马关都龙曼家寨锡锌矿床外围成矿预测
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摘要
云南都龙矿区位于云南省东南部的老君山花岗岩的西南侧,隶属文山壮族、苗族自治州马关县都龙镇,都龙锡锌多金属矿床是继云南个旧、广西大厂之后,发现的又一个超大型锡锌多金属矿床。云南华联锌铟股份有限公司,是一个生产有色金属的采、选、冶联合企业;主要开采对象是都龙曼家寨锡锌多金属矿床,为了扩大资源量,延长矿山服务年限,需要加强矿山深部和外围成矿预测研究。
本文从基础地质研究入手,通过对曼家寨、铜街、水洞厂、新寨、南秧田等各类型矿床的重点解剖,研究矿床地质特征、地球化学特征、研究矿床的控矿条件、分析找矿标志、结合地球化学异常、并应用数学地质以及计算机专业软件,对大量地学信息进行统计筛选和叠合,提取有用信息,加强对矿床预测的研究。
通过野外的地质调查结合前人的资料及我们的最新资料,主要取得以下成果:
1、通过薄片的鉴定在层状矽卡岩及块状硫化物矿体中广泛发现了基性火山岩,认为矽卡岩的原岩是玄武岩和凝灰岩;通过野外观察结合已有测试资料,分析研究认为老君山成矿区在加里东期处于强烈下降的深坳陷区,在寒武纪本区有火山喷流沉积成矿的迹象。
2、通过对硫同位素的分析发现,矿床硫源主要来自地幔,可能暗示火山喷流沉积成矿;对铅同位素的分析发现,铅的表面年龄差别比较大,说明老君山地区的成矿作用经历了多期、多阶段,为多成因复合成矿矿床;成矿作用经历了火山喷流沉积成矿阶段—区域变质初始聚集阶段—岩浆热液叠加富集成矿阶段。
3、通过研究矿床成因和地球化学异常的基础上,分析了控矿规律和总结了找矿标志,优选了4个找矿靶区。
DuLong mining area in Yunnan is located at the west-south of LaoJun mountain in southeast of Yunnan Province, it is belong to DuLong town,Maguan County,the Wenshan autonomous prefecture of Zhuang national minority and the Miao national minority. It is another ultra-large tin zinc polymetallic ore deposit except Gejiu Yunnan and DaChang Guangxi.The Limited liability company of HuaLian zinc and idium YunNan,is a integrated enterprise which product non-ferrous metal include pincking,choosing and smelting, the main mining object is the polymetallic ore deposit of tin-zinc in Man JiaZhai DuLong. In order to expand the amount of resources and extend the service life of mine, needs to strengthen the mineralization forecast research at the mine depth portion and the periphery.
This article research from foundation geology, through to the key dissection of various types ore deposit include Man JiaZhai, TongJie, Shui DongChang, XinZhai, Nan Yangtian and so on. Then strengthens the mineralization forecast research by carring on statistical and superposition the information of geology, through to researching the feature of ore deposit geological, the characteristic of geochemistry, the ore-control factor of the ore deposit,analyzing the symbol of prospecting, integrating the geochemical and applying mathematics geology as well as the mining software.
Unifies predecessor's data and our newest date which get from the open country geological investigation, mainly yields following result:
No1. Had widely discovered basic volcanic rock from the stratified skaro and the massive sulfide ore body through to determination of thin section. Thought the protolith of skaro is the basalt and the tuff, so thought the protolith of skaro is the basalt and the tuff. Had the test data through the field observation union, thought the LaoJun mountain area of mineralization in the deep depression area of Galedomian period and had the sign of volcano eruption sedimentary in Cambrian period.
No2.Analyzed the sulfur isotope had discovered the sulfur source of the ore deposit mainly comes from the mantle, it is possibly suggests the mineralization had the relation to the volcano eruption sedimentary; discovered the superficial age of lead is quite big through to analyzing the lead isotope, it showed the mineralization hasd experienced the multi-times and the multi-stages in the LaoJun mountain area, it is a multi-origin compound ore deposit. It has experienced the stage of the volcano eruption sedimentary - the stage of the new metamorphic focusing in this region - the stage of supraposition of magmatic hydrothermal and enrichment mineralization.
No3.At last we had pointed out 4 optimal prospecting area to the researching to the ore deposit about the origin and the geochemical,analyzed the rule of ore-control and summarized the symbol of prospecting.
