摘要
三座庙序列侵入岩U—Pb法一致曲线年龄值1708Ma、1717Ma;K—Ar法年龄值为1670Ma、1530Ma、1316Ma,表明该系列侵入岩为中元古宙长城纪大红峪期火山喷发岩的同期侵入体,属燕辽旋回兴城运动的产物。
Based on the isotopic age data: U-Pb is 1 768Ma, 1 717Ma; K-Ar is 1 670Ma, 1 530Ma and 1 316Ma, it is believed that the Shanzuomiao sequence intrusive rock in Jianping arca is formed in the same period with extrusive rock of the Dahongyu Stage, Changchcng Period, Middle Proterozoic, as the product of Xingcheng uplift, Yanliao tectonic cycle.
关键词
三座庙序列
地质年代
岩体
Western Liaoning
Jianping area
Shanzuomiao sequence
Geologic age