岩矿测试2012，Vol.31Issue(3)：549-553,5.
赣南兴国杨村岩体锆石U - Pb年龄测定及其地质意义
Zircon U-Pb Age Dating for the Yangcun Granite Masses from South Jiangxi Province and Its Geological Significance
摘要
Abstract
The Yangcun granite mass is located northeast of Nanling and Xingguo country of the South Jiangxi area. It intrudes into metamorphosed rocks of Precambrian basement, and is adjacent to Cretaceous Sandstone and conglomerate at its west side with a fault. The forming time of this granite masses is difficult to judge correctly by its contact relations, and it was previously assigned to the Caledonian period. In this paper, we give a U-Pb age of (175. 8 ±1.0) Ma of zircon by Laser Ablation-Multicollector Inductively Coupled Plasma-Mass Spectrometry (LA-MC-ICPMS) dating technology, thus ascertaining this granite mass as an intrusion during the period between the first and second stage of the early Yanshanian, and this period is the onset period of extensive mineralization of tungsten and multi-metals in the Nanling area. Therefore, the determination of the geochronology of the Yangcun granite masses will provide new information for prospecting in the future.关键词
杨村岩体/LA-MC-ICPMS锆石U-Pb定年/燕山早期/大规模成矿作用Key words
Yangcun granite masses/ LA-MC-ICPMS zircon U-Pb dating/ early Yanshanian/ extensive mineralization period分类
天文与地球科学引用本文复制引用
侯可军,陈振宇,王登红,陈郑辉,赵正..赣南兴国杨村岩体锆石U - Pb年龄测定及其地质意义[J].岩矿测试,2012,31(3):549-553,5.基金项目
中国地质大调查项目“南岭地区岩浆岩成矿专属性研究”(1212011120989) （1212011120989）
“我国重要矿产和区域成矿规律研究”课题(1212010633903) （1212010633903）
国家深部探测技术与实验研究专项“南岭成矿带地壳岩浆系统结构探测实验”(SinoProbe 0301) （SinoProbe 0301）
“南岭于都—赣县矿集区立体探测技术与深部成矿预测示范”课题(201011048) （201011048）
危机矿山“赣南地区钨矿床成矿规律总结及高温热液成矿机制研究”课题(20089947) （20089947）
