【摘要】 本文对1976年11月7日四川省盐源6.7级地震前后,盐源—西昌—昭觉(东西向)和冕宁—西昌—德昌(南北向)两条流动重力复测剖面的资料进行分析得出:沿重力梯度带的南北向剖面的变化不大,而横切重力梯级带的东西向剖面出现较大异常,且在1976年8—9月变化最为剧烈。并对这些变化特征作了初步探讨。更多还原

【Abstract】 According to the data of repeated measurements of the Yanyuan-Xichang-Zhaojue (E-W)and Mianning-Xichang-Dechang (S-N) gravity profiles before and after the Yanyuan earthquake (6.8, 1976.11.7) in Sichuan Province, we obtain conclusion which there was not much change in S-N profile along gradient zone of gravity and there was larger anomaly in E-W profile across gradient zone of gravity. The last change was much large during the period from August to September, 1976. And the characteristics of these changes is discussed preliminary.更多还原