Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《JOURNAL OF GLACIOLGY AND GEOCRYOLOGY》 1994-04
Add to Favorite Get Latest Update

Milankovitch Theory is Upset or Verified

Li Peiji(Lanzhou Institute of Glaciology and Geocryology,Chinese Academy of Sciences)  
A continuous 500 kyr climate record from vein calcite in Devils Hole,Ncvada shows that the duration of the last four glacial cycles increased from 80 kyr.to 130 kyr.This variationindicates that major climate changes were aperiodic. Broecker(1992)questioned the validityof the Milankovitch theory.He suggested that althouth the date of the end of the penultimateice age(termination 11)was only 17 kyr.earlier than the previously accepted date of 128 kyr.this change is enough to bring the Milankovitch mechanism into serious deubt. Shackleton (1993) refuted the argument.He commented that the discrepancy arises dat-ing of the Devils Hole calcite vein by measuring the growth of~(230)Th from its parent ~(234)U,be-cause~(230)Th is produced by decay ofdissolved~(234)U in the water. Additionally, the value of 140±3ka was deteimined by interpolation between the closest directly dated subsamples(132 ±3and 150±3ka)。Imbrie(1993)demonstrated that applying the Devils Hole chronology to ocean cores re-quires physically implausible changes in sedimentation rate,therefor transfer it to the marinerecord is inappropriate,And the evidence in favour ofmilankovith theory remains strong. Emiliani(1993)suggested that terminations,transitional episodes which extend throughtime,are poor time markers for the correlation of pleistocene section, The maxima(hypsithermals)and especially the minima(bathytherinals)in the isotope curves are muchsharuer and thus afford a more precise correlation. The astronomical parameters can triggeronly the initiation of an ice age,further development of glaciation and deglaciation is drivenby the internal dynamics of the ice-ocean-atmosphere system.The timing of high sea levels over the past 200 kyr.(Gallup et al.,1994)concluded thatfor the last three interglacial and two intervening interstadial rteriods,sea level peaked at orafter peaks in summer insolation in the Northern Hemisphere. This overall patternsupportsthe idea that glacial-interglacial cycles are caused by changes in Earth's orbital geometry.Crowley suggests that both the Devils Hole and deep-sea chronologies may be correct,with differences between 130 ka and 150 ka years ago reflecting a regionally varying to cli-mate shifts associated with a very extensive glaciation. And extending the vostok ice-core re-cord back to the penultimate glacial period(~140-200 ka ago)yields a new glaciologicaltimescale which is consistent with ocean records.
【CateGory Index】: P461.2
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
【References】
Chinese Journal Full-text Database 2 Hits
1 Yang Xuexiang\ \ Chen Zhen\ \ Liu Suqin\ \ Song Xiuhuan\ \ Chen Dianyou(Changchun University of Earth Sciences, Changchun, 130026);THE DISCOVERY OF FAST ROTATION OF THE EARTH′S INNER CORE AND ORBITAL EFFECT OF GLOBAL CHANGES[J];EARTH SCIENCE FRONTIERS;1997-Z1
2 Yang Xue xiang Professor, Jilin University, Changchun 130026;The Relation Between Asymmetry of Geodynamics System and Global Climate Change[J];Nature Magazine;2001-03
【Co-references】
Chinese Journal Full-text Database 10 Hits
1 LAN Yong-chao 1 ,\ DING Yong-jian\+1,\ KANG Er-si 1 ,\ ZHANG Ji-shi 1 ,\ LIU Gen-sheng 2 (1.Cold and Arid Regions Environmental and Engineering Research Institute, CAS, Lanzhou Gansu 730000,China; 2.Administrative Office of Hydrology and Water Resources of the Upper Reaches of the Yellow River, Lanzhou Gansu 730030, China);Change Trends of the Annual Runoff in the Upper Yellow River and Time Series Markov-Chain Forecast Model[J];Journal of Glaciology and Geocryology;2003-03
2 ZhouShangzhe(Quaternary Glacier & Environment Research Center Center Lanzhou University);Some Problems on the Research of Astronomical Theory of Ice Age[J];JOURNAL OF GLACIOLGY AND GEOCRYOLOGY;1994-01
3 HOU Zhangshuan\ LI Xiaodong (Department of Geophysics,Peking University,Beijing,100871);Signal Detection of Global Climate Change and External Forcing Factors[J];ACTA SCICENTIARUM NATURALUM UNIVERSITIS PEKINESIS;2000-05
