新疆和田团结峰铅锌矿床勘查模型初论
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摘要
新疆和田县团结峰铅锌矿床是西昆仑地区新发现的一处重要MVT型铅锌矿床,铅锌规模达中型,伴生银。在勘查工作实践及综合研究矿床模型基础上,总结了矿床的成矿地质条件、地球物理勘查模型、地球化学勘查模型和地质找矿标志。研究表明:赋矿地层为中侏罗统龙山组二段灰岩,次级NW向断裂控制了铅锌矿体的分布,硅钙面之上的层间构造是矿体的赋存部位。1∶50万水系沉积物测量勘查模型显示:矿区及周边主要异常元素有Au,Ag,Pb,Zn,Mn,Hg,Sb,Cu,Co等,矿区为Ag-Zn-Cu-Pb-Au-As-Sn-Cr-Fe-F异常范围内,元素异常套合较好。1∶5万水系物测量勘查模型显示:成矿元素Ag,Zn,Cu,As,Sn,Sb,Pb浓度分带明显,异常套合好,有明显的浓集区;1∶1万瞬变电磁测量勘查模型显示:矿区内主要岩层的电阻率差异很大,含铅锌矿化地层电阻率为4 660～6 030Ω·m,可形成中高阻异常;遥感蚀变信息勘查模型显示:矿区遥感异常以羟基为主,铁染零星,异常与构造套合较好。除了物化遥异常标志外,铁帽、次级NW向断裂、围岩蚀变也是重要的找矿标志。
Tuanjiefeng lead-zinc deposit in Hotan county which associated with silver,has reached middle scale,is an important Mississippi Valley-type lead-zinc deposit in West Kunlun. The article summarizes metallogenic geological conditions,geophysical exploration model,geochemical exploration model and geological prospecting criteria of the deposit on the basis of exploration practice and comprehensive study of the deposit model.The researches show that the 2 nd limestone of middle Jurassic,longshan formation is the ore-bearing strata. The interlayer structure above the silicon-calcium surface is where the ore body occurs and the secondary North-West fault controlled the distribution of lead-zinc ore bodies. The 1:500,000 sediment survey and exploration model shows that the main abnormal elements in and around the mining area are Au,Ag,Pb, Zn,Mn,Hg,Sb,Cu,Co and etc.The Element exceptions fit well and the mining area is within the abnormal range of Ag-Zn-Cu-Pb-Au-As-Sn-Cr-Fe-F.The 1:50000 drainage survey and exploration model shows that the concentration of metallogenic elements Ag,Zn,Cu,As,Sn,Sb and Pb were obviously distributed, and the abnormal combination was well done with obvious concentration area.The 1:10000 transient electromagnetic survey exploration model shows that there is great variability in resistivity of the main rocks in the mine. The formation resistivity of which contains lead-zinc mineralization is 4 660～6 030 Ω·m,can form high resistance resistivity anomaly. Remote sensing alteration information exploration model shows that the main remote sensing anomaly in mining area is hydroxyl.Scattered iron stains and the anomaly is in the same direction as the structure. In addition to geophysics, geochemistry, remote sensing anomaly markers, iron cap, secondary northwesterly fault and alterations of wall rocks are also important prospecting indicators.
Tuanjiefeng lead-zinc deposit in Hotan county which associated with silver,has reached middle scale,is an important Mississippi Valley-type lead-zinc deposit in West Kunlun. The article summarizes metallogenic geological conditions,geophysical exploration model,geochemical exploration model and geological prospecting criteria of the deposit on the basis of exploration practice and comprehensive study of the deposit model.The researches show that the 2 nd limestone of middle Jurassic,longshan formation is the ore-bearing strata. The interlayer structure above the silicon-calcium surface is where the ore body occurs and the secondary North-West fault controlled the distribution of lead-zinc ore bodies. The 1:500,000 sediment survey and exploration model shows that the main abnormal elements in and around the mining area are Au,Ag,Pb, Zn,Mn,Hg,Sb,Cu,Co and etc.The Element exceptions fit well and the mining area is within the abnormal range of Ag-Zn-Cu-Pb-Au-As-Sn-Cr-Fe-F.The 1:50000 drainage survey and exploration model shows that the concentration of metallogenic elements Ag,Zn,Cu,As,Sn,Sb and Pb were obviously distributed, and the abnormal combination was well done with obvious concentration area.The 1:10000 transient electromagnetic survey exploration model shows that there is great variability in resistivity of the main rocks in the mine. The formation resistivity of which contains lead-zinc mineralization is 4 660～6 030 Ω·m,can form high resistance resistivity anomaly. Remote sensing alteration information exploration model shows that the main remote sensing anomaly in mining area is hydroxyl.Scattered iron stains and the anomaly is in the same direction as the structure. In addition to geophysics, geochemistry, remote sensing anomaly markers, iron cap, secondary northwesterly fault and alterations of wall rocks are also important prospecting indicators.
