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| 沽源-红山子地区中生代火山作用与铀成矿关系 | |
| 引用本文： | 吴仁贵,于振清,申科峰,姜山,徐喆.沽源-红山子地区中生代火山作用与铀成矿关系[J].铀矿地质,2011,27(4):200-205. |
| 作者姓名： | 吴仁贵 于振清 申科峰 姜山 徐喆 |
| 作者单位： | 1. 东华理工大学,江西抚州,344000 2. 核工业243大队,内蒙古赤峰,024000 3. 核工业208大队,内蒙古包头,014000 |
| 基金项目： | 中国中新生代铀成矿作用(核科技项目)，内蒙古中部地区火山岩型铀矿成矿规律与成矿远景研究(2008～2009)。 |
| 摘 要： | 根据沽源-红山子地段中生代火山作用的时间,火山岩的主量元素、微量元素、稀土元素构成等特点,笔者将区内火山活动划分为早白垩世早期和早白垩世晚期两个旋回,将火山岩划分为以粗面质岩石为主的碱性系列和以流纹质岩石为主的亚碱性系列。本区中生代岩浆作用与铀成矿的关系主要表现在：（1）铀成矿受多岩浆系列共存地段控制;（2）铀成矿受晚期岩浆旋回的超浅成酸性斑岩体控制;（3）与铀成矿密切的斑岩体表现为壳幔作用的成因特点;（4）成矿火山岩表现出高硅和高钾的化学成分特点。 |
| 关 键 词： | 斑岩体 铀成矿 中生代岩浆作用 岩浆系列 |
The relational of Mesozoic volcanism to uranium mineralization in Guyuan-Hongshan zi area |
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| WU Ren-gui,YU Zhen-qing,SHEN Ke-feng,JIANG Shan,XU Zhe.The relational of Mesozoic volcanism to uranium mineralization in Guyuan-Hongshan zi area[J].Uranium Geology,2011,27(4):200-205. | |
| Authors: | WU Ren-gui YU Zhen-qing SHEN Ke-feng JIANG Shan XU Zhe |
| Institution: | WU Ren-gui1,YU Zhen-qing2,SHEN Ke-feng3,JIANG Shan2,XU Zhe1(1.East China Institute of Technology,Fuzhou,Jiangxi 344000,China,2.Geologic Party No.243,CNNC,Chifeng,Inner Mongolia 024000,3.Geologic Party No.208,Baotou,Inner Mongolia 014000,China) |
| Abstract: | Based on the time of Mesozoic volcanism,the characteristic of major and trace element,and REE pattern of the volcanic rocks in Guyuan-Hongshanzi area,The Mesozoic volcanism can be divided into the early cycle and later cycle during the Early Cretaceous,and it′s magma series is classified in two sub-series,one is alkaline series of trachyte dominated and another is subalkaline series of rhyolite dominated.The relations between Mesozoic volcanism and uranium mineralization is mainly shown in four aspects：（1） Uranium mineralization controlled by the coexist of two magma series;（2） Uranium mineralization controlled by superhypabyssal porphyry body in later cycle volcanism during the Early Cretaceous;（3） The porphyry body close to uranium mineralization,bearing the genesis characteristics of crust-mantle action;and（4） High Si and K content in the chemical composition of the mineralization volcanic rocks. |
| Keywords: | porphyry body uranium mineralization Mesozoic volcanism magma series |
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