河南洛宁县范庄银矿原生晕地球化学特征及深部成矿预测
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摘要
为预测范庄银矿床M_(23)主矿体的深部变化趋势,在对矿区地质特征和矿床成因研究的基础上,开展了野外地质调查及地球化学研究。结果发现矿体具有明显的侧伏现象。微量元素统计分析表明,Cu、Sb、As为矿体的近矿指示元素,矿体具有多期次的特点。M_(23)矿体化探数据表明,矿体自上而下其原生晕轴向分带序列为:Au-Bi-Cu-As-Zn-Pb-Sb-Mo-Ag-Sn-W-Hg,具有明显的"头尾晕共存"和"反分带"特征。结合矿体剥蚀系数的变化规律,预测在M_(23)矿体向深部(696 m以下)有较大延深(伸)或有深部有盲矿体存在,钻探验证(见矿高程370 m)说明矿床深部有较大的增储潜力。
In order to prospect the extending trend of the M_(23) main orebody of the Fanzhuang silver deposit,on the basis of analyzing geological features and genesis of the deposit,a further field geological survey and research on geochemical characteristics of the deposit have been carried out in this paper. Results show that the M_(23) orebody is obviously characterized with lateral plunging phenomena. The statistical analysis of trace elements shows that Cu,Sb,As can be used as important indicators for predicting the orebody which was characterized with multi-stage mineralization. Results of geochemical survey of the M_(23) orebody show that primary halo zoning sequence of the indicator elements in axial direction from the top to the bottom is Au-Bi-Cu-As-Zn-Pb-Sb-Mo-Ag-Sn-W-Hg. This is obviously characterized with the co-existence of frontal and tail halos and the zoning in opposite axial direction. Combining with the variation regularities of erosion coefficient of the orebody,it is forecasted that there could be a quite large concealed orebody in depth below 696 m in elevation along the extending direction of the M_(23) orebody. The drilling has intersected an orebody at depth of 370 m in elevation. This means that there is a great potential for prospecting ore resources in depth beneath the M_(23) orebody.
In order to prospect the extending trend of the M_(23) main orebody of the Fanzhuang silver deposit,on the basis of analyzing geological features and genesis of the deposit,a further field geological survey and research on geochemical characteristics of the deposit have been carried out in this paper. Results show that the M_(23) orebody is obviously characterized with lateral plunging phenomena. The statistical analysis of trace elements shows that Cu,Sb,As can be used as important indicators for predicting the orebody which was characterized with multi-stage mineralization. Results of geochemical survey of the M_(23) orebody show that primary halo zoning sequence of the indicator elements in axial direction from the top to the bottom is Au-Bi-Cu-As-Zn-Pb-Sb-Mo-Ag-Sn-W-Hg. This is obviously characterized with the co-existence of frontal and tail halos and the zoning in opposite axial direction. Combining with the variation regularities of erosion coefficient of the orebody,it is forecasted that there could be a quite large concealed orebody in depth below 696 m in elevation along the extending direction of the M_(23) orebody. The drilling has intersected an orebody at depth of 370 m in elevation. This means that there is a great potential for prospecting ore resources in depth beneath the M_(23) orebody.
引文
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陈全树,谢从瑞,杨忠智,刘海波.2012.河南洛宁范庄金银铅矿床地质特征及找矿前景分析.地质与勘探,48(6):1087-1092
陈玉明,王开天.2008.秘鲁胡斯塔铜矿原生晕地球化学特征及找矿效果.物探与化探,32(2):126-130
程文斌,尹力,陈翠华,宋玉坤,李关清,张兴国,夏抱本,达瓦次仁.2016.西藏柯月Pb-Zn-Sb-Ag多金属矿床I号矿体原生晕地球化学特征.吉林大学学报(地球科学版),46(6):1711-1723
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郭保健,李永峰,王志光,叶会寿.2005.熊耳山Au-Ag-Pb-Mo矿集区成矿模式与找矿方向.地质与勘探,41(5):43-47
郭万超,陈学华.2002.峪耳崖金矿床元素地球化学地质统计分析.地质找矿论丛,17(1):63-72
李永峰.2005.豫西熊耳山地区中生代花岗岩类时空演化与钼(金)成矿作用.博士学位论文.北京:中国地质大学(北京)
李占轲.2013.华北克拉通南缘中生代银-铅-锌矿床成矿作用研究.博士学位论文.武汉:中国地质大学
刘光永,戴茂昌,祁进平,张锦章.2014.福建省紫金山铜金矿床原生晕地球化学特征及深部找矿前景.物探与化探,38(3):434-440
刘怀金,杨永强,孙引强,辛江,温海成,李浩.2016.内蒙古边家大院铅锌银多金属矿床原生晕地球化学特征及深部找矿预测.地质找矿论丛,31(2):245-252
毛景文,郑榕芬,叶会寿,高建京,陈文.2006.豫西熊耳山地区沙沟银铅锌矿床成矿的40Ar-39Ar年龄及其地质意义.矿床地质,25(4):359-368
米红,张文璋.2000.实用现代统计分析方法与SPSS应用.北京:当代中国出版社
庞绪成,郭跃闪,杨剧文,赵定生,张凯涛,赵少攀.2015.河南省洛宁龙门店银铅矿稀土元素地球化学特征及地质意义.中国稀土学报,33(6):747-760.
