摘要
本文通过绿春马玉岩体岩石学、地球化学研究,认为岩体岩浆来源为地壳和地幔相互混合作用的产物,形成于碰撞前和同碰撞岛弧环境;岩体LA-ICP-MS锆石U-Pb年龄263.6Ma,揭示金沙江-哀牢山结合带在263.6Ma已经进入了弧陆碰撞的地质历史时期。
In this paper,we think the magma of rock body derived from the mixture of crust and mantle each other before collision and in syn-collision island arc environment;LA-ICP-MS zircon U-Pb age of rock body 263.6Ma,showing Jinshajiang-Ailaoshan conjunction zone is in the arc-land collision history period then.
作者
吕佳
杨钦淞
易邦进
唐骥
李凌杰
LU Jia;YANG Qin-song;YI Bang-jin;TANG Ji;LI Ling-ie(Yunnan Institute of Geoscience,Kunming 650051;Yunnan Exploration Design Institute of Geological Engineering Company(Ltd),Kunming 650200;Kunming University of Science and Technology,Kunming 650504)
出处
《云南地质》
2022年第2期137-146,共10页
Yunnan Geology
