放射虫化石， 共鉴定放射虫化石１３ 属１５ 种，放射虫化石的时代为早白垩世早阿普第期， 根据地层上下关系， 将恰布林组的时代限定为早白垩世晚阿普第期。在此基础上， 结合恰布林组岩石组合特征、古水流特征、化石组合特征以及区域构造， 得出恰布林组的物源来自北部的火山弧和早白垩世形成的蛇绿岩混杂岩体 The abundance of radiolarian fossils was obtained from the grained rocks of the Qiaubulin Formation. Thirteen species of 13 genera were identified, and the age of the radiolarian fossils was Early Cretaceous during the Early Cretaceous. Based on the stratigraphic correlation, The Bollinger era was defined as late Early Cretaceous Apurite. On this basis, combining the characteristics of the rock assemblage, paleocurrent and fossil assemblage and the regional structure of the Qiabrin Formation, it is concluded that the volcanic arc originating from the north of the Qiabrin Formation and the ophiolite melange formed in the Early Cretaceous body