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] 陈懋弘, 谢贤洋, 马克忠. 贵州泥堡卡林型金矿断控型矿体的地层和岩性条件研究[J]. 黄金科学技术, 2018, 26(2): 131-142.
[2] 曲晖, 王佰义, 王建民, 李成禄, 徐国战, 王卓. 土壤地球化学测量在永新金矿勘查中的应用及找矿效果研究[J]. 黄金科学技术, 2018, 26(2): 143-152.
[3] 张健,杨兴科*,晁会霞,何虎军,韩珂,杨龙伟,李斌. 南秦岭石泉—汉阴北部金矿带矿化蚀变特征[J]. 黄金科学技术, 2017, 25(6): 21-30.
[4] 郑慕婷,张术根,贺忠春. 湖南康家湾金银多金属矿床金银赋存状态及其与成矿演化的关系[J]. 黄金科学技术, 2017, 25(6): 31-42.
[5] 梁永科,王德恭,赵杰. 湖南玉横塘金矿区地质特征及找矿前景分析[J]. 黄金科学技术, 2017, 25(6): 43-51.
[6] 高帅,曾庆栋,于昌明,邢宝山,荆林海,叶杰,范宏瑞,杨奎锋. 遥感及综合物探方法用于山东招远南部隐伏成矿侵入体的空间定位[J]. 黄金科学技术, 2017, 25(5): 1-10.
[7] 韩珂,杨兴科*,张健,胡国朝. 陕南汉阴黄龙金矿脆—韧性剪切带特征及其对成矿的控制作用[J]. 黄金科学技术, 2017, 25(5): 18-29.
[8] 王晓青,杨兴科,芮会超. 内蒙古岱王山金矿黄铁矿形态标型及其变化规律与找矿意义[J]. 黄金科学技术, 2017, 25(5): 39-46.
[9] 陈彩华,孙斌,陈冀,陈力子 . 西秦岭中寨—十里铺地区水系沉积物测量找矿效果[J]. 黄金科学技术, 2017, 25(4): 1-9.
[10] 张磊,佟宇,杨振东,白云龙,刘幸,赵永涛. 辽宁苇子沟地区金铜多金属矿成矿机制及找矿方向[J]. 黄金科学技术, 2017, 25(4): 10-17.
[11] 宋英昕,宋明春,丁正江,魏绪峰,徐韶辉,李杰,谭现峰,李世勇,张照录, 焦秀美,胡弘,曹佳. 胶东金矿集区深部找矿重要进展及成矿特征[J]. 黄金科学技术, 2017, 25(3): 4-18.
[12] 宋国政,闫春明,曹佳,郭志峰,鲍中义,刘国栋,李山,范家盟,刘彩杰. 胶东焦家成矿带超千米深部金矿勘查突破及意义——以纱岭矿区为例[J]. 黄金科学技术, 2017, 25(3): 19-27.
[13] 徐忠华,王福江,周明岭,白宜娜,赵成乐,胡秉谦. 胶东磨山金矿床主要金属矿物的矿物学特征及矿床成因研究[J]. 黄金科学技术, 2017, 25(3): 28-37.
[14] 刘国栋,温桂军,刘彩杰,鲍中义*,孙忠全,范家盟,李山,闫春明,郭志峰. 招平断裂北段水旺庄深部超大型金矿床的发现、特征和找矿方向[J]. 黄金科学技术, 2017, 25(3): 38-45.
[15] 万鹏,丁正江,胡弘,吴凤萍,程蓉蓉,邹键 . 胶东邓格庄金矿床深部成矿特征及找矿方法组合[J]. 黄金科学技术, 2017, 25(3): 46-53.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
No Suggested Reading articles found!