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新疆包古图Ⅲ号岩体岩石学和锆石SHRIMP年代学研究
引用本文:魏少妮,程军峰,喻达兵,郑波,朱永峰.新疆包古图Ⅲ号岩体岩石学和锆石SHRIMP年代学研究[J].地学前缘,2011,18(2):212-222.
作者姓名:魏少妮  程军峰  喻达兵  郑波  朱永峰
作者单位:魏少妮,程军峰,喻达兵,朱永峰,Wei Shaoni,Cheng Junfeng,Yu Dabing,Zhu Yongfeng(造山带与地壳演化教育部重点实验室,北京大学,地球与空间科学学院,北京,100871);郑波,Zheng Bo(造山带与地壳演化教育部重点实验室,北京大学,地球与空间科学学院,北京,100871;造山带与地壳演化教育部重点实验室,北京大学,地球与空间科学学院,北京,100871)
摘    要:野外地质观测表明,包古图Ⅲ号岩体由两部分组成(北部的Ⅲ-1和南部的Ⅲ-2),Ⅲ-1的岩性为花岗闪长岩和石英闪长岩,Ⅲ-2的岩性为石英闪长岩、闪长岩和少量辉石闪长岩.挑选Ⅲ-1岩体中部新鲜石英闪长岩样品,测得其锆石SHRIMP年龄为(313±3)Ma.包古图Ⅰ、Ⅱ、Ⅲ-1、Ⅳ、Ⅴ号岩体具有相似的形成时间,集中在310~3...

关 键 词:石英闪长岩  SHRIMP年龄  包古图  西准噶尔  新疆

Petrology and SHRIMP zircon ages of intrusive body Ⅲ in Baogutu Area, Xinjiang
Wei Shaoni,Cheng Junfeng,Yu Dabing,Zheng Bo,Zhu Yongfeng.Petrology and SHRIMP zircon ages of intrusive body Ⅲ in Baogutu Area, Xinjiang[J].Earth Science Frontiers,2011,18(2):212-222.
Authors:Wei Shaoni  Cheng Junfeng  Yu Dabing  Zheng Bo  Zhu Yongfeng
Institution:1.Key Laboratory of Orogenic Belts and Crustal Evolution,Ministry of Education;School of Earth and Space Science,Peking University,Beijing 100871,China 2.No.8 Gold Geological Party of Chinese People’s Armed Police Force,rümqi 830057,China
Abstract:The intrusive body Ⅲ in the Baogutu area is composed of two separate parts(Ⅲ-1 in north and Ⅲ-2 in south).The lithologic units in Ⅲ-1 are granodiorite and quartz diorite and those in Ⅲ-2 are quartz diorite,diorite and a small amount of pyroxene diorite.A fresh quartz diorite sample from the central part of Ⅲ-1 was dated to 313±3 Ma by zircon SHRIMP.Intrusive body Ⅰ,Ⅱ,Ⅲ-1,Ⅳ and Ⅴ were formed during 310-325 Ma.The copper mineralization occurred in 316-310 Ma.
Keywords:quartz diorite  SHRIMP age  Baogutu  West Junggar  Xinjiang
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