内蒙古哈尔楚鲁图铅锌多金属矿床地质特征
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摘要
大兴安岭南段是我国北方重要的锡铅锌银多金属矿集区,区内成矿地质条件优越,找矿潜力巨大。哈尔楚鲁图铅锌多金属矿床位于内蒙古赤峰市克什克腾旗北部,大兴安岭南段西坡成矿带西南端。在野外调查和室内测试的基础上,通过对该矿床进行基础地质特征和控矿条件研究认为,矿体的赋矿围岩主要为华力西晚期闪长岩,而成矿岩体为燕山期隐伏花岗岩。矿体均受北西向张扭性断层构造控制,而北东向压扭性断裂普遍蚀变,无铅锌矿体,为导矿构造。矿化蚀变类型以绢云母化、硅化、绿泥石化为主,与成矿关系密切,可作为找矿标志。而萤石化、方解石化为矿化后期蚀变,亦可作为间接找矿标志。综合分析认为,该矿床是受断裂构造控制的中—低温热液充填式脉状铅锌多金属矿床。
The Southern Great Xing' an Range is one of the important metallogenic centralized region of Sn-Pb-Zn-Ag Polymetallic in Northern China. The condition of geological mineralization in the area is outstanding, have good mineral-forming condition and great prospection potential. The Haerchulutu Pb-Zn polymetallic deposit is located in the southwestern end of the West slope Southern Great Xing' an Range, and north of szeketenqi, chifeng city, Inner Mongolia. On the basis of field investigation and indoor testing,through the study of basic geological features and ore control conditions, it is believed that the surrounding rock of the ore body is mainly diorite in late Variscan, while the ore-forming rock body is concealed granite in Yanshanian. The ore bodies are all controlled by the NW tensional fault structure, while the NE compressive and torsional faults generally undergo alteration but no Pb-Zn ore bodies,which is the guide structure. The types of mineralization alteration mainly include sericitization, silicification and chloritization, which are closely related to mineralization and can be used as the prospecting criteria. Fluoritization and calcitization into mineralization later stage, also can be used as indirect prospecting criteria. It is concluded that this deposit is a middle-low temperature hydrothermal PbZn polymetallic deposit controlled by fault structure.
The Southern Great Xing' an Range is one of the important metallogenic centralized region of Sn-Pb-Zn-Ag Polymetallic in Northern China. The condition of geological mineralization in the area is outstanding, have good mineral-forming condition and great prospection potential. The Haerchulutu Pb-Zn polymetallic deposit is located in the southwestern end of the West slope Southern Great Xing' an Range, and north of szeketenqi, chifeng city, Inner Mongolia. On the basis of field investigation and indoor testing,through the study of basic geological features and ore control conditions, it is believed that the surrounding rock of the ore body is mainly diorite in late Variscan, while the ore-forming rock body is concealed granite in Yanshanian. The ore bodies are all controlled by the NW tensional fault structure, while the NE compressive and torsional faults generally undergo alteration but no Pb-Zn ore bodies,which is the guide structure. The types of mineralization alteration mainly include sericitization, silicification and chloritization, which are closely related to mineralization and can be used as the prospecting criteria. Fluoritization and calcitization into mineralization later stage, also can be used as indirect prospecting criteria. It is concluded that this deposit is a middle-low temperature hydrothermal PbZn polymetallic deposit controlled by fault structure.
引文
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潘小菲,王硕,侯增谦,童英,薛怀民,周喜文,谢玉玲.2009.内蒙古道伦达坝铜多金属矿床特征研究[J].大地构造与成矿学,33(3):402-410.
孙丰月,王力.2008.内蒙拜仁达坝银铅锌多金属矿床成矿条件[J].吉林大学学报(地球科学版),(3):376-383.
王承洋.2015.内蒙古黄岗梁—甘珠尔庙成矿带铅锌多金属成矿系列与找矿方向[D].长春:吉林大学.
