闫臻,王宗起,阎全人,王涛

• 1:中国科学院地质与地球物理研究所
• 2:中国地质科学院地质研究所
• 3:中国地质科学院地质研究所
• 4:中国地质科学院地质研究所 北京100029中国地质科学院地质研究所

摘要(Abstract)：

俯冲—增生型造山带弧前增生楔流体的特点为 :盐度低、氯化物含量异常低 ,并含有丰富的 CO2 和 CH4。流体以扩散式或沿断层带渠道式活动 ;泥火山、张裂隙充填脉、碳酸盐壳、深海生物群是流体活动的直接体现 ;流体活动影响着增生楔的内部结构和构造样式 ;增生楔中流体活动特征的研究对研究造山带的地质演化及矿床成因具有重要意义

关键词(KeyWords)： 俯冲—增生型造山带;弧前增生楔;流体活动

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目 (4 9972 0 74;40 172 0 71) ;; 中国地质调查局项目 (DKD2 0 0 10 0 2 )

作者(Author): 闫臻,王宗起,阎全人,王涛

Email:

DOI:

参考文献(References)：

• [1]　DeweyJF,BirdP.Mountain belts and the new global tectonics[J].J.Geophys.Res.,1970,75:2625-2647.
• [2]　IsozakiY,Maruyam aS,FuruokaF.Accreted oceanic m aterialsinJapan[J].Tectonophysics,1990,181:179-205.
• [3]Maruyam aS.Pacific-type orogeny revisited:Miyashiro-typeorogeny proposed[J].TheIslandArc,1997,6:91-120.
• [4]　MitchellA H G,CarlileJC.Arc-related gold-copper mineral-ization,basement domes and crustal extention[J].Journal ofSoutheastAsianEarthScience,1994,10:39-50.
• [5]　WhiteN C,L eakeM J,McCaugheyS N,et al.Epithermal golddeposits of the southwestPacific[J].Journal ofGeochemicalExploration,1995,54:87-136.
• [6]　GoldfarbR J,L eachD L,PickthornW J,et al.Origin of lode-gold deposits of theJureau gold belt,southeasternAlaska[J].Geology,1988,16:440-443.
• [7]　HaeusslerP J,BradleyD,GoldfarbR,etal.L ink between ridgesubduction and gold mineralization in southernAlaska[J].Ge-ology,1995,23:995-998.
• [8]MooreJC,SilverE A.Continental margin tectonics:Submarineaccretionary prism s[J].Rev.Geophys.,1987,25:1305-1312.
• [9] vonHueneR,SchollD W.Observations at convergent marginsconcering sediment subduction,subduction erosion and growthof continental crust[J].Rev.Geophys.,1991,29:279-316.
• [10]MooreJC,DiedoldJ,FisherM A,et al.EDGE deep seisemicreflection transect of the easternAleutian arc-trench layeredlower reveals underplating and continental growth[J].Geolo-gy,1991,19:420-424.
• [11]KastnerM,ElderfieldH,MartinJ B.Fluids in convergentmargin:What do we know about their composition,origin,rolein diagenesis and importance for oceanic chemical fluxes?[A].In:TarneyJ,PicketingK T,KnipeR J,et al:TheBehaviourandInfluence ofF luids inSubductionZones[M].L ondon:Phil.Trans.R.Soc.1991.17-33.
• [12]PeacockS M.Num ercial simulation of metamorphic pressure-tim e paths and fluid production in subduction slabs[J].Tec-tonics,1990,9:1197-1211.
• [13]BekinsB A,McCaffreyA M,DreissJS.Episodic and constantflow models for the origin of low-chloride waters in a modernaccretionary complex[J].WaterResourcesResearch,1995,31:3205-3215.
• [14]DiaA D,CastrecM,BoulegueJ.Major,trace-element andSrisotope constrains on the fluid circulation in the accretionarycomplex ofBarbadosPartI:Fluid origin[J].EarthPlanet.Sci.L ett.,1995,134:69-85.
• [15]MooreJC,VrolijkP.F luids in accretionary prism[J].Rev.Geophys.,1992,30(2):113-135.
• [16] lePichonX,KobayashiK.Fluid venting activity within theeasternNankaiTrough accretionary wedge:A summary of the1989Kaiko-Nankai results[J].EarthPlanet.Sci.L ett.,1992,109:303-318.
• [17]WesterbrookG K.Geophysical evidence for the role of fluid inaccretionary wedge tectonics[J].Philos.Trans.R.Soc.Lon-don,Ser.A,1991,335:227-242.
• [18]KimuraG.Cretaceous episodic growth of theJapanese islands[J].TheIslandArc,1997,6:52-68.
• [19]ZhaoZ,MooreG F.Deformation and dewatering of subduct-ing plate beneath the lower slope of the northernBarbados ac-cretionary prism[J].J.Geophys.Res.,1998,103:30431-30449.
• [20]KulmL D,SuessE.The relation of carbonate deposits to fluidventing processes:Oregon accretionary prism[J].J.Geophys.Res.,1990,95:8899-8915.
• [21]HovlandM,TalbotM R,QvaleH,et al.Methane relatedcarbonate cements in pockmarks of theNorthSea[J].JournalofSedimentaryPetrology,1987,57:881-892.
• [22]KulmL D,SuessE,MooreJC,et al.Oregon subduction zone:Venting,fauna,and carbonates[J].Science,1986,231(4738):561-566.
• [23]SainoT,OhtaS.13C/12C and15　N/14N ratios of vesicomyidcalms and a vestimentiferan tube worm in the subduction zoneeast ofJapan[J].Palaeogeogr.PalaeoclimatologyPaleaoecolo-gy,1989,71:169-178.
• [24]HovlandM.Do carbonate reefs form due to fluid seepage[J].TerraN ova,1990,(2):8-18.
• [25]VrolijkP,SheppardS M F.Syntectonic carbonate veins fromtheBabados accretionary prism(ODP L eg110)——Record ofpaleohydrology[J].Sedimentology,1991,38:671-690.
• [26] lePichonX,HenryP,L allemantS.Accretion and erosion insubduction zones:The role of fluids[J].Ann.Rev.EarthPlanet.Sci.,1993,21:307-331.
• [27]YouC F,ChanL H,SpivackA J,et al.L ithium,boron,andtheir isotopes in sediments and pore waters ofOceanDrillingProgramSite808,NankaiTrough:Implications for fluid ex-pulsion