The Ayadeng and Sailinhudong Formations were established in the 1970's by the regional geological survey, and the former was considered to belong to the Proterozoic Baiyunebo Group and the later belonged to the Sinian System.
The Ayadeng and Sailinhudong Formations were established in the 1970's by the regional geological survey, and the former was considered to belong to the Proterozoic Baiyunebo Group and the later belonged to the Sinian System.
摘要阿牙登组和腮林忽洞组是上世纪70年代1/20万区调建立的地层单位，当时将阿牙登组置于白云鄂博群，腮林忽洞组归于震旦系。