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《Journal of Jiling University (Earth Science Edition)》 2005-S1
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The Gravity Anomalies Forward Fitting and Geological Explanation for the 40° North Latitude Section in China

WU Yan-gang,JIAO Xin-hua,ZENG Zhao-fa,MA Shu-yan(College GeoExploration Science and Technology,Jilin University, Changchun 130026,China)  
We cut out a long section along the forty degrees north latitude section in china.We make a calculation and initial explain in geological combining the new geotectology tectonic divide for Bourger gravity anomalies and satellite gravity anomalies.The conclusion show that: the density horizontal change small inside the stable region of the old continental nucleus,original platform,platform,and massif but the density horizontal change big inside the movable region of young fold band.Bourger gravity anomalies reflect not clear and satellite gravity anomalies correspondence better for every crust reduce butt band of tectonic boundary.In different region,the crust's density distribution has more difference with the upper mantle's showing by the result calculation of the Bourger gravity anomalies and satellite gravity anomalies.These important conclusions can help to explore the generality and difference in mechanisms and applications between Bourger gravity anomalies and satellite gravity anomalies,so that can achieve the goal of further understand two gravity anomalies essence.
【CateGory Index】: P631.1;
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