泰安—忻州剖面S波分裂计算及介质各向异性与深部构造相关性探讨  

S-WAVE SPLITTING CALCULATION AND DISCUSSION ABOUT THE CORRELATIVITY BETWEEN MEDIUM ANISOTROPY AND DEEP STRUCTURE FROM THE TAI'AN-XINZHOU DSS PROFILE

作　　者：刘志[1] 张先康[1] 嘉世旭[1] 郑需要[1] 段永红[1] 赖晓玲[1] 邓宏钊[1] 

机构地区：[1]中国地震局地球物理勘探中心,河南郑州450002

出　　处：《地球物理学进展》2000年第3期61-69,共9页Progress in Geophysics

基　　金：国家自然科学基金项目!(497742 30 )

摘　　要：利用深地震测深资料进行S波震相的有效识别和S波分裂参数计算方法 ,对泰安—忻州剖面S波资料的计算分析 ,得到了该区域地壳介质各向异性、区域应力场方向异常的可靠证据 .与震源机制解及深部的构造结果对比分析表明了S波传播和S波偏振异常的超壳断裂带和深部构造活动密切相关 ,表明测深资料S波分裂研究了对了解介质各向异性构造活动特征 。By effective identification of S wave phase with DSS data and with the caclulation method of S wave splitting parameters, S wave data from Tai'an Xinzhou profile were calculated and analyzed. As a result, reliable evicence was obtained with respect to crustal medium anisotropy and anomaly of regional stress field orirentation in the region. Analytical comparation with focal mechanism soulution and results of deep structure shows that S wave polarization anomaly is closely related to ultra crustal faults and deep tectoic activities. This indicates that the study of S wave splitting with DSS data is of great importance the understanding of medium anisotropy and crustal dynamic characteristics.

关 键 词：人工地震测深 S波分裂 各向异性 深部构造 剖面 

分 类 号：P631.4[天文地球—地质矿产勘探]