庞绪成,张凯涛,赵少攀,郭跃闪,周阳.2016.豫西龙门店银矿成矿规律及深部预测.矿物岩石地球化学通报,35(2):272-278
邵拥军,陈星霖,李永峰,刘清泉,张建东.2015.豫西龙门店AgPb-Zn矿床地球化学特征及成因分析.中南大学学报(自然科学版),46(1):171-179
邵跃.1984.矿床元素原生分带的研究及其在地球化学找矿中的应用.地质与勘探,(2):47-55
邵跃.1997.热液矿床岩石测量(原生晕法)找矿.北京:地质出版社,1-143
隋颖慧,王海华,高秀丽,陈华勇,李震.2000.河南铁炉坪银矿成矿流体研究及其对碰撞造山成岩成矿与流体作用模式例证.中国科学(D辑),30(S1):82-90
唐克非.2014.华北克拉通南缘熊耳山地区金矿床时空演化、矿床成因及成矿构造背景.博士学位论文.武汉:中国地质大学(武汉)
王崇云.1987.地球化学找矿基础.北京:地质出版社,9-22
吴发富,龚庆杰,石建喜,李建全,王中亮.2012.熊耳山矿集区金矿控矿地质要素分析.地质与勘探,48(5):865-875
章永梅,顾雪祥,程文斌,董树义,景亮兵,王立强,张岩,沈阳,黄志全,张兴顺.2010.内蒙古柳坝沟金矿床原生晕地球化学特征及深部成矿远景评价.地学前缘,17(2):209-221
Mao J W,Pirajno F,Cook N.2011.Mesozoic metallogeny in East China and corresponding geodynamic settings-An introduction to the special issue.Ore Geology Reviews,43(1):1-7
陈全树,谢从瑞,杨忠智,刘海波.2012.河南洛宁范庄金银铅矿床地质特征及找矿前景分析.地质与勘探,48(6):1087-1092
陈玉明,王开天.2008.秘鲁胡斯塔铜矿原生晕地球化学特征及找矿效果.物探与化探,32(2):126-130
程文斌,尹力,陈翠华,宋玉坤,李关清,张兴国,夏抱本,达瓦次仁.2016.西藏柯月Pb-Zn-Sb-Ag多金属矿床I号矿体原生晕地球化学特征.吉林大学学报(地球科学版),46(6):1711-1723
代力,张德会,李泳泉,万贵龙,侯本俊,廖勋,张进良,王国鹏,李成杰.2013.四川夏塞银铅锌多金属矿床1号矿体原生晕地球化学特征,地质与勘探,49(2):236-249
代力.2013.四川夏塞银铅锌矿床I号矿体原生晕地球化学及深部预测.硕士学位论文.北京:中国地质大学(北京)
郭保健,李永峰,王志光,叶会寿.2005.熊耳山Au-Ag-Pb-Mo矿集区成矿模式与找矿方向.地质与勘探,41(5):43-47
郭万超,陈学华.2002.峪耳崖金矿床元素地球化学地质统计分析.地质找矿论丛,17(1):63-72
李永峰.2005.豫西熊耳山地区中生代花岗岩类时空演化与钼(金)成矿作用.博士学位论文.北京:中国地质大学(北京)
李占轲.2013.华北克拉通南缘中生代银-铅-锌矿床成矿作用研究.博士学位论文.武汉:中国地质大学
刘光永,戴茂昌,祁进平,张锦章.2014.福建省紫金山铜金矿床原生晕地球化学特征及深部找矿前景.物探与化探,38(3):434-440
刘怀金,杨永强,孙引强,辛江,温海成,李浩.2016.内蒙古边家大院铅锌银多金属矿床原生晕地球化学特征及深部找矿预测.地质找矿论丛,31(2):245-252
毛景文,郑榕芬,叶会寿,高建京,陈文.2006.豫西熊耳山地区沙沟银铅锌矿床成矿的40Ar-39Ar年龄及其地质意义.矿床地质,25(4):359-368
米红,张文璋.2000.实用现代统计分析方法与SPSS应用.北京:当代中国出版社
庞绪成,郭跃闪,杨剧文,赵定生,张凯涛,赵少攀.2015.河南省洛宁龙门店银铅矿稀土元素地球化学特征及地质意义.中国稀土学报,33(6):747-760.
庞绪成,张凯涛,赵少攀,郭跃闪,周阳.2016.豫西龙门店银矿成矿规律及深部预测.矿物岩石地球化学通报,35(2):272-278
邵拥军,陈星霖,李永峰,刘清泉,张建东.2015.豫西龙门店AgPb-Zn矿床地球化学特征及成因分析.中南大学学报(自然科学版),46(1):171-179
邵跃.1984.矿床元素原生分带的研究及其在地球化学找矿中的应用.地质与勘探,(2):47-55
邵跃.1997.热液矿床岩石测量(原生晕法)找矿.北京:地质出版社,1-143
隋颖慧,王海华,高秀丽,陈华勇,李震.2000.河南铁炉坪银矿成矿流体研究及其对碰撞造山成岩成矿与流体作用模式例证.中国科学(D辑),30(S1):82-90
唐克非.2014.华北克拉通南缘熊耳山地区金矿床时空演化、矿床成因及成矿构造背景.博士学位论文.武汉:中国地质大学(武汉)
王崇云.1987.地球化学找矿基础.北京:地质出版社,9-22
吴发富,龚庆杰,石建喜,李建全,王中亮.2012.熊耳山矿集区金矿控矿地质要素分析.地质与勘探,48(5):865-875
章永梅,顾雪祥,程文斌,董树义,景亮兵,王立强,张岩,沈阳,黄志全,张兴顺.2010.内蒙古柳坝沟金矿床原生晕地球化学特征及深部成矿远景评价.地学前缘,17(2):209-221