Formation Environment of the High-Pressure Metamorphic Rocks, Western Tianshan, Xinjiang, China   总被引：1，自引：0，他引：1  

GAO Jun  WANG Zongxiu 《Continental Dynamics》1997,(1)

1.IntroductionFromexperimefltalphaseequilibrium,stableisotOPe,andthermo-barometricstudies,ProgradebineschistdineralparageneseshavebeenproducedexclusivelyatrelativelyhighPadratios(DeRoever,1956;Miyashiro,1961;DobretsovandSobolev,1984;Emst,1973,1988;Maruyamaetal.,1996).InthelastthreedeCades,withtheadvanceofplatetectonics,manygeologistssuggestedthatblueschists,representinghigh-Pressurelow-tCmperamre~rphism,areformedbysubductionofoceanicplate(Emst,1973).Blueschistshavealsobeenregardedasoneof…  相似文献   

Study on the Gravity Field and Deep-Seated Crustal Structure at the North Margin of the Qinghai-Tibet Plateau   总被引：1，自引：0，他引：1  

MENG Lingshun 《Continental Dynamics》1997,(1)

1.I~ductionThenorthernmarginoftheQinghai-TibetplateauincludestheAltllnMis.,theQilianMis.,KunlunMis.,theQaidambasinandthesouthernTarimbasin.ThisareaistCctonicallycharacterizedbyintensiveCenozoicdeformationwithcomplicateddeformationalmechedsm(Molnaretal.,1987;Zheng,1991;Culetal.,1994;Ding,1995andXuetal.,1996).Thedeformationalmechanismsincludethrust-napping,strike-slipping,extensionandblockrotation,aswellassimultaneousupliftingandtypicalbasin-rangetectonics(CulandXu,1996).IntermsofCenozoi…  相似文献   

Crust-Mantle Electrical Structure in the Area along the Yadong-Burn Co Profile     

WEI Wenbo  CHEN Leshou  TAN Handong  DENG Ming 《Continental Dynamics》1997,(1)

1.IntroductionUntilnowTibetisstillthearchetypalregionwithcontinentalcollisiongoingoninit,henceitisanidealnaturallaboratoryforstudyingthegeologicevolutionofintracontinentalorogenicbeltandthecrust-mantledeepprocesses,aswellastheinteractionbetweenthemandthesupracrustalmovements.Forthisreason,forseveraldecadesgeologistsandgeophysicistsfromvariouscountrieshavemadeunremittingeffortsinthisregiontoprobeintotheoriginandprocessoftheplateauformation,withavarietyofcognitionsproposed.TheCMPresultsoftheSi…  相似文献   

A Study on Sequence Stratigraphy of Mesoproterozoic and Neoproterozoic in Southern North China Platform     

Zhou Hongrui Wang Ziqiang Cui Xinsheng Lei Zhenyu Dong Wenming 《中国地质大学学报(英文版)》1996,(1)

INTRODUCTIONThestrataofMesoprotCrozoicandNeoproterozoicaredevelopedcompletelyinthesouthpartoftheNorthetnaplatformandconsistofthreesystems,inasCendingorder,Jixiaulan,QingbaikouanandSlman.BasedonadetailedinvestigationontheolltcropandthecomprehenSiveanalysis,wediscussthecharaCterofsequencestratigraphyandthecorrelationoftheMemo--Neoproterozoicinthearea.FnThRrsor~unCrsANDPARA~unCrsMeSO--NooprotffezoicRadonalfortigraphyThesouthernpartofNorthChinaplatformherereferstotheareasincluding…  相似文献   

Early Ordovician Sea Level Changes in South China and Their Worldwide Correlation     

Wang Xiaofeng 《中国地质大学学报(英文版)》1996,(1)

INTRODUCTIONTheoaf~ansed~arewidelydistributedinSouthetna,fromtheYanalCratondPborminnorthtocontinentalmarginofsoutheastern~insouth.ThePreSentpaperdiscussesmainlytheEarlyOrdovidan(thehoeofHirmtodontussimplex~tothebaseofNemopagngraciliszone,Wangatal.,1992)sealeVelchangeSandtheirworldwidecorrelationbasedonasyntheticalstudyofseqUenCe,bioshatiglaphyandaretratigl'aphy.Thisapproachwillfillinthe~instudyoftheOrdovidanofChina,andimprovethesu~ionandCO~ionofbio--,litho--andcbronostheigraphy.Mea…  相似文献   

