| 南海壳体不同深度构造应力研究 |
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| 引用本文： | 詹文欢. 南海壳体不同深度构造应力研究[J]. 大地构造与成矿学, 1998, 22(2): 97-102 |
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| 作者姓名： | 詹文欢 |
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| 作者单位： | 中国科学院南海海洋研究所 |
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| 摘 要： | 根据三维有限元方法，计算了南海壳体不同深度构造应力的数值分布，每个层面的应力值分别为：130km深处的偏应力值变化范围为-5．1～3．25MPa；80km深处为-5～2．9MPa；30km深处为-5．5～2．15MPa；10km深处为-3．6～0．67MPa；地壳表层的数值明显变化较大，从-2．5MPa变至0．11MPa。并初步探讨了构造应力与壳体运动的关系。
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| 关 键 词： | 构造应力 壳体 南海 |
A PRELIMINARY ANALYSIS OF TECTONIC STRESS AT VARIOUS DEPTHS IN THE SOUTH CHINA SEA CRUSTOBODY |
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| Abstract: | Tectonic stress at various depths has been computed by means of the finite element method in the South China Sea crustobody. The conclusion is that the distribution of the stress is: -5. 1~3. 25 MPa (130 km), - 5~2. 9 MPa (80 km), -5. 5~2. 15 MPa (30km), -3. 6~0. 67 MPa (10 km), and - 2. 5 MPa~0. 11 MPa in the surface of crust. The coaction between tectonic stress and crustobody movement in the South China Sea is preliminarily discussed. |
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| Keywords: | Crustobody tectonic stress South China Sea |
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