内蒙古自治区太仆寺旗金豆子山铅锌矿地质地球物理找矿研究
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摘要
内蒙古太仆寺旗金豆子矿床是一个以铅锌为主,伴生银的铅锌多金属矿床。大地构造位置位于华北地台北缘、白云鄂博裂谷带中。本文分析了金豆子矿区矿床地质特征及地球物理特征,研究了矿床成因、成矿规律,并对矿区的找矿前景进行了分析,提出了三个找矿远景区,为下一步的找矿工作提供了理论依据。
经研究发现,研究区大面积出露的花岗岩体属燕山早期花岗岩体,区内出露地层主要为为中元古界白云鄂博群(Pt2B)。区内最主要的控矿构造为北东向的F1断裂构造,矿体的产出对围岩没有选择性,矿床成因属中低温热液矿床。与铅锌矿化有密切关系的围岩蚀变主要有硅化、绢云母化、含铁锰碳酸盐化。矿体具有低阻高极化的特征,双频激电方法能很好地反映矿体的矿化信息、定位矿体。
已经发现的矿床主要由4个矿带组成,包括12个矿体组成,其中Ⅰ号矿带的Ⅰ号矿体为主矿体,Ⅰ号矿体走向57°,长大于600米,最大延深492米以上,平均厚度5米,其他矿体规模小。
通过对矿区的成矿背景、矿床成因、控矿因素和成矿规律等的分析和研究,金豆子矿区具有很好的找矿前景。特别是在矿区的南面,发现三条北东向铅锌矿化断裂破碎带和数条褐铁矿化断裂破碎蚀变带,为本区最重要的找矿远景区。
The Jindouzi ores are a lead, zinc and Argentine metallic bed. The deposit are located at the north edge of Huabei Uplift, Baiyunerbo rift valley belt.The paper analysizes the geological features and geophysical characteristics of the Jindouzai deposit, takes studies on the genesis of ore deposit and ore-controlling factors, makes a forecast of the prospecting potential for the mining area, puts forward three prospecting areas, and provides a theoretical basis for the next phase of exploration.
The large area of granite exposed in this area id the early Yanshan granite, and the exposed stratain the region are mainly the Bayan Obo group Mesoproterozoic (Pt2B), the output of the rock body is not selective, the most important ore-controlling structure is the north-east of the F1 fault, the genesis of ore deposits belongs to epithermal deposits, the wall-rock alteration closely related to lead-zinc mainly includes silicification, sericite and carbonate content of Mn, the ore body has the characteristics of low resistivity and high polartization, the dual-frequeency IP method can well reflect the mineralization information, body positioning in this mining area.
The deposits have been found by the four major ore belt, including 12 bodies, of which No.I body in No.Iore belt is the main ore body. No.I body is towards northwest strike 57°, up to 600 meters, the largest extension isf more than 492 meters deep, with an average thickness of 5 meters, and the other ore body is small-scale.
Through analysizing and research on the metallogenic background, genesis of ore deposit, ore-controlling factors and metallogenic rules, the Jindouzi mining area has a good prospecting. Especially in the south of the mining area, three northeast lead-zinc faults and several broken limonite alteration zone in this area are the most important area of prospecting.
经研究发现,研究区大面积出露的花岗岩体属燕山早期花岗岩体,区内出露地层主要为为中元古界白云鄂博群(Pt2B)。区内最主要的控矿构造为北东向的F1断裂构造,矿体的产出对围岩没有选择性,矿床成因属中低温热液矿床。与铅锌矿化有密切关系的围岩蚀变主要有硅化、绢云母化、含铁锰碳酸盐化。矿体具有低阻高极化的特征,双频激电方法能很好地反映矿体的矿化信息、定位矿体。
已经发现的矿床主要由4个矿带组成,包括12个矿体组成,其中Ⅰ号矿带的Ⅰ号矿体为主矿体,Ⅰ号矿体走向57°,长大于600米,最大延深492米以上,平均厚度5米,其他矿体规模小。
通过对矿区的成矿背景、矿床成因、控矿因素和成矿规律等的分析和研究,金豆子矿区具有很好的找矿前景。特别是在矿区的南面,发现三条北东向铅锌矿化断裂破碎带和数条褐铁矿化断裂破碎蚀变带,为本区最重要的找矿远景区。
The Jindouzi ores are a lead, zinc and Argentine metallic bed. The deposit are located at the north edge of Huabei Uplift, Baiyunerbo rift valley belt.The paper analysizes the geological features and geophysical characteristics of the Jindouzai deposit, takes studies on the genesis of ore deposit and ore-controlling factors, makes a forecast of the prospecting potential for the mining area, puts forward three prospecting areas, and provides a theoretical basis for the next phase of exploration.
