| 甘川陕宁青部份地区的地壳结构 |
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| 引用本文： | 董奇珍.甘川陕宁青部份地区的地壳结构[J].西北地震学报,1988,10(1):66-74. |
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| 作者姓名： | 董奇珍 |
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| 作者单位： | 国家地震局兰州地震研究所 |
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| 摘 要： | 本文利用七次人工爆破资料分别计算了甘肃东南部、四川北部、陕西南部、宁夏南部、青海东北部和甘、川、陕接壤地区的地壳平均厚度、地壳表层的平均厚度以及各种地震波的速度。结果表明:甘、川、陕接壤地区的地壳厚度很接近,地壳厚度从西北向东南递减。
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| 收稿时间： | 1987/6/11 0:00:00 |
THE CRUSTAL STRUCTURE ON A PART AREA OF GANSU SICHUAN, SHAANXI, NINGXIA AND QINGHAI RPOVINCES |
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| Dong Qizhen.THE CRUSTAL STRUCTURE ON A PART AREA OF GANSU SICHUAN, SHAANXI, NINGXIA AND QINGHAI RPOVINCES[J].Northwestern Seismological Journal,1988,10(1):66-74. |
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| Authors: | Dong Qizhen |
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| Institution: | Seismological Institute of Lanzhou, State Seismological Bureau |
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| Abstract: | Applying the data of 7 artificial explosions we calculate the average crustal thickness and the average thinckness of the upper layer, and various seismic velicities in the area of southeast of Gansu, the north of Sichuan, the south of Shaanxi, the south of Ningxia and the northeast of Qinghai and the contiguous areas of Gansu, Sichuan, Shaanxi respectively. It is suggested that thickness on contiguous areas of Gansu, Sichuan and Shaanxi is quite close and the crustal thickness decreases from northwest to southeast gradually. |
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