New　Evidence　for　Eastward　Extension　of　Late　Hercynian－Early　Indosinian　Qinling　Sea     

Du Yuansheng  Feng Qinglai  Yin Hongfu 《中国地质大学学报(英文版)》1996,(2)

ＮｅｗＥｖｉｄｅｎｃｅｆｏｒＥａｓｔｗａｒｄＥｘｔｅｎｓｉｏｎｏｆＬａｔｅＨｅｒｃｙｎｉａｎ－ＥａｒｌｙＩｎｄｏｓｉｎｉａｎＱｉｎｌｉｎｇＳｅａＤｕＹｕａｎｓｈｅｎｇ；ＦｅｎｇＱｉｎｇｌａｉ；ＹｉｎＨｏｎｇｆｕ（ＦａｃｕｌｔｙｏｆＥａｒｔｈＳｃｉｅｎ...  相似文献   

Geochemical　Features　of　Ophiolite　in　Mianxian　Lueyang　Suture　Zone，Qinling　Orogenic　Belt   总被引：10，自引：0，他引：10  

Lai Shaocong  Zhang Guowei 《中国地质大学学报(英文版)》1996,(2)

ＧｅｏｃｈｅｍｉｃａｌＦｅａｔｕｒｅｓｏｆＯｐｈｉｏｌｉｔｅｉｎＭｉａｎｘｉａｎＬｕｅｙａｎｇＳｕｔｕｒｅＺｏｎｅ，ＱｉｎｌｉｎｇＯｒｏｇｅｎｉｃＢｅｌｔＬａｉＳｈａｏｃｏｎｇ；ＺｈａｎｇＧｕｏｗｅｉ（ＤｅｐａｒｔｍｅｎｔｏｆＧｅｏｌｏｇｙ，Ｎｏｒｔ...  相似文献   

A　New　Kind　of　Structural　Model：Constrained　Lateral　Extrusion　in　Western　Ordos　Basin　and　Its　Adjacent　Regions     

Liu Shaofeng 《中国地质大学学报(英文版)》1996,(2)

ＡＮｅｗＫｉｎｄｏｆＳｔｒｕｃｔｕｒａｌＭｏｄｅｌ：ＣｏｎｓｔｒａｉｎｅｄＬａｔｅｒａｌＥｘｔｒｕｓｉｏｎｉｎＷｅｓｔｅｒｎＯｒｄｏｓＢａｓｉｎａｎｄＩｔｓＡｄｊａｃｅｎｔＲｅｇｉｏｎｓＬｉｕＳｈａｏｆｅｎｇ（ＤｅｐａｒｔｍｅｎｔｏｆＧｅｏｌｏｇｙ，...  相似文献   

SEDIMENT TRANSPORT MODEL OF A WATERSHED     

LI Huaien 《国际泥沙研究》1997,(1)

ChinaisoneOfthecountrieswhichsufferfromthemostserioussoilerosionintheworld,andthehillyandgullyareasof~PlateauinthemiddlereachesOftheYellowRiverarethemostseriouserosionareainChina.Inthisarea,themainerosivefactorsarerainfallandrunoff.Sometimes,thesedimentyieldinasinglefloodeventcanbe40%oftheannualsedimentload.Therefore,itisveryimPOrtanttostudytheyieldandgraphOfSedimentOfsinglefindevent.Forthispn~,thispaperiswritten.AInongsedimentmodelsforsinglefloodevent,moreandmoreattentionwaspaidtOunitse…  相似文献   

ADVANCES IN MEASURING TECHNIQUES OF BED LOAD     

ZHOU Gangyan ZOU Jiazhong 《国际泥沙研究》1997,(1)

I.m~UCrIONBedloadisthesedimentwhichmovesalongtheriverbedintheformofrolling,slidingandsaltation.BedloadmaycreatemanyproblemsintheoperationandmaintenanceofnavigationchannelandinthedevelOPmentofhydroelectricity.Dataofbedloaddischargearealsorequiredinthedesignofreservoir,inwhichtheinflowbedloadareallactuallytrapped.Thewaysofbedloadmotionaredifferentfordifferentsizes.Thus,itisextremelydifficulttodeterminethebedloaddischargeaccurately.Manyequationshavebeenproposedtocalculatethebedloaddischarge.H…  相似文献