广西铜坑富铟锡矿床中闪锌矿的微量元素赋存特征
|
摘要
位于桂西北丹池成矿带上的大厂锡多金属矿床是世界重要的铟产地,其铟元素主要赋存在闪锌矿中,而闪锌矿往往与黄铜矿及磁黄铁矿共生。以闪锌矿为对象,在野外、室内矿物学观察基础上,通过高精度电子探针和微量元素分析为手段,研究闪锌矿微量元素之间相互关系及其形成原因。根据实验结果,得出以下结论:铜坑矿床中的闪锌矿富含大量的微量元素,闪锌矿独特的四面体结构以及较高的Fe含量有利于微量元素的进入,微量元素的相关性不仅反映了元素含量的此消彼长,更反映了成矿时不同的物理化学条件。通过对微量元素相关性及闪锌矿"骨骼"现象的研究,推测闪锌矿丰富的微量元素及"骨骼"现象并非闪锌矿同期产物,而是与岩浆有关的晚期富Cu、Sn、In流体叠加交代早阶段含Cd闪锌矿的结果。一方面,大量的微量元素进入到闪锌矿晶格中;另一方面,岩浆带来的大量Cu元素捕获原有闪锌矿,原有闪锌矿在黄铜矿中重结晶形成雪花状和星状等"骨骼"现象。
The Dachang tin-pollymetallic deposit,which located in Danchi metallogenic belt of northwest Guangxi,is an important original place of indium. The element of In is hosted in sphalerite mostly,while the sphalerite,chalcopyrite and pyrrhotite intergrow with each other regularly. The study on correlation between different elements and forming cause of sphalerite has been taken by mineralogical observation,elements analysis test and electron microprobe analysis test. According to the tests,some conclusions have been obtained,there are a large number of trace elements in sphalerite in Tongkeng deposit; The trace elements get into the sphalerite because of its individual tetrahedral structure and large amount of the element of Fe. the correlation of trace elements not only show different changes of element content but also show different physical and chemical ore-forming conditions. According to the study on the correlation of elements and skeletal crystals of sphalerite,it can be inferred that a large amount of trace elements and skeletal crystals of sphalerite are results of the Cu-rich,Sn-rich and In-rich fluid superpose on early Cd contained sphalerite instead of forming with sphalerite in the same time. On one hand,a large amout of trace elements get into the lattice of spalerite; On the other hand,there are snowflake shape and star shape of skeletal crystals of sphalerite when sphalerite recrystal in chalcopyrite,for sphalerite is trapped by element of Cu,which brought by magma.
The Dachang tin-pollymetallic deposit,which located in Danchi metallogenic belt of northwest Guangxi,is an important original place of indium. The element of In is hosted in sphalerite mostly,while the sphalerite,chalcopyrite and pyrrhotite intergrow with each other regularly. The study on correlation between different elements and forming cause of sphalerite has been taken by mineralogical observation,elements analysis test and electron microprobe analysis test. According to the tests,some conclusions have been obtained,there are a large number of trace elements in sphalerite in Tongkeng deposit; The trace elements get into the sphalerite because of its individual tetrahedral structure and large amount of the element of Fe. the correlation of trace elements not only show different changes of element content but also show different physical and chemical ore-forming conditions. According to the study on the correlation of elements and skeletal crystals of sphalerite,it can be inferred that a large amount of trace elements and skeletal crystals of sphalerite are results of the Cu-rich,Sn-rich and In-rich fluid superpose on early Cd contained sphalerite instead of forming with sphalerite in the same time. On one hand,a large amout of trace elements get into the lattice of spalerite; On the other hand,there are snowflake shape and star shape of skeletal crystals of sphalerite when sphalerite recrystal in chalcopyrite,for sphalerite is trapped by element of Cu,which brought by magma.