引文
[1]董连慧,冯京,刘德权,等.新疆成矿单元划分方案研究[J].新疆地质,2010,28(1):1-15
[2]杜红星,魏永峰,薛春纪,等.多宝山铅锌矿床地质特征及地球化学研究[J].新疆地质,2012,30(1):52-57.
[3]杜红星,魏永峰,薛春纪,等.和田宝塔山铅锌矿地质特征与流体包裹体研究[J].新疆地质,2013,31(1):16-20.
[4]徐仕琪,冯京,田江涛,等。西昆仑落石沟一带铅锌矿成矿规律与找矿前景[J]新疆地质,2014,32(1):1-10.
[5]董连慧,徐兴旺,范廷宾,等.西昆仑火烧云超大型喷流-沉积成因碳酸盐型Pb-Zn矿的发现及区域成矿学意义[J].新疆地质,2015,33(1):41-50.
[6]陶玻,肖渊甫,罗峰,等.西昆仑团结峰铅锌矿床地质特征及成矿模式[J].矿产勘查,2017,8(5):765-771.
[7]新疆维吾尔自治区地质矿产局,编著.新疆维吾尔自治区区域地质志[M].北京:地质出版社,1993
[8]新疆维吾尔自治区地质矿产局,编著.新疆维吾尔自治区岩石地层[M].北京:中国地质大学出版社,1999
[9]魏永峰,赵志强,林美英,等.西昆仑尖山混杂岩带中硅质岩地球化学特征及沉积环境[J].新疆地质,2016,34(2):197-203.
[10]魏永峰,赵志强,林美英,等.西昆仑团结峰地区E-MORB残片的发现、地球化学特征及构造意义[J].新疆地质,2016,34(3):312-316.
[11]魏永峰,赵志强,林美英,等.西昆仑团结峰蛇绿混杂岩的地质特征及意义[A].//成都理工大学地球科学学院,资源环境与地学空间信息技术新进展学术论文集[C].北京:科学出版社,2016,13-15.
[12]魏永峰,肖渊甫,冯昌荣,等.西昆仑团结峰地区基性-超基性岩的发现及大地构造意义[J].新疆地质,2018,36(2):202-208.
[13]Leach D L and Sangster D F.Mississippi Valley-type lead posits[J].Geological Association of Canada Special Paper.1993,40:289-314.
[14]Leach D.L,Bradley D.C,Huston D,et al.Sediment-hosted leadzincdeposits in earth history[J].Economic Geology,2010,105:593-625.
[15]张长青,余金杰,毛景文,等.密西西比型(MVT)铅锌矿床研究进展[J].矿床地质,2009,28(2):195-210.
[16]Leach D L,Sangster D F,Kelley K D,Large R R,Garven G,Allen CR,Gartner J and Wallters S.Sediment-hosted lead-ank deposit;A global perspective[J].Economic Geology 100th Anniversary Volume,2005,561-607.
[17]匡文龙,刘继顺,朱自强,等.塔西南MVT型铅锌矿床成矿作用机制研究--以卡兰古铅锌矿为例[J].新疆地质,2003,21(1):136-140.
[18]施俊法,唐金荣,周平,等.世界找矿模型与矿产勘查[M].北京:地质出版社,2010,1-465.
[19]唐菊兴,邓世林,郑文宝,等.西藏墨竹工卡县甲玛铜多金属矿床勘查模型[J].矿床地质,2011,30(2):180-196.
[20]毛景文,张作衡,裴荣富.中国矿床模型概论[M].北京:地质出版社,2012,1-559.
