| 海洋岩石圈板块有效弹性厚度研究 |
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| 引用本文： | 苏达权.海洋岩石圈板块有效弹性厚度研究[J].地球物理学报,2012,55(10):3259-3265. |
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| 作者姓名： | 苏达权 |
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| 作者单位： | 中国科学院南海海洋研究所, 广州 510301 |
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| 基金项目： | 国家自然科学基金重点项目 |
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| 摘 要： | 本文在前人研究大陆岩石圈板块有效弹性厚度的基础上,建立研究海洋岩石圈板块有效弹性厚度的理论模型,推导出与大陆岩石圈不同的海洋岩石圈板块响应函数 Z(k,Te) 理论计算公式.并分析海洋岩石圈板块响应函数 Z(k,Te) 的特点.文中对实际的海洋测量数据的响应函数 Z(k,Te) 进行计算和分析,估算我国南海南沙海域和南海中央海盆岩石圈板块有效弹性厚度分别约为10 km和6~7 km.
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| 关 键 词： | 响应函数 Z(k Te) 海洋岩石圈板块有效弹性厚度 海底地形 自由空间重力异常 |
| 收稿时间： | 2011-10-12 |
A study of the effective elastic thickness of the oceanic lithosphere |
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| SU Da-Quan.A study of the effective elastic thickness of the oceanic lithosphere[J].Chinese Journal of Geophysics,2012,55(10):3259-3265. |
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| Authors: | SU Da-Quan |
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| Institution: | South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China |
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| Abstract: | Based on the previous studies on the effective elastic thickness of the continental lithosphere, the model of oceanic lithosphere was set up for study of the effective elastic thickness of the lithosphere, and the theoretic formula of isostatic response function (admittance) Z(k,Te) for the oceanic lithosphere was derived. It differs from that of the continental lithosphere. The characters of isostatic response function Z(k,Te) in ocean were explained. The isostatic response function (admittance) Z(k,Te) derived from field data in Nansha was also calculated and the estimation of the effective elastic thickness of the oceanic lithosphere in Nansha sea area is 10 km,and in the Central Basin of South China Sea is 6~7 km. |
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| Keywords: | Isostatic response function(Admittance) Z(k Te) The effective elastic thickness of the oceanic lithosphere Topography of sea floor Free-air gravity anomaly |
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