青海省门源县扎麻图金矿床地质特征及找矿标志
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摘要
青海省门源县扎麻图金矿大地构造位置处于北祁连板块范围内。该文在阐述成矿地质背景和矿床地质特征的基础上,从地层、构造、岩浆活动等方面分析了控矿因素和找矿标志,并对矿床成因进行了探讨。认为该矿床属于浅成低温热液型矿床,主要控矿因素为断裂构造破碎带,其次加里东晚期的中-酸性岩浆活动也是矿床形成必不可少的条件;主要找矿标志为地层岩性、构造蚀变破碎带、矿化蚀变、地球化学异常;加里东晚期,强烈的中-酸性岩浆侵位活动不仅控制了金矿体的就位,也带来了成矿物质,提供了热源;而频繁的构造运动为成矿物质的活化、迁移、富集、沉淀提供了通道和容矿场所,进而形成金矿床。
Zhamatu gold deposit is located in the north Qilian plate at Menyuan county of Qinghai province.Based on the metallogenic background and geological features,we stated the ore-controlling factors,ore guides,and discussed the genesis of mineral deposit with the analysis of the stratum,tectonics and magmatic activities.We find that genetic type is low temperature hydrothermal deposit.The main ore-controlling factor is the fault structures and the medium-acidic magmatic activity is one of the essential conditions.Stratum and lithology,tectonic alteration and crushed zone,mineralized alteration and geochemical anomaly are the main indicators.The strong invasion of acidic magma in late Caledonian controlled the location of the gold mine and offered the materials and heat.And the constant tectonic movements provided the channel and space for the transportation,mobilization,enrichment and sediment of the gold mine.
Zhamatu gold deposit is located in the north Qilian plate at Menyuan county of Qinghai province.Based on the metallogenic background and geological features,we stated the ore-controlling factors,ore guides,and discussed the genesis of mineral deposit with the analysis of the stratum,tectonics and magmatic activities.We find that genetic type is low temperature hydrothermal deposit.The main ore-controlling factor is the fault structures and the medium-acidic magmatic activity is one of the essential conditions.Stratum and lithology,tectonic alteration and crushed zone,mineralized alteration and geochemical anomaly are the main indicators.The strong invasion of acidic magma in late Caledonian controlled the location of the gold mine and offered the materials and heat.And the constant tectonic movements provided the channel and space for the transportation,mobilization,enrichment and sediment of the gold mine.
引文
[1]张涛,伊有昌,肖小强,等.青海松树南沟金矿床控矿因素及找矿方向研究[J].矿产勘查,2011,2(1):49-53.
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[15]侯增谦,曲晓明,杨竹森,等.青藏高原碰撞造山带:Ⅲ.后碰撞伸展成矿作用[J].矿床地质,2006,25(6):629-651.
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[19]吴发富,王宗起,闫臻,等.秦岭山阳-柞水地区燕山期中酸性侵入岩地球化学特征、锆石U-Pb年龄及Lu-Hf同位素组成[J].岩石学报,2014,30(2):451-471.
[20]李文忠,袁桂林,巩志远,等.青海油葫芦-马粪沟地区金及多金属成矿规律与找矿潜力分析[J].河北北方学院学报(自然科学版),2014,30(6):42-46.
[21]邝建中,杨钻云,林秦安.青海省北祁连中段托勒山地区金锑等多金属矿地球化学特征及其找矿前景[J].地质找矿论丛,2013,28(1):142-148.
[22]刘会文,雷延军,韩德义,等.青海大水沟金矿地质特征及找矿前景分析[J].黄金科学技术,2014,(5):51-58.
[2]张朋,张倩,刘长纯,等.华北克拉通北缘猫岭金矿床地质特征及找矿标志[J].黄金,2013,34(11):11-15.
[3]刘传朋.青海省都兰县哈茨谱山北铜铅银金多金属矿矿床地质特征及成因探讨[J].山东国土资源,2016,32(5):10-15.
[4]陈衍景,富士谷,金持跃.半宽金矿的成因类型和成矿机制-矿物包裹体和同位素研究的启示[J].矿物学报,1992,(4):289-298.
[5]管祥波,李军.青海省都兰县巴隆岩金矿床地质特征及找矿标志[J].山东国土资源,2016,32(12):14-18.
[6]韩金良,张宝林.隐伏金矿床定位预测研究现状与展望[J].黄金科学技术,2000,(5):1-12.
[7]李军,陆林祥,张英梅,等.青海省都兰县乌拉斯太沟口金矿区地质特征及找矿前景[J].山东国土资源,2016,32(9):1-5.
[8]徐伟祥,徐均强,张恺,等.北祁连阿柔地区奥陶纪火山岩岩石学特征及其喷发旋回研究[J].山东国土资源,2015,31(11):1-5.
[9]王艺云,唐菊兴,郑文宝,等.西藏隆子县扎西康锌多金属矿床矿石组构研究及成因探讨[J].地球学报,2012,33(4):681-692.
[10]肖晓林,仲世新,张龙,等.青海省门源县松树南沟金矿矿床控制因素及找矿方向[A]//四川省冶金地质勘查局建局五十年纪念文集[C].2012:116-121.
[11]杨运军.北祁连武松塔拉一带奥陶纪火山岩特征及其构造意义[D].北京:中国地质大学,2015.
[12]王飞,燕宁,赵萍,等.北祁连达坂山地质与地球化学特征及成矿预测[J].矿产勘查,2012,3(1):63-68.
[13]丁仨平.西秦岭-祁连造山带(东段)交接部位早古生代构造格架及构造演化[D].西安:长安大学,2008.
[14]伊有昌,陈树云,文雪峰.青海北祁连松树南沟造山型金矿床地质特征及矿床成因[J].黄金,2006,27(10):16-19.
[15]侯增谦,曲晓明,杨竹森,等.青藏高原碰撞造山带:Ⅲ.后碰撞伸展成矿作用[J].矿床地质,2006,25(6):629-651.
[16]肖晓林,陈岑.青海松树南沟金矿矿床地质特征[J].地质与勘探,2010,46(2):191-197.
[17]李学虎.青海南戈滩多金属矿床的地质特征及找矿前景浅析[J].黄金科学技术,2010,18(2):16-21.
[18]张侍威.豫西公峪金矿床特征及成矿机制探讨[J].地质与勘探,2004,40(5):12-15.
[19]吴发富,王宗起,闫臻,等.秦岭山阳-柞水地区燕山期中酸性侵入岩地球化学特征、锆石U-Pb年龄及Lu-Hf同位素组成[J].岩石学报,2014,30(2):451-471.
[20]李文忠,袁桂林,巩志远,等.青海油葫芦-马粪沟地区金及多金属成矿规律与找矿潜力分析[J].河北北方学院学报(自然科学版),2014,30(6):42-46.
[21]邝建中,杨钻云,林秦安.青海省北祁连中段托勒山地区金锑等多金属矿地球化学特征及其找矿前景[J].地质找矿论丛,2013,28(1):142-148.
[22]刘会文,雷延军,韩德义,等.青海大水沟金矿地质特征及找矿前景分析[J].黄金科学技术,2014,(5):51-58.