九龙地区花岗岩地质特征及铀成矿条件  

Geological Features of Granitoid Intrusive and Its Uranium Ore-Formation in the Jiulong Region

作　　者：姚孟辰 徐争启[1,3] 尹明辉 YAO Meng-chen;XU Zheng-qi;YIN Ming-hui(College of Earth Sciences,Chengdu University of Technology,Chengdu 610059;Sichuan Communications Construction Group Co.,Ltd.Chengdu 610000;Sichuan provincial key laboratory of geological nuclear technology,Chengdu 610059)

机构地区：[1]成都理工大学地球科学学院,成都610059 [2]四川省交通建设集团股份有限公司,成都610000 [3]地学核技术四川省重点实验室,成都610059

出　　处：《四川地质学报》2022年第1期65-70,80,共7页Acta Geologica Sichuan

摘　　要：九龙地区位于四川西部地区,大地构造位置属三江弧盆系和巴颜喀拉地块,构造活动较为强烈,岩浆活动频繁,具有多期次、多阶段的特点。该地区的岩体主要岩性有石英闪长岩、花岗闪长岩、二长花岗岩以及黑云正长花岗岩等,其中,以九龙县城以北的放马坪-三岩龙花岗岩体和兰尼巴花岗岩体含铀性最好。本文从区域地质背景、地球化学特征、侵入岩特征,典型岩体地质特征、岩体含铀性、控矿构造等方面,对九龙放马坪-兰尼巴一带花岗岩特征及铀成矿条件进行了分析。The Jiulong region in west Sichuan lies in the Sanjiang arc-basin system and the Bayan Har block which is characterized by multiple strong tectonism and magmatic activity.Granitoid intrusive in the studied region consists of quartz diorite,granodiorite,monzogranite and biotite syenogranite.The Fangmaping-Sanyanlong granitoid intrusive and the Lanniba granitoid intrusive are the best uranium-bearing ones.This paper deals with characteristics uranium-bearing property of granitoid in the Fangmaping-Lanniba zone.

关 键 词：九龙地区 花岗岩 含铀性 地质特征 铀成矿条件 

分 类 号：P584[天文地球—岩石学] P612[天文地球—地质学]