引文
1陈毓川,黄民智.大厂锡矿地质[M].北京:地质出版社,1993Chen Yuchuan,Huang Minzhi. Tin ore geology of Dachang[M].Beijing:Geological Publishing House,1993
2 涂光炽.分散元素地球化学及成矿机制[M].北京:地质出版社,2004Tu Guangchi. Geochemical and metallogenic mechanism of dispersed elements[M]. Beijing:Geological Publishing House,2004
3 李锡林,章振根.大厂矿田分散元素的分布特征及地球化学[J].地质与勘探,1981(7):21-27Li Xilin,Zhang Zhengen. Distribution characteristics and geochemistry of dispersed elements in tin polymetallic ore field of Dachang[J].Geology and exploration,1981(7):21-27
4 卜国基.浅谈铟、镉在大厂矿田的分布及综合回收前景[J].南方国土资源,2000,13(1):37-40Bu Guoji. Distribution and comprehensive recovery prospect of indium and cadmium in Dachang mining fields[J]. Southern Land Resources,2000,13(1):37-40
5 李晓峰,杨锋,陈振宇,等.广西大厂锡矿铟的地球化学特征及成因机制初探[J].矿床地质,2010,29(5):903-914Li Xiaofeng,Yang Feng,Chen Zhenyu,et al. Geochemical characteristics and Genesis mechanism of indium tin ore in Dachang,Guangxi Province[J]. Minaral Deposit,2010,29(5):903-914
6 范森葵,黎修旦,成永生,等.广西大厂矿区脉岩的地球化学特征及其构造和成矿意义[J].地质与勘探,2010,46(5):828-835Fan Senkui,Li Xiudan,Cheng Yongsheng,et al. Geochemical characteristics,structure and mineralization significance of vein rocks in Dachang mining area,Guangxi[J]. Geology and Exploration,2010,46(5):828-835
7 皮桥辉,胡瑞忠,王登红,等.广西大厂锡多金属矿田西矿带稀散元素铟的富集规律研究——来自矿石组构和闪锌矿地球化学的证据[J].矿床地质,2015,34(2):379-396Pi Qiaohui,Hu Ruizhong,Wang Denghong,et al. Enrichment of indium in west ore belt of Dachang orefield:evidence from ore textures and sphalerite geochemistry[J]. Minaral Deposit,2015,34(2):379-396
8 蔡明海,梁婷,彭振安,等.大厂锡多金属矿田地质与成矿[M].北京:地质出版社,2014Cai Minghai,Liang Ting,Peng Zhen'an,et al. Geology and metallogenic of tin polymetallic ore field in Dachang[M]. Beijing:Geological Publishing House,2014
9 蔡明海,何龙清,刘国庆,等.广西大厂锡矿田侵入岩SHRIMP锆石U-Pb年龄及其意义[J].地质论评,2006,52(3):409-414Cai Minghai,He Longqing,Liu Guoqing,et al. SHRIMP zircon U-Pb dating of the intrusive rocks in the Dachang tin-polymetallic ore field,Guangxi and their geological significance[J]. Geological Review,2006,52(3):409-414
10 刘英俊.元素地球化学[M].北京:科学出版社,1984Liu Yingjun. Elemental geochemistry[M]. Beijing:Science Press,1984
11 叶庆同.闪锌矿的化学成分特征及其地质意义[C]//中国地质科学院矿床地质研究所文集(14).北京:中国地质科学院矿床地质研究所,1985:33-49Ye Qingtong. Chemical composition of sphalerite from Pb-Zn deposits in China and its geological significance[C]//Institute of Mineral Deposits,Chinese Academy of Geologocal Sciences(14). Beijing:Chinese Academy of Geologocal Sciences,1985:33-49
12 刘铁庚,叶霖,周家喜,等.闪锌矿中的Cd主要类质同象置换Fe而不是Zn[J].矿物学报,2010,30(2):179-184Liu Tiegeng,Ye Lin,Zhou Jiaxi,et al. Cd in sphalerite is mainly isomorphic isomorphic replacement of Fe instead of Zn[J]. Acta Mineralogica Sinica,2010,30(2):179-184
13 Hiroyasu M,Shunso I. Trace elements of Indium-bearing sphalerite from tin-polymetallic deposits in Bolivia,China and Japan:a femtosecond LA-ICPMS study[J]. Ore Geology Reviews,2013,53:223-243
14 涂光炽.分散元素成矿机制研究获重大进展[J].中国科学院院刊,2003,18(5):358-361Tu Guangchi. Ore-forming mechanism of the dispersed elements[J]. Journal of the Chinese Academy of Sciences,2003,18(5):358-361
