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《应用地球物理(英文版)》 2011-04
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Selecting the optimum location of the corner using gravity gradient method

Sun Peng-Fei 1 , Wu Yan-Gang 1 , Yang Chun-Cheng 3 , Han Zhao-Hong 1,2 , and Fan Mei-Ning 1 1. College of Geo-Exploration Science and Technology, Jilin University, Changchun 130026, China. 2. Jilin Teacher’s Institute of Engineering and Technology, Changchun 130026, China. 3. Geophysical Exploration Institute of Heilongjiang province, Heilongjiang 150036, China.  
The conventional gravity gradient method to plot the geologic body location is fuzzy. When the depth is large and the geologic body is small, the Vzz and Vzx derivative errors are also large. We describe that using the status distinguishing factor to optimally determine the corner location is more accurate than the conventional higher-order derivative method. Thus, a better small geologic body and fault resolution is obtained by using the gravity gradient method and trial theoretical model calculation. The actual data is better processed, providing a better basis for prospecting and determination of subsurface geologic structure.
【Fund】: support by the "Eleventh Five-Year" National Science and Technology Support Program (No. 2006BAB01A02);; the Pivot Program of the National Natural Science Fund (No. 40930314)
【CateGory Index】: P223
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