Geological characteristics and genesis of the Cercana iron-copper-gold deposit in Peru
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摘要:
萨卡拉（Cercana）铁-铜-金矿床位于秘鲁南部古近纪斑岩型铜-钼矿床成矿带西缘。通过大量的野外地质调查、遥感、物探及室内工作认为，萨卡拉矿床与该地区典型斑岩型矿床存在一定的差异，且具有铁氧化物铜金（IOCG）矿床的某些特点。分析其深部找矿潜力，指出在进行矿产勘查时应考虑从IOCG型矿床的角度出发，对其进行深入的勘查，突破目前遇到的找矿工作困境。
Abstract:The Cercana iron, copper and gold deposit is located on the western margin of the Paleogene porphyry copper molybdenum metallogenic belt in southern Peru. Through field geological investigation, geophysical prospecting, remote sensing and indoor work, the authors have detected that the Cercana iron, copper and gold deposit is somewhat different from the typical porphyry deposit and has some characteristics of iron oxide copper gold deposit (IOCG). The authors also analyzed the deep prospecting potential and pointed out that, in mineral exploration, researchers should consider the problem from the angle of IOCG deposit and make indepth exploration so as to overcome the difficulties currently encountered in ore prospecting.
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Key words:
- IOCG type deposit /
- geological features /
- prospecting potential /
- Peru
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表 1 萨卡拉矿床与典型IOCG型矿床基本地质特征对比
Table 1. The comparison of basic geological characteristics between the Cercana deposit and the typical IOCG deposits
矿床类型 矿床形态 矿物组分 元素组合 赋矿岩石 蚀变类型 控矿构造 克朗克里型矿床 似层状、条带状和角砾岩筒状 磁铁矿、赤铁矿、黄铜矿、斑铜矿、金矿物 Fe, Cu, Au, Ag, Bi、Co和W 钙-碱性到碱性 钾质蚀变〔钾长石、黑云母、绢云母） 岩浆活动和构造断裂 萨卡拉矿床 条带状和角砾岩筒状 磁铁矿、赤铁矿、黄铜矿、斑铜矿、金矿物 Fe、Cu、Au、Ag 闪长岩、二长岩、花岗闪长岩 钾化蚀变为主, 钙-钠化蚀变、铁化蚀变为辅 岩浆活动和北西向断层 
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[1] 吴斌. 秘鲁Don Javier铜矿成矿地质特征与开发模式研究及推广[D]. 中国地质大学(北京)博士学位论文, 2014: 50-63.
http://cdmd.cnki.com.cn/Article/CDMD-11415-1014249494.htm [2] 吴斌, 方针, 叶震超.Don Javier斑岩型铜钼矿床地质特征[J].矿床地质, 2013:18-19. http://mall.cnki.net/magazine/Article/KCDZ201703011.htm
[3] 张杨. 秘鲁南部Don Javier铜矿区地质特征与成矿预测研究[D]. 中南大学硕士学位论文, 2011: 25-30.
http://cdmd.cnki.com.cn/Article/CDMD-10533-1011180145.htm [4] 高祥. 秘鲁南部Don Javier斑岩铜矿床地球化学特征及成矿预测究[D]. 中南大学硕士学位论文, 2012: 33-34.
http://cdmd.cnki.com.cn/Article/CDMD-10533-1012478501.htm [5] 金文强. 秘鲁南部Cercana-Don Javier斑岩铜矿地质特征及成因探讨[D]. 中南大学硕士学位论文, 2011: 7-16.
http://cdmd.cnki.com.cn/article/cdmd-10533-2010187531.htm [6] Mukasa S B, Tilton G R.Zircon U-Pb ages of super units in the Coastal Batholith, Peru[C]//Pitcher W S, Atherton M P, Cobbing E J, et al.Magmatism at a plate edge.The Peruvian Andes.New York:John Wiley and Sons Inc., 1985:44-50.
https://experts.umn.edu/en/publications/zircon-u-pb-ages-of-super-units-in-the-coastal-batholith-peru [7] Mukasa S B, Tilton G R.Zircon U-Pb ages of superunits in the Coastal Batholith, Peru[C]//Pitcher W S, Atherton M P, Cobbing E J, et al.Magmatism at a plate edge.The Peruvian Andes.New York:John Wiley and Sons Inc.1985:203-207.
https://experts.umn.edu/en/publications/zircon-u-pb-ages-of-super-units-in-the-coastal-batholith-peru [8] 张扬, 高光明, 席振, 等.秘鲁南部深大断裂与古新世斑岩铜矿带地质特征[J].南方金属, 2011, 179:19-22 http://industry.wanfangdata.com.cn/dl/Detail/Periodical?id=Periodical_nfgt201102006
[9] 李春鹏. 秘鲁南部多金属矿区成矿预测与勘察分析[D]. 中南大学硕士学位论文, 2010: 18-22.
http://cdmd.cnki.com.cn/Article/CDMD-10533-2010188224.htm [10] 席振. 秘鲁南部铁矿床特征、成矿规律及勘查远景研究[D]. 中南大学硕士学位论文, 2011: 9-19.
http://cdmd.cnki.com.cn/Article/CDMD-10533-1011180147.htm [11] 伍泽昆. 秘鲁南部沿海地区IOCG矿床地质特征及找矿方向[D]. 中南大学硕士学位论文, 2014: 43-45.
http://cdmd.cnki.com.cn/Article/CDMD-10533-1014406797.htm [12] 席振.秘鲁萨卡纳(CERCANA)地区成矿条件与矿床特征[J].南方金属, 2010:30-31. http://www.cnki.com.cn/Article/CJFDTOTAL-XBTK201310039.htm
[13] Cobbing E J, Beckinsale R D.Magmatism at a plate edge[C]//Pitcher W S, Atherton M P, Cobbing E J, et al.Magmatism at a plate edge.The Peruvian Andes.New York:John Wiley and Sons Inc.1985:281-291.
[14] Le Bel L M.Mineralization in the Arequipa segment:T he porphyry Cu deposit of Cerro Verde/Santa Rosa[C]//Pitcher W S, Atherton M P, Cobbing E J, et al.Magmatism at a plate edge.The Peruvian Andes.New York:John Wiley and Sons Inc.1985:250-260.
[15] 毛景文.国外主要矿床类型、特点及找矿勘查[M].北京:地质出版社, 2012:79-188.
[16] 聂凤军, 江思宏, 路彦明.氧化铁型铜-金(IOCG)矿床的地质特征、成因机理与找矿模型[J].中国地质, 2008, 35(6):1074-1087. https://www.wenkuxiazai.com/doc/2f8bf6403968011ca2009128.html
① Cerro Verde矿山地质部. Cerro Verde-Santa Rosa斑岩铜矿地质特征. 2000.
② Ms. Sc. Fernando Núnez Chávez. Characteristicas metalogeneti-cas del deposito porfiritico Cerro Verde. 2000.
③ Ms.Sc.Fernando Núnez Chávez. Characteristicas metalogeneticas del deposito porfiritico Cerro Verde. 2000.
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