帮助 关于我们

返回检索结果

钦杭带南段庞西垌- 金山银金矿田控矿构造分析及找矿指示
Ore - controlling structure analysis of Pangxidong - Jinshan silver - gold orefield, southern Qin - Hang belt: Implications for furthern exploration

查看参考文献35篇

林振文 1   周永章 2 *   秦艳 3   郑义 2   梁志鹏 2   邹和平 2   牛佳 2  
文摘 钦杭成矿带南段的庞西垌-金山银金矿田位于粤东与桂西交界处,包括庞西垌、金山、中苏、竹根坡、高村等银金矿床及一系列银金矿点,是20世纪80年代规划的十大银矿基地之一。庞西垌地区经历了多期的构造-岩浆活动,韧性剪切带和断裂构造尤其发育。印支期以来,可识别出3期主要构造:第一期为右行韧性剪切,前人利用糜棱岩中白云母测得时代为221 Ma;第二期为左行韧脆性剪切,北东向的庞西垌-金山断裂带反映最为突出,切过燕山晚期花岗岩;第三期为脆性走滑。银金矿体及矿石结构、构造主要受第二期左行韧脆性剪切带控制。应用里德尔剪切体系对控矿构造的分布特征分析显示,银金矿脉主要赋存于里德尔体系的D、R和T裂隙中;D裂隙是最重要的赋矿构造,热液蚀变岩型和石英脉型矿体呈透镜状左行斜列于主断裂面中,沿走向往南西侧伏;R和T裂隙主要发育梳状含金石英脉。R裂隙呈密集剪破裂产出,与主断裂面夹角15° ~ 35°;T裂隙呈雁列状等距分布,与主断裂面夹角约为45°。这些矿脉就位体系,可以为该区进一步找矿作参考。
其他语种文摘 The Pangxidong - Jinshan silver - gold ore - field is located in Guangdong - Guangxi border area,belonging to the southern part of the Southern Qin - Hang belt. It consists of Pangxidong,Jinshan,Zhongsu,Zhugenpo,Gaocun silver - gold deposits and some other ore spots and was among the top ten planning silver ore concentration areas of China in the 1980s. The Pangxidong area has well developed ductile shearing zone and fractures due to multiphase tectonic - magmatic evolution. At least three stages of deformation can be identified since Indosinian. The first stage is dextral ductile shearing at 221 Ma dated by phengite in mylonite. The second stage is the sinistral ductile- brittle shearing that cut the late Yenshanian granites,characterized by NE - trending Pangxidong - Jinshan fault. The last stage is brittle fault. Recent studies suggest that the Pangxidong - Jinshan fault zone,a regional NE- SW - trending structure formed during the second stage,played an essential role in the formation and localization of the fault - hosted silver - gold veins systems. Regional sinistral ductile - brittle shearing of the Pangxidong - Jinshan fault zone controlled the general occurrences and orientations of lodes and veins,and constrained the development of the internal structures,geometric details and final localization of lodes and veins. Therefore,the development and final localization of the silver - gold system can be comprehensively recognized in terms of both the Riedel shear system theory and the effects of the regional progressive deformation of sinistral ductile - brittle shearing, which may guide the further ore prospecting work in future. The D fracture is the most important ore - bearing structure. The lodes and veins belong to D fracture range lenticular sinistral en echelon in the main fracture. The R fracture and T fracture with en echelon arrangement mainly contain auriferous quartz veins. The R fracture shows intensive shear fractures output,with an angle of 15° ~ 35° to the main fracture. T fracture shows nearly equidistant distribution,with an angle of 45° to the main fracture.
来源 矿床地质 ,2017,36(4):866-878 【核心库】
DOI 10.16111/j.0258-7106.2017.04.005
关键词 地质学 ; 银- 金矿 ; 控矿构造 ; 韧脆性剪切 ; 钦杭带 ; 里德尔剪切
地址

1. 中山大学地球科学与地质工程学院, 中国科学院矿物学与成矿学重点实验室, 广东, 广州, 510275  

2. 中山大学地球科学与地质工程学院, 广东, 广州, 510275  

3. 中国科学院广州地球化学研究所, 中国科学院矿物学与成矿学重点实验室, 广东, 广州, 510640

语种 中文
文献类型 研究性论文
ISSN 0258-7106
学科 地质学
基金 国家自然科学基金 ;  中国科学院矿物与成矿重点实验室开放基金 ;  国土资源部中国地质调查局项目
文献收藏号 CSCD:6058513

