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《JOURNAL OF CHANGCHUN UNIVERSITY OF SCIENCE AND TECHNOLOGY》 1995-01
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GRAVITY ISOSTASY AND MASS ISOSTASY

Yang Xuexiang;Chen Dianyou(Changchun Univ. of Earth Sciences.Changchun 130026)  
Isostasy theory is playing more and more important roles in the rpsearchof geodesy and sea level changes,But the traditional isostasy models can no longer satisfythe needs of precision in recent practice. Both Pratt′s and Airy′s models are based on aplane crust and the vertical variation of gravity is not taking into account.So thesemodels are in fact the isostasies of mass. If we consider the isostasv models based on aspherical crust and take into account the vertical variation of gravity,the isostasy modelsthen become isostasy of gravity.Numerical estimations show that the differences betweenthe isostasy models of mass and gravity are not negligable,These differences would playimportant roles in the research Of stress state in the crust.
【CateGory Index】： P312.3
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【Co-citations】
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1 Yang Xuexiang Chen Zhen(Department of Basic Science);SPHERICAL LAMELLA FORMULAS OF TOPOGRAPHIC CORRECTION IN SQUARE MODEL AND THEIR APPLICATION[J];;1992-04
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【Secondary References】
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1 Yang Xuexiang,Zhang Zhongxin,Chen Dianyou,Chen Zhen and Song Xiuhuan (Changchun University of Earth Sciences,Changchun\ 130026) Xie Hong (Ji'an University of Education, Ji'an city of Jiangxi province\ 343000);ENERGY ACCUMULATION AND LIBERATION IN EARTH'S CORE[J];CRUSTAL DEFORMATION AND EARTHQUAKE;1996-04
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