The large area of granite exposed in this area id the early Yanshan granite, and the exposed stratain the region are mainly the Bayan Obo group Mesoproterozoic (Pt2B), the output of the rock body is not selective, the most important ore-controlling structure is the north-east of the F1 fault, the genesis of ore deposits belongs to epithermal deposits, the wall-rock alteration closely related to lead-zinc mainly includes silicification, sericite and carbonate content of Mn, the ore body has the characteristics of low resistivity and high polartization, the dual-frequeency IP method can well reflect the mineralization information, body positioning in this mining area.
The deposits have been found by the four major ore belt, including 12 bodies, of which No.I body in No.Iore belt is the main ore body. No.I body is towards northwest strike 57°, up to 600 meters, the largest extension isf more than 492 meters deep, with an average thickness of 5 meters, and the other ore body is small-scale.
Through analysizing and research on the metallogenic background, genesis of ore deposit, ore-controlling factors and metallogenic rules, the Jindouzi mining area has a good prospecting. Especially in the south of the mining area, three northeast lead-zinc faults and several broken limonite alteration zone in this area are the most important area of prospecting.
引文
[1]内蒙古自治区地质局.1:20万区域地质调查太仆寺旗幅.北京:地质出版社,1978
[2]昆明有色地质勘察院,金豆子山铅锌矿普查地质报告,2008
[3]李伟.内蒙古太仆寺旗1:100000矿产图说明书 中南大学地学院 2004
[4]中南大学.道伦达坝铜矿找矿研究,2003
[5]杜华坤 等 内蒙古太仆寺旗物探找矿报告[R].中南大学信息物理工程学院 2005.12
[6]徐开礼,朱志澄.构造地质学,北京:地质出版社,1993.
[7]黎彤等.中国花岗岩和世界花岗岩类平均化学成分对比研究,大地构造与成矿学,1998
[8]李白成等.中国及其邻区大地构造学.北京:科学出版社,2002
[9]刘石年.成矿预测学,中南工业大学出版社,1993
[10]崔盛芹等.华北地球地缘构造运动序列及区域构造搭架,北京:地质出版社,2000
[11]崔盛芹,李锦蓉,孙家树,等.华北陆块北缘构造运动序列及区域构造格局[M].北京:地质出版社,2000.
[12]陈毓川,朱裕生.中国矿床成矿模式[M].北京:地质出版社,1993[9]
[13]李四光.地质力学概论.北京:地质出版社,1973,10-100
[14]陈国达,王瑞华,王伏泉.地洼改造与金成矿.北京:地质出版社,1997,41-61
[15]A.H.Q米契尔等.矿床与全球构造.地质出版社[M],1986
[16]弗.索金斯.金属矿床与板块构造.地质出版社[M],1987
[17]芮宗瑶等.华北陆块北缘及邻区有色金属矿产[M].地质出版社.1994.