王力,孙丰月.2008.内蒙拜仁达坝银铅锌多金属矿床地质特征[J].世界地质,(3):252-259.
王一存,李文,王可勇,韩屹,尹桂堂.2015.内蒙古沙布楞山铜多金属矿床地质特征与成矿流体研究[C]//中国矿物岩石地球化学学会.中国矿物岩石地球化学学会第15届学术年会论文摘要集(4).中国矿物岩石地球化学学会.
曾庆栋,刘建明,褚少雄,郭云鹏,高帅,郭理想,翟媛媛.2016.大兴安岭南段多金属矿成矿作用和找矿潜力[J].吉林大学学报(地球科学版),46(4):1100-1123.
张雪冰.2017.大兴安岭南段西坡铅锌多金属矿床成矿系列与找矿方向[D].长春:吉林大学.
郑翻身,蔡红军,张振法.2006.内蒙古拜仁达坝维拉斯托超大型银铅锌矿的发现及找矿意义[J].物探与化探,(1):13-20,25.
陈永清,韩学林,赵红娟,程志中,唐宇,陈武.2011.内蒙花敖包特Pb-Zn-Ag多金属矿床原生晕分带特征与深部矿体预测模型[J].地球科学(中国地质大学学报),36(2):236-246.
付丽娟.2016.内蒙古西乌珠穆沁旗布金黑铅锌矿床地质特征及找矿方向[D].长春:吉林大学.
郭义平,常帼雄,刘宏伟.2011.内蒙古维拉斯托锌铜多金属矿床特征及成因[J].地质与资源,20(5):365-369.
李振祥,谢振玉,刘召,李淑果.2008.内蒙古西乌珠穆沁旗花敖包特银铅锌矿矿床地质特征及成因初探[J].地质与资源,17(4):278-281,277.
李振祥,周福华,崔栋,李月新.2009.内蒙古道伦达坝铜多金属矿矿床地质特征及成因初探[J].地质与资源,18(1):27-30.
刘妍,江思宏,张志刚,刘翼飞,聂凤军.2011.内蒙古拜仁达坝-维拉斯托银多金属矿床的矿相学特征[J].矿床地质,30(5):837-854.
欧阳荷根.2013.大兴安岭南段拜仁达坝一维拉斯托银多金属矿床成矿作用及动力学背景[D].北京:中国地质大学(北京).
潘小菲,王硕,侯增谦,童英,薛怀民,周喜文,谢玉玲.2009.内蒙古道伦达坝铜多金属矿床特征研究[J].大地构造与成矿学,33(3):402-410.
孙丰月,王力.2008.内蒙拜仁达坝银铅锌多金属矿床成矿条件[J].吉林大学学报(地球科学版),(3):376-383.
王承洋.2015.内蒙古黄岗梁—甘珠尔庙成矿带铅锌多金属成矿系列与找矿方向[D].长春:吉林大学.
王力,孙丰月.2008.内蒙拜仁达坝银铅锌多金属矿床地质特征[J].世界地质,(3):252-259.
王一存,李文,王可勇,韩屹,尹桂堂.2015.内蒙古沙布楞山铜多金属矿床地质特征与成矿流体研究[C]//中国矿物岩石地球化学学会.中国矿物岩石地球化学学会第15届学术年会论文摘要集(4).中国矿物岩石地球化学学会.
曾庆栋,刘建明,褚少雄,郭云鹏,高帅,郭理想,翟媛媛.2016.大兴安岭南段多金属矿成矿作用和找矿潜力[J].吉林大学学报(地球科学版),46(4):1100-1123.
张雪冰.2017.大兴安岭南段西坡铅锌多金属矿床成矿系列与找矿方向[D].长春:吉林大学.
郑翻身,蔡红军,张振法.2006.内蒙古拜仁达坝维拉斯托超大型银铅锌矿的发现及找矿意义[J].物探与化探,(1):13-20,25.