THE THIRD KURAYOSI EXPLOSION AND THE CRUSTAL STRUCTURE IN THE WESTERN PART OF JAPAN
THE THIRD KURAYOSI EXPLOSION AND THE CRUSTAL STRUCTURE IN THE WESTERN PART OF JAPAN
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第三次仓吉爆炸与日本西部地壳结构
DOI：
10.4294/jpe1952.22.109
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发表时间：
1974
期刊：
影响因子：
--
通讯作者：
T. Moriya
中科院分区：
文献类型：
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作者：
T. Yoshii;Yoshimi Sasaki;T. Tada;H. Okada;S. Asano;I. Muramatu;M. Hashizume;T. Moriya
1970年11月21日，爆炸地震学研究小组发射了第三次仓吉爆炸，目的是探测从地壳深处边界反射的地震波。地震勘探仪器（E.T.L.记录仪）记录了来自康拉德不连续面的非常清晰的反射波。在距离约 100 公里的拍摄距离配备 FM 数据记录仪的近距离临时观测点获得的记录中，也有微弱的迹象表明莫霍罗维奇不连续性的反射。根据这些结果，对先前的模型进行了修订。获得的地壳厚度约为35公里，Pn速度约为7.8公里/秒。
The third Kurayosi explosion was fired by the Research Group for Explosion Seismology on November 21, 1970 in order to detect the seismic waves reflected from deep crustal boundaries. Very clear reflected waves from the Conrad discontinuity were recorded by the instrument for seismic prospecting (E.T.L. recorder). There was also weak indication of the reflection from the Mohorovicic discontinuity in the records obtained at closely spaced temporary observation points equipped with FM data recorders at the shot distance of about 100km. On the basis of these results, a revision was made for the previous model. The crustal thickness obtained is about 35km and the Pn velocity, about 7.8km/sec.