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首页 > 地质科技情报 > 1990年03期

豫西东秦岭造山带核部杂岩变质作用研究若干进展

          
文章关键词: 造山带 杂岩 变质作用
文章快照: 题负责项礼文教授曲关一,井俘盏于张目伟、安三元教授、刈目鑫研究员、张寿广翻研兜是的支持和指导,野外工作得到河亩地矿斤四调艮曲热情帮助。笔者于此恃表裹曲谢忱.参考文献[1】索书田,豫西秦崎群构造研究新进展,《地质科技情报,,1986年,第5春,第4期,第32页(2]Berry,R.F.andMedougalI,I..Interpretationof‘*Ar/0’ArandK/ArdatingevidencefromtheAilonformationEastTimorIndonesia.Chim.Gent..1986.VoI.59.PP.48~58.C8]Spear,F.S.eta1.,一pathsfromgarnetzoning:Anew*techniquefordecipheringtectonicprocesses,Geology.1984.Vo1.12.PP.87~90(4]阵鳇橙,障压变质组音和降压变质反韭厦其封别,‘地质科技情报’,1989年.第9卷,第4期.第2t~29页(5]HarleyS.L.,OriginsofgranuIites:ametamorphicperspective.Gent.Mag.1989,Vo1.t26,PP.215~247[6】陈拍橙,豫西蛇尾秦岭群变质作用一T轨迹的定量计算爰其地质意义,《地球科学》,1990年.簟l5眷.第2期,第265~276页[7]ThompsonA.B.andEngland,P.C.,Pressure—Temperature—timepathsofregionalmetamor—phismIItheiri.ferenceandinterpretationusingmineralassemblagesinmetamorpkicrocks,,.Petro1.,1984.VoI.25.PP.828~955S0MESIGNIFICANTPR0GRESSESINMETAM0RPHISMRESEARCH0NTHEC0REC0MPLEX0FEASTERNQINLINGOROGENICBELT,WESTERNHENANChenNengsongYouZhendongHanYuqing(ChinaUniversityo,Geosciences,Wuhan)AbstrantSomesignificantprogresseshavebeenmadeinmetamorphismresearchonthecorecomplexofeasterhQinlingorogenicbelt,westernH~nan.Inthisresearch,themetamorphicevolutionisdistinguishedasJinningandCaledonian-Hercyniantwocyc—leaaccordingtoisotopicdatingandthemineralgrowthisdividedintotwoperiodsandsixstages.Inaddiiton,anumberofdecompressionandisobariccoolingrca一~tionsarefound.andthemetamorphicP—T—oathsarequantitativelyreconstrn—ctedforthetWOcycles.Theseresultslendthenewevidencefortheevolutionofthecorecomplexandthewholeorogenicbeltcrust.24