地质通报2017，Vol.36Issue(7)：1158-1168,11.
东昆仑哈日扎多金属矿区花岗斑岩与闪长岩LA-ICP-MS锆石U-Pb年龄及其地质意义
LA-ICP-MS zircon U-Pb age and geological significance of granite porphyry and diorite in the Harizha polymetallic ore district, East Kunlun Mountains
摘要
Abstract
The Harizha ore district has multiple periods of mineralization and the ore-forming parent rocks are granite porphyry, dio?rite and granite The authors obtained three zircon LA-ICP-MS U-Pb ages from diorite and granite porphyry. Samples TC 22-3, DK19-1 and DK23-1 are dioritic granite porphyry and granite porphyry respectively. Sample TC22-3, DK19-1 and DK23-1 have the ages of 424.7±4.8Ma, 242.6±2.6Ma and 245.8±3.4Ma, respectively. Sample DK19-1 and DK23-1 ages belong to Indosinian pe?riod and reflect large-scale magmatic activities and also indicate major metallogenic chronology of the Harizha ore district. Sample TC22-3 records the Early Paleozoic magmatic events in the East Kunlun Mountains and can also explain the existence of the Silurian mineralization. The other Late Silurian granite was related to the collision orogenesis after closing of the Early Paleozoic ocean basin.关键词
LA-ICP-MS锆石U-Pb定年/构造-岩浆活动/成矿作用/东昆仑Key words
LA-ICP-MS zircon U-Pb dating/tectonic-magmatic activity/mineralization/East Kunlun Mountains分类
天文与地球科学引用本文复制引用
王小龙,袁万明,冯星,冯云磊,程学芹..东昆仑哈日扎多金属矿区花岗斑岩与闪长岩LA-ICP-MS锆石U-Pb年龄及其地质意义[J].地质通报,2017,36(7):1158-1168,11.基金项目
国家重点基础研究发展规划项目《复合成矿系统理论体系与深部驱动机制》(编号:2015CB452606)、《中国西南特提斯典型复合成矿系统及其深部驱动机制》(编号:2015CB452600)和国家自然科学基金项目《吉林省夹皮沟金矿带矿床保存变化与隆升剥露》(批准号:41172088) （编号:2015CB452606）
