2 . 38 . 6ma and 36 . 7ma isotopic ages of quartz - monzonite - porphyry in lianhuashan and alkaline porphyry in zhuopan have respectively been obtained . those results are consistent with the ages of the porphyries in both lanping - shimao basin and changdu basin related igneous rocks , representing the first episode ( lanping movement ) of tectonics - magmatism - metallogenic event during the himalayan movement 获得了莲花山石英二长斑岩及卓潘碱性斑岩的ar - ar年龄，分别为38 . 6ma与36 . 7ma ，与整个兰坪?思茅盆地与昌都盆地及两侧的斑岩与相关火山岩一致，代表喜马拉雅运动第一幕(兰坪运动)的重要构造?岩浆?成矿事件。
3.
In terms of their geological and geochemical characteristics as well as the ages of these plutons , these three sub - belts from south to north are interpreted as syn - subductional , syn - collisional and post - collisional plutons respectively . composed of quartz diorite and quartz monzonite , the syn - subduction plutonic rocks are confined only to the south kunlun massif 俯冲期侵入岩仅出露于蛇绿岩带之南的昆南地块上，岩性组合为石英闪长岩-石英二长岩，三个主要岩体获锆石u - pb年龄值为481ma 、 461ma 、 452ma ，均为奥陶纪。
4.
It is argued that the magmatic activities of quartz - monzonite - porphyry and alkaline porphyry presumably played an essential role in mineralization of this district , that is , the porphyry system could be important sources of both ore - forming metals and ore - forming fluids , as well as a thermal engine that drived cycling of metallogenic fluids 初步认为石英二长斑岩与碱性斑岩岩浆活动对本区成矿有重要作用，既是重要的矿源和流体来源，又是驱动成矿流体循环的主要热源。
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