COMPARISON OF ELA-ICP-MS AND SHRIMP U-PB ZIRCON AGES OF THE CHONGJIANG AND QULONG ORE-BEARING PORPHYRIES IN THE GANGDESE PORPHYRY COPPER BELT

• 冈底斯斑岩铜矿带冲江及驱龙含矿斑岩体锆石ELA-ICP-MS及SHRIMP定年对比研究