han; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" class=MsoNormal align=left>The eastern Qinling molybdenum belt is the main molybdenum metallogenic regions in China, which is located in the southern margin of North China Craton. Molybdenum deposits generally occur in nearly E-W direction along the tectonic lineation, most of which occur as porphyry-type deposits. There is a trend of porphyry Cu-Mo, Mo and Au-Mo deposit zoning from south to north, similar to the mineralization zoning of porphyry Cu, Cu-Mo and Mo in subduction zone. It indicates that the molybdenum mineralization was correlated with the northward subduction of the Yangtze Block beneath the North China Block. According to Re-Os chronology data of molybdenite from Mo deposits in the eastern Qinling, three episodes of molybdenum mineralization are recognized: hansi-font-family: ’Times New Roman’">～220 Ma, hansi-font-family: ’Times New Roman’">～140 Ma andhansi-font-family: ’Times New Roman’">～110 Ma.