本文从基础地质研究入手,通过对曼家寨、铜街、水洞厂、新寨、南秧田等各类型矿床的重点解剖,研究矿床地质特征、地球化学特征、研究矿床的控矿条件、分析找矿标志、结合地球化学异常、并应用数学地质以及计算机专业软件,对大量地学信息进行统计筛选和叠合,提取有用信息,加强对矿床预测的研究。
通过野外的地质调查结合前人的资料及我们的最新资料,主要取得以下成果:
1、通过薄片的鉴定在层状矽卡岩及块状硫化物矿体中广泛发现了基性火山岩,认为矽卡岩的原岩是玄武岩和凝灰岩;通过野外观察结合已有测试资料,分析研究认为老君山成矿区在加里东期处于强烈下降的深坳陷区,在寒武纪本区有火山喷流沉积成矿的迹象。
2、通过对硫同位素的分析发现,矿床硫源主要来自地幔,可能暗示火山喷流沉积成矿;对铅同位素的分析发现,铅的表面年龄差别比较大,说明老君山地区的成矿作用经历了多期、多阶段,为多成因复合成矿矿床;成矿作用经历了火山喷流沉积成矿阶段—区域变质初始聚集阶段—岩浆热液叠加富集成矿阶段。
3、通过研究矿床成因和地球化学异常的基础上,分析了控矿规律和总结了找矿标志,优选了4个找矿靶区。
DuLong mining area in Yunnan is located at the west-south of LaoJun mountain in southeast of Yunnan Province, it is belong to DuLong town,Maguan County,the Wenshan autonomous prefecture of Zhuang national minority and the Miao national minority. It is another ultra-large tin zinc polymetallic ore deposit except Gejiu Yunnan and DaChang Guangxi.The Limited liability company of HuaLian zinc and idium YunNan,is a integrated enterprise which product non-ferrous metal include pincking,choosing and smelting, the main mining object is the polymetallic ore deposit of tin-zinc in Man JiaZhai DuLong. In order to expand the amount of resources and extend the service life of mine, needs to strengthen the mineralization forecast research at the mine depth portion and the periphery.
This article research from foundation geology, through to the key dissection of various types ore deposit include Man JiaZhai, TongJie, Shui DongChang, XinZhai, Nan Yangtian and so on. Then strengthens the mineralization forecast research by carring on statistical and superposition the information of geology, through to researching the feature of ore deposit geological, the characteristic of geochemistry, the ore-control factor of the ore deposit,analyzing the symbol of prospecting, integrating the geochemical and applying mathematics geology as well as the mining software.
Unifies predecessor's data and our newest date which get from the open country geological investigation, mainly yields following result:
No1. Had widely discovered basic volcanic rock from the stratified skaro and the massive sulfide ore body through to determination of thin section. Thought the protolith of skaro is the basalt and the tuff, so thought the protolith of skaro is the basalt and the tuff. Had the test data through the field observation union, thought the LaoJun mountain area of mineralization in the deep depression area of Galedomian period and had the sign of volcano eruption sedimentary in Cambrian period.
No2.Analyzed the sulfur isotope had discovered the sulfur source of the ore deposit mainly comes from the mantle, it is possibly suggests the mineralization had the relation to the volcano eruption sedimentary; discovered the superficial age of lead is quite big through to analyzing the lead isotope, it showed the mineralization hasd experienced the multi-times and the multi-stages in the LaoJun mountain area, it is a multi-origin compound ore deposit. It has experienced the stage of the volcano eruption sedimentary - the stage of the new metamorphic focusing in this region - the stage of supraposition of magmatic hydrothermal and enrichment mineralization.
No3.At last we had pointed out 4 optimal prospecting area to the researching to the ore deposit about the origin and the geochemical,analyzed the rule of ore-control and summarized the symbol of prospecting.
引文
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[2]徐克勤,涂光炽,花岗岩地质和成矿关系[M].江苏科技出版社,1984
[3]中国有色金属工业总公司地质勘查总局,云南老君山锡锌多金属矿床地质[M].1997
[4]范永香,阳正熙,成矿规律与成矿预测[M].中国矿业大学出版社,2005
[5]赵斌,中国主要矽卡岩及矽卡岩矿床特征[M].北京科学技术出版社,1992
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[9]涂光炽,我国西南地区两个别具一格的成矿带(域)[J],矿物岩石地球化学通报,2002,21(1):1-2
[10]颜丹平,周美夫,王焰,汪昌亮,赵太平,都龙-Song Chay变质穹隆体变形与构造年代—南海盆地北缘早期扩张作用始于华南地块张裂的证据[J],中国地质大学学报,2005,30(04):402-412
[11]戴福盛,滇东南锡多金属矿产区域分布规律[J],地质与勘探,1990,(04):17-21
[12]锺大赉,吴根耀,季建清,张旗,丁林,滇东南发现蛇绿岩[J],科学通报,1998,43(13):1365-1370
[13]邹日,朱炳泉,孙大中,常向阳,红河成矿带壳幔演化与成矿作用的年代学研究[J],地球化学,1997,26(02):46-56
[14]张玉泉,谢应雯,哀牢山—金沙江富碱侵入岩年代学和Nd,Sr同位素特征[J],中国科学D辑,1997,27(4):289-293
[15]罗君烈,滇东南锡、钨、铅锌、银矿床的成矿模式[J],云南地质,1995,14(4):319-332
[16]吕伟,冯明刚,胡长寿,滇东南南温河地区猛硐岩群变质作用特征[J],云南地质,2001,20(1):25-33
[17]宋焕斌,云南东南都都龙锡石一硫化物型矿床的成矿特征[J],矿床地质,1989,8(4):29-38
[18]官容生,滇东南构造岩浆带花岗岩体的含矿性探讨[J],矿物岩石,1991,11(1):92-101
[19]忻建刚、袁奎荣,云南都龙隐伏花岗岩的特征及其或矿作用[J],桂林冶金地质学院学报,1993,13(2):121-129
[20]吴根耀,吴浩若,钟大赉,邝国敦,季建清,滇桂交界处古特提斯的洋岛和岛弧火山岩[J],现代地质,2000,14(04):393-400
[21]刘玉平,李朝阳,谷团,王金良,都龙锡锌多金属矿床成矿物质来源的同位素示踪[J],地质地球化学,2000,28(4):75-82
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