参考文献 共 35 共2页

1.  Gilder S A. Isotopic and paleomagnetic constraints on the Mesozoic tectonic evolution of South China. Journal of Geophysical Research Solid Earth,1996,101(B7):16137-16154 被引 313    
2.  Riedel W. Zur Mechanik Geologischer, Brucher-scheinungen. Zent. Mineral. Geol. Paleont,1929:354-368 被引 1    
3.  Wang Y J. Kwangsian crustal anatexis within the eastern South China Block: Geochemical, zircon U-Pb geochronological and Hf isotopic fingerprints from the gneissoid granites of Wugong and Wuyi-Yunkai Domains. Lithos,2011,127:239-260 被引 88    
4.  Wang Y J. Phanerozoic tectonics of the South China Block: Key observations and controversies. Gondwana Research,2013,23:1273-1305 被引 248    
5.  Zhang A M. Earliest Neoproterozoic (ca. 1. 0 Ga) arc-back-arc basin nature along the northern Yunkai Domain of the Cathaysia Block: Geochronological and geochemical evidence from the metabasite. Precambrian Research,2012,220:217-233 被引 40    
6.  Zhang K J. NE-SW-trending Hepu-Hetai dextral shear zone in southern China Penetration of the Yunkai Promontory of South China into Indochina. Journal of Structural Geology,2009,31:737-748 被引 26    
7.  Zheng Y. A fluid inclusion study of the Hetai goldfield in the Qinzhou Bay-Hangzhou Bay metallogenic belt, South China. Ore Geology Reviews,2015 被引 1    
8.  蔡新建. 广东河台右旋韧性剪切带及其对金矿的控制. 地质论评,2012,58(6):1069-10180 被引 1    
9.  陈辉琪. 广东省廉江县庞西垌银金矿床地质特征及成矿规律研究报告. 内部报告,1985:159 被引 1    
10.  陈辉琪. 广东庞西垌银金矿床地质特征. 广东地质,1987,2(2):93-108 被引 7    
11.  陈均淮. 广西博白县中苏金银矿区详查地质报告. 内部资料,1986:98 被引 1    
12.  丁汝鑫. 钦-杭结合带南段韧性剪切带印支期活动记录:以防城-灵山断裂带为例. 地学前缘,2015,22(2):79-85 被引 10    
13.  刘腾飞. 广西金山金银矿床地质特征及富集规律. 黄金,1990,11(8):1-7 被引 3    
14.  吕文超. 钦杭结合带南段文地地区银金多金属矿床成矿条件及成矿预测研究. 博士学位论文,2013:1-180 被引 1    
15.  毛景文. 华南地区钦杭成矿带地质特征和矿床时空分布规律. 地质学报,2011,85(5):636-658 被引 275    
16.  彭松柏. 云开地区新元古代蛇绿岩的地球化学证据及其构造意义. 地质学报,2006,80(6):814-825 被引 32    
17.  钱建平. 广西金山金银矿区成矿构造分析和构造地球化学找矿. 现代地质,2011,25(3):531-544 被引 13    
18.  覃小锋. 广西云开地区元古代不整合事件的确定及其构造意义. 现代地质,2007,21(1):22-30 被引 6    
19.  覃小锋. 两广交界地区壶垌片麻状复式岩体的年代学和地球化学:对云开地块北缘早古生代构造-岩浆作用的启示. 岩石学报,2013,29(9):3115-3130 被引 27    
20.  水涛. 中国东南大陆基底构造格局. 中国科学(B辑),1987,4:414-422 被引 90    
引证文献 4

1 余晓彤 粤西庞西垌地区银金地球化学异常信息挖掘与提取 地质与勘探,2019,55(1):77-86
被引 4

2 王堃屹 推荐系统算法在钦杭成矿带南段文地幅矿床预测中的应用 地学前缘,2019,26(4):131-137
被引 3

显示所有4篇文献

论文科学数据集
PlumX Metrics
相关文献

 作者相关
 关键词相关
 参考文献相关

版权所有 ©2008 中国科学院文献情报中心 制作维护:中国科学院文献情报中心
地址:北京中关村北四环西路33号 邮政编码:100190 联系电话:(010)82627496 E-mail:cscd@mail.las.ac.cn 京ICP备05002861号-4 | 京公网安备11010802043238号