15 张乾.利用方铅矿、闪锌矿的微量元素图解法区分铅锌矿床的成因类型[J].地质地球化学,1987(9):66-68Zhang Qian. Distinguishing the genetic types of lead-zinc deposits by using the trace element illustration method of Galena and Sphalerite[J]. Geological Geochemistry,1987(9):66-68
16 朱笑青,张乾,何玉良,等.富铟及贫铟矿床成矿流体中铟与锡铅锌的关系研究[J].地球化学,2006,35(1):6-12Zhu Xiaoqing,Zhang Qian,He Yuliang,et al. Relationships between indium and tin,zinc and lead in ore-forming fluid from the indium-rich and poor deposits in china[J]. Geochemical,2006,35(1):6-12
17 Wood S A,Samson I M. The aqueous geochemistry of gallium,germanium,indium and scandium[J]. Ore Geology Reviews,2006,28(1):57-102
18 罗卫,尹展,戴塔根.广西大厂锡多金属矿田铟富集规律初探[J].金属矿山,2009(8):69-71Luo Wei,Yin Zhan,Dai Tagen. Preliminary discussion on indium enrichment regularity of Dachang poly metallic tin ore-fields in Guangxi[J]. Metalmine,2009(8):69-71
19 张乾,刘志浩,战新志,等.分散元素铟富集的矿床类型和矿物专属性[J].矿床地质,2003,22(3):309-316Zhang Qian,Liu Zhihao,Zhan Xinzhi,et al. Specialization of ore deposit types and minerals for enrichment of indium[J]. Minaral Deposit,2003,22(3):309-316
20 戴塔根,杜高峰,张德贤,等.广西大厂锡多金属矿床中铟的富集规律[J].中国有色金属学报,2012,22(3):703-714Dai Tagen,Du Gaofeng,Zhang Dexian,et al. Indium distribution in Dachang tin-polymetallic deposit of Guangxi Province[J]. Chinese Journal of Nonferrous Metals,2012,22(3):703-714
21 Sugaki A,Kitakaze A,Kojima S. Bulk compositions of intimate intergrowths of chalcopyrite and sphalerite and their genetic implications[J]. Mineralium Deposita,1987,22(1):26-32
22 Marignac C. Sphalerite stars in chalcopyrite:Are they always the result of an unmixing process?[J]. Mineralium Deposita,1989,24(3):176-182
23 Wiggins L B,Craig J R. Reconnaissance of the Cu-Fe-Zn-S system:sphalerite phase relationships[J]. Economic Geology,1980,75:742-751
24 Hutchison M N,Scott S D. Sphalerite geobarometry in the Cu-FeZn-S system[J]. Economic Geology,1981,76:143-153
25 Kojima S,Asahiko S. Phase relations in the central portion of the Cu-Fe-Zn-S system between 800 DEG and 500 DEG C[J]. Mineralogical Journal,1984,12(1):15-28.
26 Barton P B Jr. Some ore textures involving sphalerite from the Furutobe mine,Akita Prefecture,Japan[J]. Mining Geology,1987,28:293-300
27 Oliveira V,Matos J,Bengala M,et al. Geology and geophysics as successful tools in the discovery of the Lagoa Salgada Orebody(Sado Tertiary Basin-Iberian Pyrite Belt),Grandola,Portugal[J]. Mineralium Deposita,1997,33(1-2):170-187
28 Oliveira D P S,Matos J X,Rosa J P. The Lagoa Salgada Orebody,Iberian Pyrite Belt,Portugal[J]. Economic Geology,2011,106:1111-1128
29 Murao S,Furuno M,Uehida A C. Geology of indium deposits:a review[J]. Mining Geology,1991,41(l):l-13
30 Ohta E. Occurrence and chemistry of indium-containing minerals from the Toyoha Mine, Hokkaido, Japan[J]. Mining Geology,1989,39:355-372
31 Sinclair W D,Kooiman G J A,Martin D A,et al. Geology,geochemistry and mineralogy of indium resources at Mount Pleasant,New Brunswick,Canada[J]. Ore Geology Reviews,2006,28(1):123-145
