矿床地质2009，Vol.28Issue(4)：425-433,9.
新疆青河玉勒肯哈腊苏铜矿区酸性岩锆石U-Pb法定年及其地质意义
U-Pb dating of zircons from acid intrusions in Yulekenhalasu copper deposit of Qinghe, Xinjiang, and its geological significance
摘要
Abstract
Located in the western part of the southern Mongolia copper belt, Halasu area in Qinghe County of Xinjiang is an important and interesting area for copper ore survey and research. Yulekenhalasu is a newly found copper deposit in this area. The authors dated the zircons from the mineralized porphyritic granite and quartz-monzonite porphyry in this deposit by using the LA-ICP-MS U-Pb dating method. The results show that the two ore-bearing intrusions were emplaced in Middle Devonian and Early Permian, respectively. Both of these two stages of magmatism produced porphyry-type copper mineralization, with the former intrusion in Middle Devonian being the main ore-forming stage, whereas the latter one in Early Permian resulting in complex mineralization. There also occurred the superimposition of mineralization-alteration caused by tectonic-magmatic-hydrothermal activities in Middle-Late Triassic. Complex and superimposed copper mineralizations have been well dated. This paper provides some new facts for understanding the genesis and exploration direction of copper ore deposits in this area.关键词
地球化学/铜矿床/LA-ICP-MS/锆石U-Pb法定年/中酸性岩/成矿时代/玉勒肯哈腊苏Key words
geochemistry/ copper deposit/ LA-ICP-MS/ zircon U-Pb dating/ intermediate-acid intrusion/ epoch of mineralization/ Yulekenhalasu分类
天文与地球科学引用本文复制引用
赵战锋,薛春纪,张立武,温长顺,周刚,刘国仁..新疆青河玉勒肯哈腊苏铜矿区酸性岩锆石U-Pb法定年及其地质意义[J].矿床地质,2009,28(4):425-433,9.基金项目
本文得到国家"十一五"科技支撑计划项目(2006BAB07801-02)、高等学校学科创新引智计划项目(B07011)、长江学者和创新团队发展计划项目(IRT0755)、地质过程与矿产资源国家重点实验室开放基金(GPMR0745)的联合资助 （2006BAB07801-02）