4 WANG Zaiwen\ LI Xiaodong (The Geophysics Department of Peking University,100871);The Spatio-Temporal Evolvement of Pacific SSTA[J];Acta Scicentiarum Naturalum Universitis Pekinesis;2002-03
5 LI Xianzhi(Department of Geophysics, Peking University,Beijing,100871);Investgation on the Natural Catastrophe in the Asina-Pacific Regions During the Spring and Early Summer of 1991[J];Acta Scicentiarum Naturalum Universitis Pekinesis;1994-03
6 YANG Xuexiang1,2,CHEN Zhen1,CHEN DianYou1,QIAO Qiyuan2(1.College of Geo-Exploration Science and Technology,Jilin University, Changchun130026,China;2. National Astronomical Observatories, Chinese Academy of Science, Beijing100012,China);THE CORELATION BETWEEN EI NINO EVENTS AND STRONG TIDES[J];Journal of Changchun University of Science and Technology;2003-01
7 LIU Wei~(1,2),YANG Xue-xiang~(3,4) (1.Institute of Mineral Resources Prediction of Synthetic Information,Jilin University,Changchun130026,China;2.Department of Basic Science, Jilin Architectural and Civil Engineering Institute, Changchun130021, China;3. College of Geo-Exploration Science and Technology,Jilin University, Changchun130026,China; 4.National Astronomical Observatories, Chinese Academy of Science, Beijing100012,China);The ice regulators for El Nino events[J];Journal of Jiling University (Earth Science Edition);2004-03
8 Yang Xuexiang;Chen Dianyou(Changchun Univ. of Earth Sciences.Changchun 130026);GRAVITY ISOSTASY AND MASS ISOSTASY[J];;1995-01
9 ZHOU Yong hong, ZHENG Da wei, LIAO Xin hao (Shanghai Astronomical Observatory, CAS, Shanghai 200030,China; National Astronomical Observatories, CAS, Beijing 100012,China; United Center for Astrogeodynamics Research, CAS, Shanghai 200030,China);Length-of-day Variation, Atmosphere Angular Momentum and ENSO: Signatures of 1997~1998 and 1998~1999 ENSO Events[J];Acta Geodaetica Et Cartographic Sinica;2001-04
10 HU Jian guo 1, LI Jian cheng 2,DONG Xiao jun 3, MA Ji rui 4 (1.Chinese Academy of Surveying and Mapping, Beijing 100039,China; 2. Wuhan University,Wuhan 430079,China; 3. Shanghai Astronomical Observatory, Shanghai 200030,China; 4. National Inf;Using Satellite Altimetry Technique for Monitoring the Sea Level Change[J];Acta Geodaetica Et Cartographic Sinica;2001-04
【Secondary References】
Chinese Journal Full-text Database 8 Hits
1 Yang Xuexiang (Changchun University of Science and Technology, Changchun 130026);THE NUMERICAL ESTIMATION OF EARTH EXPANDING[J];CRUSTAL DEFORMATION AND EARTHQUAKE;1999-04
2 Yang Xuexiang, Chen Dianyou,Song Xiuhuan and Wang Chengjin(Changchun University of Science and Technology,Changchun 130026);DISCOVERY OF FAST ROTATION OF THE EARTH′S INNER CORE AND ITS DYNAMIC SIGNIFICANCE[J];CRUSTAL DEFORMATION AND EARTHQUAKE;1998-01
3 LIU Wei 1,CHEN Dian-you 2 (1:Department of Basic Science Jilin Architural and Civil Engineering Institute,Changchun 130021; 2:Jilin University,Changchun 130026);Chain Reaction between Drought and Excessive Rain and Management for Irrigation Works[J];Journal of Jilin Architectural and Civil Engineering Institute;2003-02
4 Ruisheng Zhang, Fengxiang Lu, Jianping Zheng, Linglin Chu Faculty of Earth Sciences, China University of Geosciences , Wuhan , 430074 China;Progress in Study of Interactions Between Interier Layers of the Earth[J];World Geology;2003-03
5 Yang Xue-xiangProfessor,Jilin University, Changchun 130026;On Factors Affecting Climate Changes During Ice Age and Little Ice Age[J];Nature Magazine;2000-06
6 Yang Xue xiang Professor, Jilin University, Changchun 130026;The Relation Between Asymmetry of Geodynamics System and Global Climate Change[J];Nature Magazine;2001-03
7 Yang Xue-xiang National Astronomical Observatories, Chinese Academy of Science, Beijing 100012; Jilin University, Changchun 130026;El Nino in 2001 and It's Astronomical Condition[J];Nature Magazine;2001-06
8 Yang Xue xiang Professor,College of Geo exploration Science and Technology,Jilin University, Changchun 130026; National Astronomical Observatories, Chinese Academy of Science, Beijing 100012;Differential Rotation Between Solid and Fluid of the Earth and Climatic Changes[J];Nature Magazine;2002-02
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved