img

QQ群聊

img

官方微信

高级检索

黄金科学技术 ›› 2014, Vol. 22 ›› Issue (2): 1-6.doi: 10.3969/j.issn.1005-2518.2014.02.001

• 矿产勘查与资源评价 •    下一篇

马达加斯加金矿床成因及找矿标志研究

杨喜安1,刘善宝1,赵宪东2   

  1. 1.中国地质科学院矿产资源研究所,北京   100037;
    2.山东正元地质勘查院,山东  烟台   264002
  • 收稿日期:2013-11-29 修回日期:2014-02-17 出版日期:2014-04-28 发布日期:2014-08-26
  • 作者简介:杨喜安(1972-),男,宁夏海原人,博士,从事矿床学研究工作.yangxianyantai@163.com
  • 基金资助:

    中国博士后科学基金项目“马达加斯加Maevatanana金矿床成因研究”(编号:2013M541000)和中国地质调查局地质大调查项目“全球巨型成矿带找矿勘查方法技术研究”(编号:12120113102100)联合资助.

Research on Genesis and Prospecting Indicators of Gold Deposits in Madagascar

YANG Xi’an1,LIU Shanbao1,ZHAO Xiandong2   

  1. 1.Institute of Mineral Resources,Chinese Academy of Geological Sciences,Beijing   100037,China;
    2.Shandong Zhengyuan Institute of Geological Exploration,Yantai   264002,Shandong,China
  • Received:2013-11-29 Revised:2014-02-17 Online:2014-04-28 Published:2014-08-26

摘要:

马达加斯加金矿床类型为石英脉型,金矿化包括含金石英脉及其两侧的矿化围岩,金矿体产在NNW向剪切带和EW向断层交会处。金成矿作用主要与泛非造山运动有关。在泛非造山期,马达加斯加发生了强烈的构造岩浆活动,地壳深部含金硅铝质岩发生部分熔融形成花岗质岩浆。花岗质岩浆从岩石中萃取成矿组分,形成含矿热液流体。沿断裂上升的热液流体与地下含矿热水混合,构成岩浆水与大气降水的混合成矿流体,这些成矿流体进入构造有利空间,充填和交代围岩,形成含金石英脉。

关键词: 金矿床, 泛非造山运动, 含金石英脉, 太古宙, 条带状铁建造, 绿岩带, 马达加斯加

Abstract:

The gold deposit in the Madagascar is a classical quartz vein type gold deposit,the gold mineralization developed in the quartz vein and its wall rock.The gold deposit is intersected by major NNW trending shear zones and east-trending fracture sets,gold mineralization is associated with Pan-African orogeny.In the Pan-African orogeny,there are intensive tectonic-magmatic in Madagascar,results partial melting of the lower crust,a large amount of fluids and granitic magma are formed.In the process of the ascent of the fluids,mixed shallow-sourced meteoric fluid,the ore-forming fluids would have entered the favourable faults,resulting in mineralization.

Key words: gold deposit, Pan-African orogeny, auriferous quartz veins, Archean, banded iron formation, greenstone belt, Madagascar

中图分类号: 

  • P618.51

[1] Collins A S,Razakamanana T,Windley B F.Neoproterozoic extensional detachment in central Madagascar:Implications for the collapse of the East African Orogen[J].Geological Magazine,2000,137(1):39-51.
[2] Collins A S,Windley B F.The tectonic evolution of central and northern Madagascar and its place in the final assembly of Gondwana[J].Journal of Geology,2002,110(3):325-340.
[3] Collins A S,Fitzsimons I C W,Hulscher B.Structure of the eastern margin of the East African Orogen in central Madagascar[J].Precambrian Research,2003,123(2):111-133.
[4] Cox R,Armstrong R A,Ashwal L D.Sedimentology,geochronology and provenance of the proterozoic itremo group,central Madagascar,and implications for pre-Gondwana palaeogeography[J].Journal of the Geological Society,1998,155(6):1009-1024.
[5] De Wit M J,Bowring S A,Ashwal L D,et al.Age and tectonic evolution of Neoproterozoic ductile shear zones in  southwestern Madagascar,with implications for Gondwana studies[J].Tectonics,2001,20(1):1-45.
[6] Fitzsimons I C W.A review of tectonic events in the East Antarctic Shield and their implications for Gondwana and earlier supercontinents[J].Journal of African Earth Sciences,2000,31(1):3-23.
[7] Handke  M  J,Tucker R D,Ashwal L D.Neoproterozoic continental arc magmatism in west-central Madagascar[J].Geology,1999,27(4):351-354.
[8] Hoffman P F.Did the breakout of Laurentia turn Gondwanaland inside-out[J].Science,1991,(5011):1409-1412.
[9] KronerA,Braun I,Jaeckel P.Zircon geochronology of anatecticmelts and residues from a highgrade pelitic assemblage at Ihosy,southern Madagascar:Evidence for Pan-African  granuulite metamorphism[J].Geological Magazine,1996,133(3):311-323.
[10] Randriamanantenasoa A F.E tude de la Serie de Maevatanana,Secteur Maevatanana et Environs,Nord-Ouest de Madagascar[M].Antananarivo:These Universite Antananarivo,1990.
[11] Rambolamanana G,Suhadolc P,Panza G F.Simultaneous inversion of hypocentral parameters and structure velocity of the central region of Madagascar as a premise for the mitigation of seismic hazard in Antananarivo[J].Pure and Applied Geophysics,1997,149(4):707-730.
[12] Rambeloson A R.Gold in Madagascar[J].Gondwana  Research,1999,2(3):423-431.
[13] Nawaratne S W,Dissanayake C B.Gold occurrences in Madagascar,south India and Sri Lanka:Significance of a possible Pan-African event[J].Gondwana Research,2001,4(3):367-375.
[14] Andrianjakavah P,Salvi S,Beziat D,et al.Textural and fluid inclusion constraints on the origin of the banded-iron-formation-hosted gold deposits at Maevatanana,central Madagascar[J].Miner Deposita,2007,42:385-398.
[15] Vinyu M L,Jelsma H A,Fei R.Timing between granitoid emplacement and associated gold mineralization:Examples from the ca.2.7 Ga Harare-Shamva greenstone belt,northern Zimbabwe[J].Canadian Journal of Earth Sciences,1996,33(7):981-992.
[16] Sarma D S,Mcnaughton N J,Fletcher I R,et al.Timing of gold mineralization in the Hutti gold deposit,Dharwar Craton,South India[J].Economic Geology,2008,103(8):1715-1727.
[17] Bjerkgard T,Stein H J,Bingen B,et al.The Niassa Gold Belt,northern Mozambique:A segment of a continental-scale Pan-African gold-bearing structure[J].Journal of African Earth Sciences,2009,53(1):45-58.
[18] Mishra B,Palb N,Sarbadhikari A B.Fluid inclusion characteristics of the Uti gold deposit,Hutti-Maski greenstone belt,southern India[J].Ore Geology Reviews,2005,(1):1-16.[19] Dubessy J,Derome D,Sausse J.Numerical modelling of fluid mixings in the H2O-NaCl system application to the Nort Caramal U prospect (Australia)[J].Chemical Geology,2003,194(1):25-39.
[20] Buchholz P,Herzig P,Friedrich G,et al.Granite-hosted gold mineralization in the Midlands greenstone belt:A new type of low-grade gold deposit in Zimbabwe[J].Mineralium Deposita,1998,33(5):437-460.
[21] Vos I M A,Bierlein F P,Standing J S,et al.The goology and mineralisation at the Golden Pride gold deposit,Nzega Greenstone Belt,Tanzania[J].Mineralium Deposita,2009,44(7):751-764.
[22] Boer R H,Meyer F M,Robb L J,et al.Mesothermal-type mineralizatioin in the Sabie-Pilgrim’s Rest gold field,South Africa[J].Economic Geology,1995,90(4):860-876.
[23] Kutina J.Tectonic development and metallogeny of Madagascar with reference to the fracture pattern of the Indian Ocean[J].Geological Society of Amarica Bulletin,1975,86(4):582-592.
[24] Lardeaux J M,Martelat J E,Nicollet C,et al.Metamorphism and tectonics in southern Madagascar:an overview[J]. Gondwana Research,1999,2(3):355-362.
[25] 杨喜安,赵国春,于虎,等.乳山金青顶、三甲、英格庄金矿成矿地质特征与找矿预测[J].黄金科学技术,2009,17(4):16-24.
[26] 杨喜安,刘善宝,李海松,等.马达加斯加Maevatanana地区金矿床研究进展[J].地质科技情报,2013,32(5):133-137.

[1] 袁梓焜, 邵拥军, 刘清泉, 张毓策, 王智琳. 湘东北万古金矿田江东金矿床成因——流体包裹体和H-O同位素制约[J]. 黄金科学技术, 2024, 32(4): 559-578.
[2] 俞炳, 丁正江, 陈伟军, 李肖, 刘彩杰, 薛建玲, 曾庆栋, 范宏瑞, 吴金检, 张琪彬. 胶东西岭金矿床黄铁矿热电性特征及深部找矿意义[J]. 黄金科学技术, 2024, 32(2): 207-219.
[3] 宋高瑞, 翟新伟, 王二腾, 武磊, 陈万峰, 郑菲菲, 王海东, 王金荣. 甘肃花牛山金矿床成矿流体性质及矿床成因[J]. 黄金科学技术, 2023, 31(6): 873-887.
[4] 单文法, 毛先成, 刘占坤, 邓浩, 陈进, 张维, 王海正, 杨鑫. 胶东大尹格庄金矿床成矿过程数值模拟及其找矿意义[J]. 黄金科学技术, 2023, 31(5): 707-720.
[5] 许方颖, 邹艳红, 易卓炜, 杨福强, 毛先成. 基于非均衡数据的ADASYN-CatBoost测井岩性智能识别——以胶西北招贤金矿床为例[J]. 黄金科学技术, 2023, 31(5): 721-735.
[6] 樊忠平, 张望, 王卫. 陕西省山阳—商南金矿成矿规律及找矿预测研究[J]. 黄金科学技术, 2023, 31(4): 560-579.
[7] 司建涛,白德胜,肖尊群,李水平,祁东,孙进. 坦桑尼亚盖塔绿岩带成矿地质特征和成矿时代[J]. 黄金科学技术, 2023, 31(3): 387-395.
[8] 吴华浩,邵拥军,刘清泉,王智琳,张毓策,袁梓焜. 湘东北正冲金矿床成因:年代学和硫同位素制约[J]. 黄金科学技术, 2023, 31(2): 190-205.
[9] 张勇,张爱奎,何书跃,刘智刚,刘永乐,张鹏,孙非非. 东昆仑祁漫塔格地区库德尔特金矿区花岗闪长岩的时代、成因及其构造意义[J]. 黄金科学技术, 2023, 31(1): 1-14.
[10] 寸小妮,薛玉山,王瑜亮,刘新伟. 陕西龙头沟金矿黄铁矿标型特征及其找矿意义[J]. 黄金科学技术, 2023, 31(1): 64-77.
[11] 李博文,谷华娟,李成禄,刘宝山,杨晓平. 黑龙江省三合屯金矿床地质特征及找矿潜力分析[J]. 黄金科学技术, 2022, 30(4): 508-517.
[12] 俞炳,邱海成,于昌明,曾庆栋,杜琴,叶杰,李建平,陈海涛. EH4音频大地电磁方法在辽东五龙金矿控矿构造及成矿预测研究中的应用[J]. 黄金科学技术, 2021, 29(5): 637-646.
[13] 丁书宏. 甘肃北山前红泉金矿床绢云母40Ar-39Ar年龄及其地质意义[J]. 黄金科学技术, 2021, 29(2): 173-183.
[14] 李松涛,刘建中,夏勇,谢卓君,谭亲平,王泽鹏,周光红,杨成富,蒙明华,谭礼金,汪小勇,李俊海,徐良易,王大富. 黔西南卡林型金矿聚集区构造地球化学弱矿化信息提取方法及其应用研究[J]. 黄金科学技术, 2021, 29(1): 53-63.
[15] 谢玉华,高华,张哲,杨亮,柯新星,刘晓敏,罗建镖,刘琦,许坤林,刘继顺,王智琳,孔华,刘飚. 湖南通道地区金矿床成矿流体特征及成矿物质来源:来自流体包裹体、H-O-S同位素的证据[J]. 黄金科学技术, 2021, 29(1): 74-89.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
No Suggested Reading articles found!