| 吉林延边杜荒岭金矿流体包裹体特征与矿床成因 |
| |
| 引用本文： | 王长兵,陈跃军,张宇峰,吴涛涛,刘永俊,朱怀亮,王雄,刘雪松,吴国学.吉林延边杜荒岭金矿流体包裹体特征与矿床成因[J].世界地质,2013,32(4):717-724. |
| |
| 作者姓名： | 王长兵 陈跃军 张宇峰 吴涛涛 刘永俊 朱怀亮 王雄 刘雪松 吴国学 |
| |
| 作者单位： | 1. 吉林大学地球科学学院，长春130061; 2. 吉林大学古生物学与地层学研究中心，长春130026; 3. 内蒙古自治区地质调查院，呼和浩特010020; 4. 沈阳地质调查中心，沈阳110034; 5. 吉林大学地质博物馆，长春130026 |
| |
| 基金项目： | 吉林省汪清县杜荒岭-砂金沟-带金铜成矿规律研究（HJ2012-1） |
| |
| 摘 要： | 杜荒岭金矿床是产于石英闪长岩、受压性、压扭性断裂和爆破角砾岩筒联合控制的浅成中温岩浆热液矿床。流体包裹体研究表明: ①流体包裹体的类型以气液两相包裹体为主，其次为纯液相包裹体、气相包裹体及少量含NaCl 子矿物三相原生流体包裹体，成矿流体属NaCl--H2O 体系; ②主成矿阶段均一温度为200℃ ～ 375℃，集中在230℃ ～ 320℃; 流体具有低密度( 0. 68 ～ 0. 94 g /cm3 ) ，低盐度 ( 3. 39 ～ 13. 07 ( wt%，NaCl) ) 的特征，成矿压力为7. 5 ～ 14. 3 MPa，估算成矿深度1. 2 ～ 1. 6 km; ③ 结合新近同位素、微量元素及年代学研究成果，认为杜荒岭金矿主要与晚燕山期岩浆活动有关，成矿流体源于岩浆热液，流体上升过程中发生隐爆和沸腾作用，同时伴有部分大气降水加入，导致成矿物质快速沉淀富集。
|
| 关 键 词： | 流体包裹体 矿床成因 杜荒岭金矿 延边地区 |
Characteristics of fluid inclusion and implications for ore genesis of Duhuangling gold deposit in Yanbian area,Jilin |
| |
| WANG Chang-bing CHEN Yue-jun ZHANG Yu-feng WU Tao-tao LIU Yong-jun ZHU Huai-liang,WANG Xiong,LIU Xue-song,WU Guo-xue.Characteristics of fluid inclusion and implications for ore genesis of Duhuangling gold deposit in Yanbian area,Jilin[J].World Geology,2013,32(4):717-724. |
| |
| Authors: | WANG Chang-bing CHEN Yue-jun ZHANG Yu-feng WU Tao-tao LIU Yong-jun ZHU Huai-liang WANG Xiong LIU Xue-song WU Guo-xue |
| |
| Institution: | 1. College of Earth Sciences，Jilin University，Changchun 130061，China; 2. Ｒesearch Center of Palaeontology ＆ Straigraphy，Jilin University，Changchun 130026，China; 3. Institute of Geological Survey of Inner Mongolia Autonomous Ｒegion，Huhhot 010020，China; 4. Shenyang Institute of Geology and Mineral Ｒesources，Shenyang 110034，China; 5. Museum of Geology，Jilin University，Changchun 130026，China |
| |
| Abstract: | Duhuangling gold deposit formed in the quartz diorite, is a hypabyssal medium temperature magmatic hydrothermal deposit, which is controlled by both compressive and compress-shear fault and crypto-explosive breccia cone. The study of fluid inclusion shows that ： ① the type of the fluid inclusion is mainly gas-liquid biphase inclusions, associated with some pure liquid inclusions and pure volatile inclusions, and a few NaCl minerals-bear-ing polyphase inclusions, with the ore-forming fluid belonging to H20-NaCl system. （~）The homogenization temper- ature of the fluid inclusion at the major merallogenic stage ranges from 200℃ to 375℃, concentrating on 230 320℃. The fluid is characterized by low density （0. 68 - 0. 94 g/cm^3） and low salinity （3.39 - 13.07 % NaCl eqv）. The ore-forming pressure is 7.5 - 14. 3 MPa, and the estimated metallogenic depth is 1.2 - 1.6 km. ③ Combined with the recent progress in study as isotopic, trace element and metallogenic chronology, the authors sug- gest that the Duhuangling gold deposit was related to late Yanshannian magmatic activity, and the ore-forming fluids were mainly derived from magmatic hydrothermal fluids. Concealed explosion and boiling occurred during their as- cending process along with the participation of meteoric water, resulting in a rapid deposition and enrichment of metallogenie material. |
| |
| Keywords: | fluid inclusion genesis of deposit Duhuangling gold deposit Yanbian area |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《世界地质》浏览原始摘要信息 |
| 点击此处可从《世界地质》下载免费的PDF全文 |
