云南大坪金矿白钨矿惰性气体同位素组成及其成矿意义
Noble gases isotopic composition of fluid inclusions in scheelites collected from Daping gold mine, Yunnan province, China, and its application for ore genesis
-
摘要: 利用高真空气相质谱系统测定了云南大坪金矿白钨矿流体包裹体的惰性气体同位素组成,得出其~3He/~4He为(0．988～1．424)×10~(-6),平均1．205×10~(-6),相应R/R_a为0．706～1．018,平均0．898,~(40)Ar/~(36)Ar为1801．8～2663．8,远高于大气~(40)Ar/~(36)Ar;~(20)Ne/~(22)Ne和~(21)Ne/~(22)Ne分别为9．600～11．56和0．028～0．0467,而~(134)Xe/~(132)Xe和~(136)Xe/~(132)Xe分别为0．394～0．692和0．301～0．462,均高于其相应大气值;He-Ar、Ne和Xe同位素组成显示大坪金矿成矿流体主要由深源地幔流体和地壳流体组成,其中基本不含大气饱和水。大坪金矿的形成与该区壳幔相互作用有关:该区喜山早期地壳拉张引起的地幔岩浆上涌和去气形成深源地幔流体,下地壳在上涌地幔烘烤下形成富含CO_2、~(40)Ar、~(134)Xe、~(136)Xe和~4He的地壳流体,它们混合以后沿韧性剪切带上升,水-岩反应和沸腾作用导致矿质沉淀。因此,大坪金矿属于剪切带控制的深源热液型金矿。
-
-
[1] 毕献武,胡瑞忠,何明友.1996a.哀牢山金矿带ESR年龄测定及其地质意义.科学通报.41(4):1301-1303
[2] Ballentine CJ,Burgess R and Marry B.2002. Tracing fluid origin,transport and interaction in the crust.In:Porcelli et al(ed).Noble Gases in Geochemistry and Cosmochemistry,Reviews in Mineralogy & Geochemistry,Vol.47. Washington,539 -614
[3] Baptiste PJ and Fouquet Y.1996. Abundance and isotopic composition of helium in hydrothermal sulfides from the East Pacific Rise at 13°N.Geochim Cosmochim Acta,60:87-93
[4] 毕献武,胡瑞忠,何明友.1996b.哀牢山金矿带的成矿时代及其成矿机制探讨.地质地球化学,24(1):16-19
[5] 毕献武,胡瑞忠,何明友.1997哀牢山金矿带主要金矿床成矿流体特征.矿物学报,17(4):435-441
[6] Bi XW and Hu RZ,1999. Mineralizer sourece and its constrains on gold mineralization of the Daping gold deposit,Yunnan.Acta Mineralogica Sinica,119 (1):28-33 (in Chinese with English abstract)
[7] Bi XW,Hu RZ and He MY.1996a.ESR dating of Ailaoshan gold metallogenic belt and geologic significance.Chinese Science Bulletin,41 (18):1546-1549
[8] 毕献武,胡瑞忠.1999.云南大坪金矿床矿化剂来源及其对金成矿的制约.矿物学报,19(1):28-33
[9] 曹志敏,李佑国,任建国,李保华,徐士进,王汝成,正路澈也,金田博彰,小林祥一.2002.雪宝顶绿柱石:白钨矿状矿床富挥发分成矿流体特征及其示踪与测年,中国科学(D),32(1):64-72
[10] Bi XW,Hu RZ,and He MY.1996b.An approach to the metallogenic era and belt and the metallogenic mechanism of Aialaoshan gold belt.Geology-Geochemistry,24 (1):16-19 (in Chinese with English abstract)
[11] 韩润生,金世昌,雷丽.1997.云南元阳大坪改造型金矿床的成矿热液系统地球化学.矿物学报,17(3):337-344
[12] Bi XW,Hu RZ and He MY.1997. Characteristics of ore-forming fluid of three gold deposits in Aialaoshan gold metallogenic belt.Acta Mineralogica Sinica,17 (4):435-441 (in Chinese with English abstract)
[13] Brugger J,Lahaye Y,Costa S,et al.2000.lnhomogeneous of REE in scheeltite and dynamics of Archaean hydrothermal systems (Mt.Charlotte and Drysdale gold deposits,Western Australia).Contrib.Mineral.Petrol.,139(3):251 -264
[14] 侯增谦,李延河,艾永德,张琦玲,唐绍华.1999.冲绳海槽海底活动热水成矿系统中的地幔氦:氦-氖同位素证据.中国科学,29:285-292
[15] Brugger J,Maas R.LahayeY,et al.2002. Origins of Nd-Sr-Pb isotopic vuriations in single scheelite grains from Archaean gold deposits,Western Australia.Chemical Geology,182 (2-4):203-225
[16] 胡瑞忠,毕献武,Turner G等.1997.云南马厂箐铜矿黄铁矿流体包裹体He-Ar同位素体系.中国科学(D辑),27(6):503-508
[17] Burnard PG,Hu Ruizhong,Turner G,et al.1999. Mantle,crustal and atmospheric noble gases in Ailaoshan gold deposits,Yunnan Province,China.Geochimica et Cosmochimica Acta,63:1595 -1604
[18] 胡瑞忠,毕献武.1999.哀牢山成矿带成矿流体的He和Ar同位素地球化学.中国科学(D辑),29(4):321-330
[19] Cao ZM,Zheng JB,Li YG,Ren JG,Xu SJ,Wang RC,Shoji T,Kaned H and Kabayashi S.2002. Geologic and geochemical features of the volatile-rich ore fluid and its tracing and dating in the Xuebaoding Beryl-Scheelite Vein Deposit,China.Science in China (Series D),45 (8):719 -729
