He and Ar isotopes of the Tertiary volcanic rocks from Jiyang basin and nearby Shanwang and Qixia areas in Shandong peninsula have been analyzed. The results sh
In Lingyuan region of West Liaoning Province, the Zhangjiakou Formation (J3z) and the Yixian Formation (K1y) display an angular unconformity. That is, the Lower
Tectonic dynamic system transition, one of the main factors in metallogenesis, controls metallogenic fluid movement and ore body location in orefields and on an