关于1976年松潘地震成因的讨论  

A DISCUSSION ON THE CAUSE OF THE SONGPAN EARTHQUAKE IN 1976

作　　者：刘武英[1] 李龙海[1] 吴建华[1] 马兰花[1] 

机构地区：[1]国家地震局兰州地震研究所,兰州730000

出　　处：《华北地震科学》1996年第2期16-21,共6页North China Earthquake Sciences

摘　　要：作者在前人研究的基础上,通过对1976年松潘7.2级地震的有关资料的分析,同时与海城地震和唐山地震进行对比,认为松潘地震及伴随该次地震而发生的各类现象是共出一因的,其成因可能与地壳内岩浆上涌有关.作者用岩浆的上涌力、热的发散及气体的逸出,对该次地震的发生、前兆及震后效应等现象作出了解释,最后对有关问题进行了讨论.In this paper, the authors, on the bases of predecessors's studies, by analysing the data concerning the Songpan earthquake and conparing the event with the Haicheng earthquake of 1975 and the Tang-shan earthquake of 1976 , suggest it is possible that the Songpan earthquake and the phenomena accompanied with the event resulted from the same cause, that is , magma intrusion in the crustal depth. The event, precursors and phenomena after the event are interpreted by intrusion force, diffusion of heat and escape of gases in magma. Finally, the authors also discuss some problems concerned.

关 键 词：松潘地震 地震成因 岩浆活动 侵入作用 

分 类 号：P315.1[天文地球—地震学]