| THE BOUGUER ANOMALIES AND DEPTHS OF MOHOROVICIC DISCONTINUITY IN THE SOUTH CHINA SEA REGION |
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| 作者姓名： | 刘祖惠 王启玲 袁恒涌 苏达权 |
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| 作者单位： | South China Sea Institute of Oceanology，Academia Sinica，Guangzhou，South China Sea Institute of Oceanology，Academia Sinica，Guangzhou，South China Sea Institute of Oceanology，Academia Sinica，Guangzhou，South China Sea Institute of Oceanology，Academia Sinica，Guangzhou |
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| 摘 要： | The South China Sea is situated at the continsntal margin of South China. In this region, there are both continental and oceanic crusts. The values of Bouguer gravity anomalies on the continental shelf are low positive or low negative. Because the depth of the Mohorovicic discontinuity in this region is about 26-32 km below sea level, the crust belongs to the continental type. The values of Bouguer gravity anomalies in the deep-sea region are more than 250 mgal and the depth of the Moho-surface is about 10-15 km below sea level, so the crust is of oceanic type. The values of gravity anomalies and depths of the Moho-surface, obtained over the continental (and island) slope, range between those regions mentioned above, so the crust belongs to the transitional type. The continental crust is inferred to be directly in contact with the oceanic crust as a result of a lithospheric fault.
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| 收稿时间： | 1984/1/15 0:00:00 |
| 修稿时间： | 1985/11/20 0:00:00 |
THE BOUGUER ANOMALIES AND DEPTHS OF MOHOROVICIC DISCONTINUITY IN THE SOUTH CHINA SEA REGION |
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| LIU ZUHUI,WANG QILING,YUAN HENGYONG and Su DAQUAN.THE BOUGUER ANOMALIES AND DEPTHS OF MOHOROVICIC DISCONTINUITY IN THE SOUTH CHINA SEA REGION[J].Acta Oceanologica Sinica,1985,4(4):579-590. |
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| Authors: | LIU ZUHUI WANG QILING YUAN HENGYONG and Su DAQUAN |
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| Institution: | South China Sea Institute of Oceanology, Academia Sinica, Guangzhou |
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| Abstract: | The South China Sea is situated at the continsntal margin of South China.In this region,there are both continental and oceanic crusts.The values of Bouguer gravity anomalies on the continental shelf are low positive or low negative.Because the depth of the Mohorovicic discontinuity in this region is about 26-32 km below sea level,the crust belongs to the continental type.The values of Bouguer gravity anomalies in the deep-sea region are more than 250 mgal and the depth of the Moho-surface is about 10-15 km below sea level,so the crust is of oceanic type.The values of gravity anomalies and depths of the Moho-surface,obtained over the continental(and island) slope,range between those regions mentioned above,so the crust belongs to the transitional type.The continental crust is inferred to be directly in contact with the oceanic crust as a result of a lithospheric fault. |
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