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| 苏丹北部拜尤达地区金矿地质特征及找矿远景 | |
| 引用本文： | 李杰,倪师军,李世勇,张成江,杨立新.苏丹北部拜尤达地区金矿地质特征及找矿远景[J].地质找矿论丛,2012,27(2):214-221. |
| 作者姓名： | 李杰 倪师军 李世勇 张成江 杨立新 |
| 作者单位： | 1. 成都理工大学核技术与自动化工程学院,成都610059;山东省第六地质矿产勘查院,山东威海264209 2. 成都理工大学核技术与自动化工程学院,成都,610059 3. 山东省物探化探勘查院,济南,250013 4. 成都理工大学地球科学学院,成都,610059 5. 山东省第六地质矿产勘查院,山东威海,264209 |
| 基金项目： | 国土资源部境外矿产资源风险勘查基金项目 |
| 摘 要： | 苏丹拜尤达地区位于苏丹北部尼罗河州,区内已圈定1处中型金矿床,7处金矿找矿靶区.根据拜尤达地区金矿成矿地质条件及哈佳吉中型金矿床的地质特征、矿石和围岩的微量元素地球化学特征,将金矿床成矿过程分为热液期、表生氧化期和风化沉积期.认为该地区金矿为受区域韧性剪切带控制的中温浅成变质热液矿床,属造山型金矿.成矿物质主要来源于前寒武系变质岩,造山作用引起构造—岩浆活动,区域变质作用造成流体的活化,并萃取围岩中的成矿物质,最终在构造有利部位富集形成金矿床. |
| 关 键 词： | 哈佳吉金矿 造山型金矿 韧性剪切带 前寒武系 苏丹拜尤达地区 |
| 收稿时间： | 2011/11/8 0:00:00 |
| 修稿时间： | 2012/3/13 0:00:00 |
The geologic characteristics and exploration potential of gold deposit in Bayuda area, north Sudan |
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| LI Jie,NI Shi-jun,LI Shi-yong,ZHANG Cheng-jiang and YANG Li-xin.The geologic characteristics and exploration potential of gold deposit in Bayuda area, north Sudan[J].Contributions to Geology and Mineral Resources Research,2012,27(2):214-221. | |
| Authors: | LI Jie NI Shi-jun LI Shi-yong ZHANG Cheng-jiang and YANG Li-xin |
| Institution: | 1.College of Applied Nuclear Technology and Automation Engineering, Chengdu University of Technology,Chengdu 610059,China; 2.The 6th Geology and Mineral Resources Survey Institution in Shandong Province,Weihai 264209,Shandong,China; 3.Geophysics and Geochemistry Research Institute in Shandong Province,Jinan 250013,China; 4.College of Earth Sciences,Chengdu University of Technology,Chengdu 610059,China) |
| Abstract: | The Bayuda area is located in Nile River State,north Sudan,in which one medium-sized gold deposit and seven exploration targets are located recently.This paper mainly deals with the geological conditions of gold deposits in Bayuda area,and the geochemical characters of ore and wall-rock of Hagagia gold deposit.The ore-forming process is divided into the hydrothermal,supergene weathering-sedimentary stages.The authors consider that the gold deposit in Bayuda area is formed by meso-epithermal metamorphic fluid and controlled by ductile shear zone and classified into orogenic-type gold deposit.The Proterozoic metamorphic rocks supply ore materials.Orogenesis causes tectonomagmatism.Regional metamorphism mobilizes hydrothermal fluid which extracts ore elements from the country rock and deposited the elements at favorable tectononic space. |
| Keywords: | Hagagia gold deposit orogenic-type gold deposit ductile shear zone Precambrian Bayuda area of Sudan |
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