[20] 胡瑞忠,钟宏,叶造军等.1998,金顶超大型铅锌矿床氦氩同位素地球化学.中国科学(D辑),28(3):208-213
[21] Graham DW.2002. Noble gas isotope geochemistry of mid-ocean ridge and ocean island basalts:Characterization of mantle source reservoirs.In:Porcelli et al.(ed).Noble Gases in Geochemistry and Cosmochemistry,Reviews in Mineralogy & Geochemistry,Vol.47,Washington,247-317
[22] 胡云中,唐尚鹑,王海平等.1995,哀牢山金矿地质.地质出版社,北京:106-250
[23] Han RS,Jin SC and Lei L.1997. Geochemistry of ore-forming hydrothermal system of Daping reworked gold deposit,Yuanyang,Yunnan.Acta Mineralogica Sinica,17 (3):337-344 (in Chinese with English abstract)
[24] 金世昌,韩润生.1994.改造型矿床的成矿热液系统的地球化学特征:以元阳金矿床为例.云南地质,13(1):17-22
[25] 李定谋,曹志敏,覃功炯等.1998.哀牢山蛇绿昆杂岩带金矿床.北京:地质出版社,52-115
[26] Hilton DR,Fischer TP and Marty B.2002. Noble gases and volatile recycling at subduction zones.In:Porcelli et al(ed).Noble Gases in Geochemistry and Cosmochemistry,Reviews in Mineralogy &Geochemistry,Vol 47. Washington,319-370
[27] Hou ZQ,Li YH,Ai YD,Zhang QL and Tang SH.1999. Mantle helium in submarine hydrothermal system in the Okinawa trough:He-Ne isotope evidence.Science in China (Series D),29:285 -292 (in Chinese)
[28] 孙晓明,Norman DI,孙凯等.1999.粤中长坑金银矿流体N2-Ar-He示踪体系及来源.中国科学,29(3):241-246
[29] Hu RZ and Bi XW.1999. He and Ar isotope geochemistry of ore-forming fluid in Ailaoshan gold metallogenic belt.Science in China (series D),29(4):321 -330 (in Chinese)
[30] Hu RZ,Bi XW,Turner G,et al.1997. He-Ar isotopic systematics of fluid inclusions in pyrite from Machangqing copper deposit,Yunnan,China.Science in China (series D),27 (6):503-508 (in Chinese)
[31] 孙晓明,王敏,薛婷等.2003.华南下寒武统黑色岩系铂多金属矿中黄铁矿流体包裹体He-Ar同位素体系及其矿床成因意义.高校地质学报,9(4):661-666
[32] 熊德信,孙晓明,石贵勇,王生伟,高剑锋,薛婷.2006.云南大坪金矿白钨矿微量元素、稀土元素和Sr-Nd同位素组成特征及其意义.岩石学报,22(3):733-741
[33] Hu RZ,Zhong H,Ye ZJ,et al.1998. Helium and argon isotopic geochemistry of Jinding superlarge Pb-Zn deposit.Science in China (series D),41(4):442 -448
[34] Hu YZ,Tang SC,Wang HP,et al.1995. Geology of Gold Deposits in Ailaoshan.Geological Publishing House,Beijing:106-250 (in Chinese with English abstract)
[35] 熊德信,孙晓明,翟伟等.2005.云南大坪金矿含金石英脉中高结晶度石墨包裹体:下地壳麻粒岩相变质流体参与成矿的证据,地质学报(待刊)
[36] Jin SC and Han RS.Geochemistry characteristics of metallogenic hydrothermal system of the reformed deposit:Taking Yuanyang gold deposit as an example.Yunnan Geology,13 (1):17-22 (in Chinese with English abstract)
[37] 薛春纪,陈毓川,王登红等.2003.滇西北金顶和白秧坪矿床:地质和He,Ne,Xe同位素组成及成矿时代.中国科学(D辑),33(4):315-322
[38] 叶先仁,吴茂炳,孙明良.2001.岩矿样品中稀有气体同位素组成的质谱分析.岩矿测试,20(3):174-180
[39] Li DM,Cao ZM,Tang GJ,et al.1998. Gold Deposits in Ailaoshan Ophiolitic M lange Zone.Beijing:Geological Publishing House,52-115 (in Chinese with English abstract)
[40] Li YH,Li JC and Song HB.1999. A comparative study of helium isotope of polymetallic nodules and cobalt crusts.Acta Geoscientia Sinica,20(4):378 -384 (in Chinese with English abstract)
[41] 应汉龙.1998.云南大坪金矿床围岩蚀变和同位素地球化学特征.黄金科学技术,6(4):14-23
[42] Mao JW,Kerrich R and Li HY.2002,High 3 He/4 He ratios in the Wangu gold deposit,Hunan province,China:Implications for mantle fluids along the Tanlu deep fault zone.Geochemical Journal,36:197-208
[43] 曾志刚,秦蕴珊,翟世奎.2000.大西洋中脊TAG热液区硫化物中流体包裹体的He-Ne-Ar同位素组成.中国科学(D辑),30(6):628-633
[44] Mao JW,Li YQ,Goldfarb R,et al.2003. Fluid inclusion and nobel gas studies of the Dongping gold deposit,Hebei province:A mantle connection for mineralization? Economic Geology,98 (3):517 -534
