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《中国科学D辑(英文版)》 1996-S1
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Decomposition of gravity field and grade separation structure in Qinling-Dabie area

YUAN Weizheng , LIU Shoupeng(Center of Airborne Geophysics and Remote Sensing. Ministry of Geology and Mineral Resources. Beijing 100083. China)and YUAN Xuecheng(Chinese Academy of Geoexploration. Ministry of Geology and Mineral Resources. Beijing 100083. China)  
The regional gravity field and residual gravity anomaly in the Qinling-Dabie area were separated for the first time, which might be produced by the relief of the Moho and the inhomogeneity of crust, separately. The residual anomalies show that there are two Mesozoic subducting magmatic rocks belts. The northern belt includes West Qinling magmatic rock belt and East Qinling magmatic rock belt and extends through Nanyang Basin and dies out to the west of Fuyang. The southern belt coincides with Tongbai-Dabie area. To the west of East Qinling there is also a residual gravity low which might coincide with early Paleozoic depression.
【Fund】: Project supported by the National Natural Science Foundation of China.
【CateGory Index】: P312
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