[18]Sibson RH.Fault rocks and fault mechanisms.J Geol Soc London,1977,133:191-213
[19]McCaig.A.M,1988,Deep Fluid Circulation in Fault Zones,Gelogy,NO.16,P.867
[20]Eskenazy G.Geochemistry of copper,zinc and lead in Bulgarian coal deposits.Fuel and Energy Abstracts,1996,Volume37,Issue5:330
[21]Barne s,H.L.(editor).Geochemistry of hydrothermal deposits,1979,second edition
[22]Sinba,A.K.,Hewitt,D.A Rimmstidt,J.D.1986.Fluid Interaction and Element Mobility in The Development of Ultramylonites,Geology,VOl.14, pp.833-886
[23]赵鹏大、王景贵、饶明辉等.中国地质异常[J]地球科学.1995.20(2):117-127
[24]赵鹏大、孟宪国.地质异常与矿产预测[J].地球科学.1993.18(1):39-47
[25]陈永清,夏庆霖.应用地质异常单元圈定矿产资源体潜在地段[J].地球科学.1999,24(5):459-463
[26]Cox D.P.The Development and use of mineral deposit models in the united states geological survey.Geological association of Canada special Page[J],2001,5:1-15
[27]Cox D.P.,Singer D.A Mineral Deposit Models[J].U.S Geological survey Bulletion 1693,1986,379,143-161
[28]Hodgson C.J.uses(and abuses) of ore deposit models in mineral exploration Geosciences Canada[M].1990,17
[29]McCamon.R.BPROSPECTOR Ⅱ-an expert system for mineral deposit models[J].Geologlcal association of Canada special pager,40,1993:679-684
[30]Singer D.A.some suggested future directions of quantitative resource assessments[M].Journal of Univerisity of geosciences,2001,40-44
[31]Singer D.A basic concepts in three quantitative assessments of undiscovered minernal resources[[J].Non-renewable resources,1993a.2(2):69-81
[32]Singer D.A development of grade and tonnage models for different deposite types[J].Gcological association of Canada special Pager,40,1993b,21-30
[33]翟裕生,彭润民,邓军等.区域成矿学与找矿新思路[J]现代地质,2002,15(2):151-156
[34]谢学锦.进入21世纪的勘查地球化学.中国地质[J],2001,(04):11-18
[35]卢作祥,范永香,刘辅臣.成矿规律和成矿预测学.武汉:中国地质大学出版社,1988
[36]黎彤,袁怀雨,吴胜昔.中国花岗岩类和世界花岗岩类平均化学成分的对比研究[J].大地构造与成矿学,1998,22(1):29-34
[37]翟裕生等.区域成矿学[M].地质出版社,1999
[38]金性春,严则.板块构造理论与中国主要大地构造学派[J].地质评论,1998,34(1):71-79
[39]杨森楠,杨巍然等.中国区域大地构造学[M].北京:地质出版社,1985
[40]赵鹏大,陈建平,陈建国.成矿多样性与矿床谱系.地球科学-中国地质大学学 报仁[J],2001,(02):5-11
[41]孙启祯.边缘成矿与成矿边缘效应.地学前缘[J],1994,(04):176-183
[42]李金铭.电法勘探方法发展概况[J].物探与化探,1996,20(4):250-258
[43]谢捷生.我国时间域激电仪的发展过程及现状[J].地学仪器,1996,(1):7-10
[44]何继善.双频激电法[M].北京:高等教育出版社,2005
[45]何继善.电法勘探的发展和展望[J].地球物理学报,1997,40(7):308-316
[46]孙鸿雁 可控音频大地电磁法地形影响及校正方法的对比研究与应用:[博士论文].中国地质大学(北京),2005
[47]张赛珍,王庆乙,罗延钟.中国电法发展概况[J].地球物理学报,1994,37(增刊):408-424
[2]昆明有色地质勘察院,金豆子山铅锌矿普查地质报告,2008
[3]李伟.内蒙古太仆寺旗1:100000矿产图说明书 中南大学地学院 2004
[4]中南大学.道伦达坝铜矿找矿研究,2003
[5]杜华坤 等 内蒙古太仆寺旗物探找矿报告[R].中南大学信息物理工程学院 2005.12
[6]徐开礼,朱志澄.构造地质学,北京:地质出版社,1993.
[7]黎彤等.中国花岗岩和世界花岗岩类平均化学成分对比研究,大地构造与成矿学,1998
[8]李白成等.中国及其邻区大地构造学.北京:科学出版社,2002
[9]刘石年.成矿预测学,中南工业大学出版社,1993
[10]崔盛芹等.华北地球地缘构造运动序列及区域构造搭架,北京:地质出版社,2000
[11]崔盛芹,李锦蓉,孙家树,等.华北陆块北缘构造运动序列及区域构造格局[M].北京:地质出版社,2000.
[12]陈毓川,朱裕生.中国矿床成矿模式[M].北京:地质出版社,1993[9]
[13]李四光.地质力学概论.北京:地质出版社,1973,10-100
[14]陈国达,王瑞华,王伏泉.地洼改造与金成矿.北京:地质出版社,1997,41-61
[15]A.H.Q米契尔等.矿床与全球构造.地质出版社[M],1986
[16]弗.索金斯.金属矿床与板块构造.地质出版社[M],1987
[17]芮宗瑶等.华北陆块北缘及邻区有色金属矿产[M].地质出版社.1994.
[18]Sibson RH.Fault rocks and fault mechanisms.J Geol Soc London,1977,133:191-213
[19]McCaig.A.M,1988,Deep Fluid Circulation in Fault Zones,Gelogy,NO.16,P.867
[20]Eskenazy G.Geochemistry of copper,zinc and lead in Bulgarian coal deposits.Fuel and Energy Abstracts,1996,Volume37,Issue5:330
[21]Barne s,H.L.(editor).Geochemistry of hydrothermal deposits,1979,second edition
[22]Sinba,A.K.,Hewitt,D.A Rimmstidt,J.D.1986.Fluid Interaction and Element Mobility in The Development of Ultramylonites,Geology,VOl.14, pp.833-886
[23]赵鹏大、王景贵、饶明辉等.中国地质异常[J]地球科学.1995.20(2):117-127
[24]赵鹏大、孟宪国.地质异常与矿产预测[J].地球科学.1993.18(1):39-47
[25]陈永清,夏庆霖.应用地质异常单元圈定矿产资源体潜在地段[J].地球科学.1999,24(5):459-463
[26]Cox D.P.The Development and use of mineral deposit models in the united states geological survey.Geological association of Canada special Page[J],2001,5:1-15
[27]Cox D.P.,Singer D.A Mineral Deposit Models[J].U.S Geological survey Bulletion 1693,1986,379,143-161
[28]Hodgson C.J.uses(and abuses) of ore deposit models in mineral exploration Geosciences Canada[M].1990,17
[29]McCamon.R.BPROSPECTOR Ⅱ-an expert system for mineral deposit models[J].Geologlcal association of Canada special pager,40,1993:679-684
[30]Singer D.A.some suggested future directions of quantitative resource assessments[M].Journal of Univerisity of geosciences,2001,40-44
[31]Singer D.A basic concepts in three quantitative assessments of undiscovered minernal resources[[J].Non-renewable resources,1993a.2(2):69-81
[32]Singer D.A development of grade and tonnage models for different deposite types[J].Gcological association of Canada special Pager,40,1993b,21-30
[33]翟裕生,彭润民,邓军等.区域成矿学与找矿新思路[J]现代地质,2002,15(2):151-156
[34]谢学锦.进入21世纪的勘查地球化学.中国地质[J],2001,(04):11-18
[35]卢作祥,范永香,刘辅臣.成矿规律和成矿预测学.武汉:中国地质大学出版社,1988
[36]黎彤,袁怀雨,吴胜昔.中国花岗岩类和世界花岗岩类平均化学成分的对比研究[J].大地构造与成矿学,1998,22(1):29-34
[37]翟裕生等.区域成矿学[M].地质出版社,1999
[38]金性春,严则.板块构造理论与中国主要大地构造学派[J].地质评论,1998,34(1):71-79
[39]杨森楠,杨巍然等.中国区域大地构造学[M].北京:地质出版社,1985
[40]赵鹏大,陈建平,陈建国.成矿多样性与矿床谱系.地球科学-中国地质大学学 报仁[J],2001,(02):5-11
[41]孙启祯.边缘成矿与成矿边缘效应.地学前缘[J],1994,(04):176-183
[42]李金铭.电法勘探方法发展概况[J].物探与化探,1996,20(4):250-258
[43]谢捷生.我国时间域激电仪的发展过程及现状[J].地学仪器,1996,(1):7-10
[44]何继善.双频激电法[M].北京:高等教育出版社,2005
[45]何继善.电法勘探的发展和展望[J].地球物理学报,1997,40(7):308-316
[46]孙鸿雁 可控音频大地电磁法地形影响及校正方法的对比研究与应用:[博士论文].中国地质大学(北京),2005
[47]张赛珍,王庆乙,罗延钟.中国电法发展概况[J].地球物理学报,1994,37(增刊):408-424