[45] Moreir M,Blusztajn J,Curtice J,et al.2003. He and Ne isotopes in oceanic crust:Implications for noble gas recycling in the mantle.Earth and Planetary Science Letters,216:635 -643
[46] Simmons SF,Sawkins FJ and Schulutter DJ.1987. Mantle-derived helium in two Peruvian hydrothermal ore deposits.Nature,329:429-432
[47] Stuart FM,Burnard P,Taylor R P,et al.1995. Resolving mantle and crustal contributions to ancient hydrothermal fluid:He-Ar isotopes in fluid inclusions from Dae Hwa W-Mo mineralisation,South Korea.Geochimica et Cosmochimica Acta,59:4663 -4673
[48] Sun XM,Norman DI,Sun K,et al.1999. N2-Ar-He systematics and source of ore-forming fluid in Changkeng Au-Ag deposit,Central Guangdong,China.Science in China (series D),42 (5):474 -481
[49] Sun XM,Wang M,Xue T,et al.2004. He-Ar Isotopic Systematics of fluid Inclusions in pyrites from PGE-polymetallic deposits in Lower Cambrian black rock series,South China.Acta Geologica Sinica (English Edition),78(2):471 -475
[50] Sun XM,Xu T,He GW,et al.2005. Noble gases isotopic composition of Cobalt-rich ferromanganese crusts from Western Pacific Ocean and its geological Significances.Acta Geologica Sinica(in press)
[51] Thomas S and Claude JA.1982. Terrestrial xenology,Earth and Planetary Science Letters,60:389-406
[52] Winckler G,Aeschbach-Hertig W,Kipfer R,et al.2001. Constraints on origin and evolution of Red Sea brines from helium and argon isotopes.Earth Planet Sci Let,184:671 -683
[53] Xiong DX,Sun XM,Shi GY,Wang SW,Gao JF and Xue T.2006. Trace elements,rare earth elements (REE) and Nd-Sr isotopic compositions in scheelites and their implications for the mineralization in Daping gold mine in Yunnan province,China.Acta Petrologica Sinica,22 (3):733-741
[54] Xiong DX,Sun XM,Zhai W,et al.2006. Graphite inclusions with high crystallinity in the auriferous quartz veins from Daping gold deposit in Yunnan Province,China:evidence for involvement of metamorphic fluid from granulite-facies lower crust in the mineralization.Acta Geologica Sinica(in press)
[55] Xue C J,Chen YC,Wang DH,et al.2003. The Jinding and Baiyangping deposits,Westnorthern Yunnan:Geological feature,He,Ne and Xe isotope compositions,and metallogenic epoch.Science in China (D),33 (4):315 -322(in Chinese)
[56] Ye XR,Wu MB and Sun ML.2001. Determination of the noble gas isotopic composition in rocks and minerals by mass spectrometry.Rock and Mineral Analysis,20 (3):174-178 (in Chinese with English abstract)
[57] Ying HL.1998. The geochemistry characteristics of wallrock alteration and isotope of Daping gold deposit.Gold Science and Technology.6 (4):14 -23 (in Chinese with English abstract)
[58] Zeng ZG,Qin YS and Zhai SK.2001. He,Ne and Ar isotope compositions of fluid inclusions in hydrothermal sulfides from the TAG hydrothermal field,Mid-Atlantic Ridge.Science in China (series D),44 (3):221 -228
[59] Zhang YX,Liu YM,Gao SD,et al.1990. Earth elements geochemical characteristics of tungstenic minerals:A distinguishing sign for oreforming type.Geochemica,19 (1):11-20 (in Chinese with English abstract)
[60] Zhao KD,Jiang SY,Xiao HQ,et al.2002. Origin of ore-forming fluids of the Dachang Sn-polymetallic ore deposit:Evidence from helium isotopes.Chinese Science Bulletin,47(12):1041 -1045
-
计量
- 文章访问数: 6693
- PDF下载数: 9807
- 施引文献: 0
下载: