Abstract:In rock series, Yanshanian intrusive rocks in the Zhejiang-Jiangxi-Anhui border area are similar to those in the Tongling and Dexing areas, being all high-K calc-alkaline series. In rock types, the rocks in the Zhejiang-Jiangxi-Anhui border area are more acid than those in the Tongling and Dexing mineralization-concentrated areas, i.e., the rocks in the former consist mainly of monzonitic granite and granodiorite, whereas those in the latter are granodiorite and quartz diorite. Rittman index gradually increases, A/CNK gradually decreases and K/K+Na gradually decreases from the Zhejiang-Jiangxi-Anhui border area to the Dexing area, and then to the Tongling area. In petrologic chemistry, the intrusions in the Zhejiang-Jiangxi-Anhui border area are richer in Si and K than those in the Dexing and Tongling areas, with the evolution towards the depletion of Si and K from the Zhejiang-Jiangxi-Anhui border area to the Dexing area, and then to the Tongling area. The intrusions in the Zhejiang-Jiangxi-Anhui border area are depleted in Mg, Fe and Ca dark minerals and incompatible elements such as Ti and P. The intrusions evolved towards the depletion of Si, K and enrichment of Mg and Fe from the Zhejiang-Jiangxi-Anhui border area to the Dexing area, and then to the Tongling area. In original petrologic types, the rocks in the Zhejiang-Jiangxi-Anhui border area are mainly I-type monzonitic granite and dioritic granite, with very few samples belonging to S-type granite. There is no S-type granite in the Dexing and Tongling mineralization-concentrated areas. The trace elements, isotope features and petrologic features of the Zhejiang-Jiangxi-Anhui border area indicate that the source was mainly derived from the crust, whereas the source of the intrusions in the Dexing and Tongling areas from crust-mantle mixing, or from the entry of large amounts of mantle materials into magma. The Zhejiang-Jiangxi-Anhui border area is situated on the Jiangnan anticlise; the Dexing mineralization-concentrated area lies on the southeast side of the eastern anticlise, and is close to the Qiantang sag; the Tongling area lies in the lower Yangtze sag area. These backgrounds are likely to be some of the factors which result in the difference in original petrologic types of these areas. In the light of petrologic assemblages, original types, petrochemical features and sources, the authors hold that it is difficult to find the Tongling-type Cu deposits and the Dexing-type Cu, Mo deposits in other areas except for Xiaoyao area.