2 涂光炽.分散元素地球化学及成矿机制[M].北京:地质出版社,2004Tu Guangchi. Geochemical and metallogenic mechanism of dispersed elements[M]. Beijing:Geological Publishing House,2004
3 李锡林,章振根.大厂矿田分散元素的分布特征及地球化学[J].地质与勘探,1981(7):21-27Li Xilin,Zhang Zhengen. Distribution characteristics and geochemistry of dispersed elements in tin polymetallic ore field of Dachang[J].Geology and exploration,1981(7):21-27
4 卜国基.浅谈铟、镉在大厂矿田的分布及综合回收前景[J].南方国土资源,2000,13(1):37-40Bu Guoji. Distribution and comprehensive recovery prospect of indium and cadmium in Dachang mining fields[J]. Southern Land Resources,2000,13(1):37-40
5 李晓峰,杨锋,陈振宇,等.广西大厂锡矿铟的地球化学特征及成因机制初探[J].矿床地质,2010,29(5):903-914Li Xiaofeng,Yang Feng,Chen Zhenyu,et al. Geochemical characteristics and Genesis mechanism of indium tin ore in Dachang,Guangxi Province[J]. Minaral Deposit,2010,29(5):903-914
6 范森葵,黎修旦,成永生,等.广西大厂矿区脉岩的地球化学特征及其构造和成矿意义[J].地质与勘探,2010,46(5):828-835Fan Senkui,Li Xiudan,Cheng Yongsheng,et al. Geochemical characteristics,structure and mineralization significance of vein rocks in Dachang mining area,Guangxi[J]. Geology and Exploration,2010,46(5):828-835
7 皮桥辉,胡瑞忠,王登红,等.广西大厂锡多金属矿田西矿带稀散元素铟的富集规律研究——来自矿石组构和闪锌矿地球化学的证据[J].矿床地质,2015,34(2):379-396Pi Qiaohui,Hu Ruizhong,Wang Denghong,et al. Enrichment of indium in west ore belt of Dachang orefield:evidence from ore textures and sphalerite geochemistry[J]. Minaral Deposit,2015,34(2):379-396
8 蔡明海,梁婷,彭振安,等.大厂锡多金属矿田地质与成矿[M].北京:地质出版社,2014Cai Minghai,Liang Ting,Peng Zhen'an,et al. Geology and metallogenic of tin polymetallic ore field in Dachang[M]. Beijing:Geological Publishing House,2014
9 蔡明海,何龙清,刘国庆,等.广西大厂锡矿田侵入岩SHRIMP锆石U-Pb年龄及其意义[J].地质论评,2006,52(3):409-414Cai Minghai,He Longqing,Liu Guoqing,et al. SHRIMP zircon U-Pb dating of the intrusive rocks in the Dachang tin-polymetallic ore field,Guangxi and their geological significance[J]. Geological Review,2006,52(3):409-414
10 刘英俊.元素地球化学[M].北京:科学出版社,1984Liu Yingjun. Elemental geochemistry[M]. Beijing:Science Press,1984
11 叶庆同.闪锌矿的化学成分特征及其地质意义[C]//中国地质科学院矿床地质研究所文集(14).北京:中国地质科学院矿床地质研究所,1985:33-49Ye Qingtong. Chemical composition of sphalerite from Pb-Zn deposits in China and its geological significance[C]//Institute of Mineral Deposits,Chinese Academy of Geologocal Sciences(14). Beijing:Chinese Academy of Geologocal Sciences,1985:33-49
12 刘铁庚,叶霖,周家喜,等.闪锌矿中的Cd主要类质同象置换Fe而不是Zn[J].矿物学报,2010,30(2):179-184Liu Tiegeng,Ye Lin,Zhou Jiaxi,et al. Cd in sphalerite is mainly isomorphic isomorphic replacement of Fe instead of Zn[J]. Acta Mineralogica Sinica,2010,30(2):179-184
13 Hiroyasu M,Shunso I. Trace elements of Indium-bearing sphalerite from tin-polymetallic deposits in Bolivia,China and Japan:a femtosecond LA-ICPMS study[J]. Ore Geology Reviews,2013,53:223-243
14 涂光炽.分散元素成矿机制研究获重大进展[J].中国科学院院刊,2003,18(5):358-361Tu Guangchi. Ore-forming mechanism of the dispersed elements[J]. Journal of the Chinese Academy of Sciences,2003,18(5):358-361
