蒙古国戈壁阿尔泰地区Togrog花岗杂岩体LA-ICP-MS锆石U-Pb年龄报道  

LA-ICP-MS Zircon U-Pb dating of Togrog granite complex in Gobi-Altay area,Mongolia

作　　者：付超 冯启伟 李俊建 党智财 唐文龙 Orolmaa Demberel FU Chao;FENG Qiwei;LI Junjian;DANG Zhicai;TANG Wenlong;Orolmaa Demberel(No1 Geological Team of ShanDong Provincial Bureau of Geology and Mineral Resources,Jinan 250014,China;Tianjin Center,China Geological Survey(North China Center for Geoscience Innovation),Tianjin 300170,China;Institute of Geology,Mongolian Academy of Sciences,Ulaanbaatar 999097,Mongolia)

机构地区：[1]山东省第一地质矿产勘查院,济南250014 [2]中国地质调查局天津地质调查中心(华北地质科技创新中心),天津300170 [3]蒙古科学院地质研究所,乌兰巴托999097

出　　处：《华北地质》2024年第1期104-108,共5页North China Geology

基　　金：国家重点研发计划项目“蒙古晚古生代岩浆活动与铜(金钼银)成矿作用”(2022YFE0119900);山东省第一地质矿产勘查院开放基金“山东齐河-禹城地区矽卡岩型富铁矿深部流体演化与成矿机制(2021DW03)”。

摘　　要：蒙古戈壁阿尔泰地区Togrog花岗杂岩体主要由花岗闪长岩和二长花岗岩组成。本文报道了Togrog花岗杂岩LA-ICP-MS锆石U-Pb年龄为315.2~300.5 Ma,属于晚石炭世,形成于板块碰撞后伸展环境,反映了南戈壁−阿尔泰构造带华力西期典型的中-酸性岩浆活动特征。The Togrog granite complex in Gobi-Altay area of Mongolia is mainly composed of granodiorite and diorite.This paper reports that the zircon LA-ICP-MS U-Pb ages of the Togrog granite complex range from 315.2 Ma to 300.5 Ma,belonging to the Late Carboniferous period.The Togrog granite complex is formed in an extensional environment after plate collision,displaying typical characteristics of intermediate acidic magma during the Variscan movement in Gobi-Altay area,Mongolia.

关 键 词：蒙古国 戈壁阿尔泰 花岗杂岩体 锆石U-PB年龄 

分 类 号：P618.13[天文地球—矿床学]