收稿日期: 2016-06-12
修回日期: 2016-07-12
网络出版日期: 2016-11-17
Study on the Vein Distribution Rebularity and Ore-forming Model of Kangshan Gold-bearing Deposit in Xiong’er Mountain Region,Henan Province
Received date: 2016-06-12
Revised date: 2016-07-12
Online published: 2016-11-17
康山金矿位于东秦岭—大别山钼成矿带内,断裂发育,岩体众多,钼—金—铅锌矿床发育,成矿条件优越。康山金矿受控于EW向马超营断裂带与NE向康山—七里坪断裂带交会部位,分布在深部隐伏的中酸性岩顶部。矿区内蚀变分带既有面状分布,也有线状分布,主要蚀变有钾化、黄铁绢英岩化、硅化、青磐岩化和碳酸盐化等。矿区内矿脉(体)呈NE向展布,具有成群、成带近等间距分布规律。矿石类型有石英脉型和蚀变岩型,蚀变及矿化受岩体与脉体联合控制。通过分析区域成矿条件,总结矿区成矿规律,建立了“岩浆成岩(斑岩)成矿(Mo-Cu(Au))—岩浆期后气—液交代蚀变成脉(石英脉)成岩(蚀变岩型)成矿(Au-Pb-Ag)组合模式”,并认为在康山金矿深部或外围可能也存在斑岩型Mo-Cu(Au)矿床。蚀变岩型矿床是区内主要的矿床类型之一。
王君宪 , 张小毛 , 陈彦坤 , 刘新会 , 刘彦伟 , 裴新坡 . 河南熊耳地区康山金矿矿脉分布规律及成矿模式研究[J]. 黄金科学技术, 2016 , 24(4) : 10 -18 . DOI: 10.11872/j.issn.1005-2518.2016.04.010
Kangshan gold deposit is located in East Qinling-Dabie Mountain Mo metallogenic belt,where deep faults are developed and granites are abundant,dozens of molybdenum deposits,gold deposits and lead-zinc deposits are distributed there.It has the superior mineralization geological condition.Kangshan gold deposit is controlled by the NW direction Machaoying fault and the NE direction Kangshan-Qiliping fault,it is distributed in the top of deep concealed intermediate-acidic rocks.There are both planar and linear about the distribution of alteration belt in this area.Main alteration developed in the faults including potassic alteration,silication,carbonation and propylitization.The spreading of mineral veins is always NE direction and it has the ore-forming regularity of in groups by the almost same distance.Ore types are quartz vein type and altered rock type.The alteration and mineralization are under combined controlled by rock mass and veins.According to analysis of regional metallogenic conditions,studying of the metallogenetic regularity,magmatic origin(porphyry)(Mo-Cu(Ag))-postmagmatic gas-liquid metasomatic (quartz vein) (Au-pb-Ag) models are established in the deep and periphery of Kangshan gold deposit may also exist porphyry type Mo-Cu(Au)deposit.The altered rock deposit in the district is the main deposit type of this kind of deposit.
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