建昌八家子钼矿控矿因素及找矿前景研究
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摘要
本文主要以建昌八家子钼矿为研究对象,在总结前人研究成果和野外工作的基础上,综合运用岩石学、矿物学、矿床学、矿产勘查学、地球化学等多地质学科理论和方法,对区域地质背景、矿区地质概况进行分析,根据物探激发极化中间梯度法异常解释,结合钻孔资料,阐述矿床的地质特征以及对岩浆岩、构造、围岩蚀变等控矿因素进行分析:矿体的位置形态与岩浆岩体、断裂有密切关系,产出于断裂的交合部位附近。通过矿区的岩石样品分析,确定含矿热液是来自于燕山期中侏罗世花岗斑岩。当含矿热液伴随酸性岩浆的脉动式侵入,早期构造的活动破坏以及岩体在斑岩内部产生原生裂隙,为成矿提供了良好的空间条件。根据矿石的结构与构造特征,总结出围岩蚀变的类型及水平方向分带。最后在GIS平台下运用证据权重法对研究区进行矿产预测。
The Ba Jiazi molybdenum mine located in JianChang county is studied for object in the paper. Some geological disciplines theory and methodologies like petrology, mineralogy, economic geology, mineral exploration, geochemical etl are used for analysis of the regional geological setting, geological profile, and interpretation of the data of induced polarization geophysical anomaly method. The geological features of mineralization are described and the magmatic, tectonic, ore-controlling factors such as wall-rock alteration are analyzed combined with construction materials on-site drilling. The results are as follows:the shape and location of mineralization are closely related to magmatic rocks, fractures and produced in the vicinity of fracture intercourse. The ore-bearing hydrothermal fluid produced from the Yanshan granite porphyry Jurassic period is determined through the analysis of rock samples in the mining. When the ore-bearing hydrothermal fluid with the pulse-type granite porphyry invasive, the fractures of the rock existed in the internal of porphyry and the activities of the early structural damage provide a good space for ore. The type of wall rock alteration and horizontal banding are summed up according to the structure and structural characteristics of the ore. Finally, the mineral in the study area is predicted using of weight of evidence method with GIS platform.
The Ba Jiazi molybdenum mine located in JianChang county is studied for object in the paper. Some geological disciplines theory and methodologies like petrology, mineralogy, economic geology, mineral exploration, geochemical etl are used for analysis of the regional geological setting, geological profile, and interpretation of the data of induced polarization geophysical anomaly method. The geological features of mineralization are described and the magmatic, tectonic, ore-controlling factors such as wall-rock alteration are analyzed combined with construction materials on-site drilling. The results are as follows:the shape and location of mineralization are closely related to magmatic rocks, fractures and produced in the vicinity of fracture intercourse. The ore-bearing hydrothermal fluid produced from the Yanshan granite porphyry Jurassic period is determined through the analysis of rock samples in the mining. When the ore-bearing hydrothermal fluid with the pulse-type granite porphyry invasive, the fractures of the rock existed in the internal of porphyry and the activities of the early structural damage provide a good space for ore. The type of wall rock alteration and horizontal banding are summed up according to the structure and structural characteristics of the ore. Finally, the mineral in the study area is predicted using of weight of evidence method with GIS platform.
引文
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[12]代连铎,张玉平,宋雨春.兰家沟钼矿床地质特征及成矿模式[J].有色矿冶,2008,24(6):4-7.
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[23]王长刚,姚富强,王胜伟,等.杨家杖子钼矿开展新一轮找矿勘查前景分析[J].矿产与地质,2003,17(2):154-156.
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[31]李永峰,毛景文,胡华斌.东秦岭钼矿类型、特征、成矿时代及其地球动力学背景[J].矿床地质,2005,24(3):295 -300.
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[33]柴立社,蔡晶,邹祖荣.华北地台含钼和含金花岗岩系的地质地球化学及其成矿作用对比研究[J].长春地质学院学报,1994,24(3):284～290.
[34]芮宗瑶等.华北陆块北缘及邻区有色金属矿床地质[M].北京:地质出版社.383～420.
[35]赵明.吉林省四平山门银矿床地质特征及深部、外围成矿预测[D].吉林大学,2005.
[36]韩世清.内蒙古甲乌拉银铅锌矿床地质特征及成矿预测[D].吉林大学,2006.
[37]严冰.四川宁南地区铅锌成矿规律及证据权法成矿预测[D],成都理工大学,2006.
[38] Boleneus D E, Raines G L, Causey J D, et al. Assessment method for epithermal gold deposits in northeast Washingtong State using weights-of-evidence GIS modeling[R].Washingtong:US Geological Survey,2001:30-39.
[39]罗铭玖,黎世美,卢欣祥,等.河南省主要矿产的成矿作用及矿床地质与勘探2007年床成矿系列[M].北京:地质出版社,2000:58-62.
[40]丁枫.西藏自治区谢通门县雄村铜金矿床成矿条件及成矿预测[D],成都理工大学,2004,6.
[41] Agterberg F P. Computer Programs for Mineral Exploration [J].Science,1989,(245):76-81.2004.
[2]赵越.燕山地区中生代造山运动及构造演化[J].地质论评,1990,36(1):1-21.
[3]刘浩元,王安民.钼矿床工业分类实例[M].北京:中国钼业,1999,14-16.
[4]中国矿床编委会.中国矿床[M].北京:地质出版社,1994,21-24.
[5]辽宁省地质矿产局.辽宁省区域地质志[M].北京:地质出版社,1989,13-15.
[6]辽宁省地质局区域地质测量队一分队.地质图说明书,锦西幅(K—51—XXV)—兴城幅(K—51—XXXI)[M].1965,24-48.
[7]邓刚,吴华,卢全敏.东天山白山斑岩型钼矿床的地质特征及找矿标志[J].地质通报,2004:11
[8]孙锐刚,李晓季,李继才,李杨.丹东万宝斑岩型钼矿床地质特征及成因探讨[J].西部探矿工程,2009:9.
[9]马国玺.河北涞源锌钼矿床地质特征[J].华北地质矿产杂志,1995,10(1):64-76.
[10]闫树魁.辽西杨家杖子钼矿田地质特征及成矿规律[J].矿产与勘查,1990,(5): 10-16.
[11]范玉华,李文昌.云南普朗斑岩铜矿床地质特征[J].中国地质,2006,2(33):352一362.
[12]代连铎,张玉平,宋雨春.兰家沟钼矿床地质特征及成矿模式[J].有色矿冶,2008,24(6):4-7.
[13]邱顺才.河北省母山钼矿地质特征及找矿方向[J].矿产与地质,2006:8
[14]郭鸿军,马申坤.河北省沽源县张麻井铀钼矿控矿因素分析及外围找矿前景探讨[J].地质调查与研究,2009-9.
[15]周宜吉.玉龙矿带中斑岩铜矿的控矿因素及其成因探讨[J].地质论评,1980,26(4):35-40.
[16]郑超.杨家杖子钼矿田控矿因素分析[J].辽宁地质学报,1991,(2):1-18.
[17]杨泽强.河南省商城县汤家坪钼矿围岩蚀变与成矿[J].地质与勘探,2007(5): 17-22.
[18]潘厚满.八家子银金属矿矿田成矿规律与成矿预测[J].矿产与地质,2001,(5):320.
[19] Bloom M S. Chemistry of inclusion fluids: stockwork molybdenum deposits form Questa,New Mexico,Hudson Bay Mountain,and Endako,Bristish Columbia[J]. Econ.Geol.1981:1906-1920.
[20]宋雨春.成矿元素分带理论在辽西找矿的应用[J].有色矿冶,2006,22(2):1-3.
[21]代军治,毛景文,赵财胜,等.辽西兰家沟钼矿床花岗岩SHRIMP锆石U—Pb年龄及岩石化学特征[J].地质学报,2008,82(11):1555-1564.
[22]田豫才.辽西兰家沟钼矿区成矿构造、岩浆演化及成矿作用[J].矿产与地质,1999, 13(3):8-13.
[23]王长刚,姚富强,王胜伟,等.杨家杖子钼矿开展新一轮找矿勘查前景分析[J].矿产与地质,2003,17(2):154-156.
[24]卢作祥等.成矿规律和成矿预测学[M].武汉:中国地质大学出版社,1989,56-78.
[25]韩世清.内蒙古甲乌拉银铅锌矿床地质特征及成矿预测[D].吉林大学,2006.
[26]马永昌.辽西南部金属矿床分布规律及产出特点[J].矿产与地质,1999(5):268.
[27]范永香,阳正熙,成矿规律与成矿预测[M].北京:中国矿业大学出版社,2003,13-48.
[28]艾永富,冯瑞志.杨家杖子—兰家沟地区含钼花岗岩类物质来源及成因类型[A].河南地质,(增刊):1985,198-204.
[29] Shepherd TJ,RaKin A and Alderton D H M. 1985.A practical guide to fluid inclusion studies[M].Blackie & Son Limited.1-154.
[30]代军治.燕辽成矿带钼(铜)矿床成矿作用及成矿动力学背景[D].北京:中国地质科学院,2008.
[31]李永峰,毛景文,胡华斌.东秦岭钼矿类型、特征、成矿时代及其地球动力学背景[J].矿床地质,2005,24(3):295 -300.
[32] Agterberg F P,Bonham-Carter G F,Wright D F.Statistical Pattern Integration for Mineral Exploration[M].Gaal G,Merriam D F.ComputerApplications in Resource Explorationand Assessment for Minerals and Petroleum.Oxford: Perga-mon,1990:1-21.
[33]柴立社,蔡晶,邹祖荣.华北地台含钼和含金花岗岩系的地质地球化学及其成矿作用对比研究[J].长春地质学院学报,1994,24(3):284～290.
[34]芮宗瑶等.华北陆块北缘及邻区有色金属矿床地质[M].北京:地质出版社.383～420.
[35]赵明.吉林省四平山门银矿床地质特征及深部、外围成矿预测[D].吉林大学,2005.
[36]韩世清.内蒙古甲乌拉银铅锌矿床地质特征及成矿预测[D].吉林大学,2006.
[37]严冰.四川宁南地区铅锌成矿规律及证据权法成矿预测[D],成都理工大学,2006.
[38] Boleneus D E, Raines G L, Causey J D, et al. Assessment method for epithermal gold deposits in northeast Washingtong State using weights-of-evidence GIS modeling[R].Washingtong:US Geological Survey,2001:30-39.
[39]罗铭玖,黎世美,卢欣祥,等.河南省主要矿产的成矿作用及矿床地质与勘探2007年床成矿系列[M].北京:地质出版社,2000:58-62.
[40]丁枫.西藏自治区谢通门县雄村铜金矿床成矿条件及成矿预测[D],成都理工大学,2004,6.
[41] Agterberg F P. Computer Programs for Mineral Exploration [J].Science,1989,(245):76-81.2004.