(1)新疆地矿局,新疆矿产资源潜力评价成果报告2013
(1)新疆地质矿产勘查开发局第八地质大队.新疆和田县火烧云矿区铅锌矿勘探报告,2016
(1)陕西省地质调查院.新疆维吾尔自治区西昆仑叶尔羌河上游1∶50万水系沉积物测量地球化学图说明书,2002
(2)湖北省地质调查院.新疆维吾尔自治区西昆仑玉龙喀什河1∶50万水系沉积物测量地球化学图说明书,2002
(3)新疆地矿局.新疆矿产资源潜力评价成果报告,2013
[2]杜红星,魏永峰,薛春纪,等.多宝山铅锌矿床地质特征及地球化学研究[J].新疆地质,2012,30(1):52-57.
[3]杜红星,魏永峰,薛春纪,等.和田宝塔山铅锌矿地质特征与流体包裹体研究[J].新疆地质,2013,31(1):16-20.
[4]徐仕琪,冯京,田江涛,等。西昆仑落石沟一带铅锌矿成矿规律与找矿前景[J]新疆地质,2014,32(1):1-10.
[5]董连慧,徐兴旺,范廷宾,等.西昆仑火烧云超大型喷流-沉积成因碳酸盐型Pb-Zn矿的发现及区域成矿学意义[J].新疆地质,2015,33(1):41-50.
[6]陶玻,肖渊甫,罗峰,等.西昆仑团结峰铅锌矿床地质特征及成矿模式[J].矿产勘查,2017,8(5):765-771.
[7]新疆维吾尔自治区地质矿产局,编著.新疆维吾尔自治区区域地质志[M].北京:地质出版社,1993
[8]新疆维吾尔自治区地质矿产局,编著.新疆维吾尔自治区岩石地层[M].北京:中国地质大学出版社,1999
[9]魏永峰,赵志强,林美英,等.西昆仑尖山混杂岩带中硅质岩地球化学特征及沉积环境[J].新疆地质,2016,34(2):197-203.
[10]魏永峰,赵志强,林美英,等.西昆仑团结峰地区E-MORB残片的发现、地球化学特征及构造意义[J].新疆地质,2016,34(3):312-316.
[11]魏永峰,赵志强,林美英,等.西昆仑团结峰蛇绿混杂岩的地质特征及意义[A].//成都理工大学地球科学学院,资源环境与地学空间信息技术新进展学术论文集[C].北京:科学出版社,2016,13-15.
[12]魏永峰,肖渊甫,冯昌荣,等.西昆仑团结峰地区基性-超基性岩的发现及大地构造意义[J].新疆地质,2018,36(2):202-208.
[13]Leach D L and Sangster D F.Mississippi Valley-type lead posits[J].Geological Association of Canada Special Paper.1993,40:289-314.
[14]Leach D.L,Bradley D.C,Huston D,et al.Sediment-hosted leadzincdeposits in earth history[J].Economic Geology,2010,105:593-625.
[15]张长青,余金杰,毛景文,等.密西西比型(MVT)铅锌矿床研究进展[J].矿床地质,2009,28(2):195-210.
[16]Leach D L,Sangster D F,Kelley K D,Large R R,Garven G,Allen CR,Gartner J and Wallters S.Sediment-hosted lead-ank deposit;A global perspective[J].Economic Geology 100th Anniversary Volume,2005,561-607.
[17]匡文龙,刘继顺,朱自强,等.塔西南MVT型铅锌矿床成矿作用机制研究--以卡兰古铅锌矿为例[J].新疆地质,2003,21(1):136-140.
[18]施俊法,唐金荣,周平,等.世界找矿模型与矿产勘查[M].北京:地质出版社,2010,1-465.
[19]唐菊兴,邓世林,郑文宝,等.西藏墨竹工卡县甲玛铜多金属矿床勘查模型[J].矿床地质,2011,30(2):180-196.
[20]毛景文,张作衡,裴荣富.中国矿床模型概论[M].北京:地质出版社,2012,1-559.
(1)新疆地矿局,新疆矿产资源潜力评价成果报告2013
(1)新疆地质矿产勘查开发局第八地质大队.新疆和田县火烧云矿区铅锌矿勘探报告,2016
(1)陕西省地质调查院.新疆维吾尔自治区西昆仑叶尔羌河上游1∶50万水系沉积物测量地球化学图说明书,2002
(2)湖北省地质调查院.新疆维吾尔自治区西昆仑玉龙喀什河1∶50万水系沉积物测量地球化学图说明书,2002
(3)新疆地矿局.新疆矿产资源潜力评价成果报告,2013
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