资源调查与环境2012，Vol.33Issue(1)：16-21,6.
新疆阿尔泰成矿带可可塔勒花岗岩体锆石LA-ICP-MSU-Pb年龄及其地质意义
LA-ICP-MS zircon U-Pb age of Keketale granite body in Altay metallogenic belt, Xinjiang, and its geological implications
摘要
Abstract
A great number of granites that widely exposed in Altay metallogenic belt, Xmjlang, are closely related to mineralizations, especially, the magmatic activity with an age about 400Ma is an important magmatic mineralization event in Altay region, and many metal deposits are closely related with the magmatism-tec- tonism happened during this period in the region. This paper studies on the Keketale biotite granite body outcropped in Keketale lead-zinc mineral district. The granite body yields a LA-1CP-MS zircon U-Pb age of 401.8 士 1.5 Ma, which means that the Keketale granite body is the product of an important magma tism ectonism happened in the period about 400 Ma in Altay metallogenic belt. The biotite granite body intruded into the volcanic strata of lower Devonian Kangbutiebao group, and there are obvious alterations of wall-rocks shown in the contact zone between the granite body and wall rocks. The intrusion of the bi- otite granite body and its magmatic thermal activity might contribute to activation, migration, concentra- tion and mineralization of the metallogenic materials in this area.关键词
阿尔泰成矿带/可可塔勒/黑云母花岗岩/锆石LA-ICP-MS/U-Pb年龄/新疆Key words
Altay metallogenic belt/Keketale/biotite granite/LA-ICP-MS zircon U-Pb age/Xinjiang分类
地质学引用本文复制引用
董永观,张传林,周刚,丁汝福,邢怀学,余明刚,高卫华..新疆阿尔泰成矿带可可塔勒花岗岩体锆石LA-ICP-MSU-Pb年龄及其地质意义[J].资源调查与环境,2012,33(1):16-21,6.基金项目
国家“十二·五”科技支撑项目（编号2011BAB06803-01）的郡分成果. （）
