ON 3D INVERSION FOR CRUSTAL DENSITY CHANGE BEFORE AND AFTER LIJIANG Ms7.0 EARTHQUAKE
丽江7.0级地震前后地壳密度动态变化三维反演

The repeated gravity data of western Yunnan in 6 terms from 1994 to 1996 were used to calculate the dynamic change of gravitational differentiation by means of adjustment.The density change images of underground materials were obtained with 3D inversion combining the model of body growing and genetic algorithm.The results show that the regional density change images basically reflect the dynamic evolution process of medium density before and after the Lijiang Ms 7.0 earthquake in the south central region of...