15 张乾.利用方铅矿、闪锌矿的微量元素图解法区分铅锌矿床的成因类型[J].地质地球化学,1987(9):66-68Zhang Qian. Distinguishing the genetic types of lead-zinc deposits by using the trace element illustration method of Galena and Sphalerite[J]. Geological Geochemistry,1987(9):66-68
16 朱笑青,张乾,何玉良,等.富铟及贫铟矿床成矿流体中铟与锡铅锌的关系研究[J].地球化学,2006,35(1):6-12Zhu Xiaoqing,Zhang Qian,He Yuliang,et al. Relationships between indium and tin,zinc and lead in ore-forming fluid from the indium-rich and poor deposits in china[J]. Geochemical,2006,35(1):6-12
17 Wood S A,Samson I M. The aqueous geochemistry of gallium,germanium,indium and scandium[J]. Ore Geology Reviews,2006,28(1):57-102
18 罗卫,尹展,戴塔根.广西大厂锡多金属矿田铟富集规律初探[J].金属矿山,2009(8):69-71Luo Wei,Yin Zhan,Dai Tagen. Preliminary discussion on indium enrichment regularity of Dachang poly metallic tin ore-fields in Guangxi[J]. Metalmine,2009(8):69-71
19 张乾,刘志浩,战新志,等.分散元素铟富集的矿床类型和矿物专属性[J].矿床地质,2003,22(3):309-316Zhang Qian,Liu Zhihao,Zhan Xinzhi,et al. Specialization of ore deposit types and minerals for enrichment of indium[J]. Minaral Deposit,2003,22(3):309-316
20 戴塔根,杜高峰,张德贤,等.广西大厂锡多金属矿床中铟的富集规律[J].中国有色金属学报,2012,22(3):703-714Dai Tagen,Du Gaofeng,Zhang Dexian,et al. Indium distribution in Dachang tin-polymetallic deposit of Guangxi Province[J]. Chinese Journal of Nonferrous Metals,2012,22(3):703-714
21 Sugaki A,Kitakaze A,Kojima S. Bulk compositions of intimate intergrowths of chalcopyrite and sphalerite and their genetic implications[J]. Mineralium Deposita,1987,22(1):26-32
22 Marignac C. Sphalerite stars in chalcopyrite:Are they always the result of an unmixing process?[J]. Mineralium Deposita,1989,24(3):176-182
23 Wiggins L B,Craig J R. Reconnaissance of the Cu-Fe-Zn-S system:sphalerite phase relationships[J]. Economic Geology,1980,75:742-751
24 Hutchison M N,Scott S D. Sphalerite geobarometry in the Cu-FeZn-S system[J]. Economic Geology,1981,76:143-153
25 Kojima S,Asahiko S. Phase relations in the central portion of the Cu-Fe-Zn-S system between 800 DEG and 500 DEG C[J]. Mineralogical Journal,1984,12(1):15-28.
26 Barton P B Jr. Some ore textures involving sphalerite from the Furutobe mine,Akita Prefecture,Japan[J]. Mining Geology,1987,28:293-300
27 Oliveira V,Matos J,Bengala M,et al. Geology and geophysics as successful tools in the discovery of the Lagoa Salgada Orebody(Sado Tertiary Basin-Iberian Pyrite Belt),Grandola,Portugal[J]. Mineralium Deposita,1997,33(1-2):170-187
28 Oliveira D P S,Matos J X,Rosa J P. The Lagoa Salgada Orebody,Iberian Pyrite Belt,Portugal[J]. Economic Geology,2011,106:1111-1128
29 Murao S,Furuno M,Uehida A C. Geology of indium deposits:a review[J]. Mining Geology,1991,41(l):l-13
30 Ohta E. Occurrence and chemistry of indium-containing minerals from the Toyoha Mine, Hokkaido, Japan[J]. Mining Geology,1989,39:355-372
31 Sinclair W D,Kooiman G J A,Martin D A,et al. Geology,geochemistry and mineralogy of indium resources at Mount Pleasant,New Brunswick,Canada[J]. Ore Geology Reviews,2006,28(1):123-145
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |