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首页> 外文期刊>Earth and Planetary Science Letters: A Letter Journal Devoted to the Development in Time of the Earth and Planetary System >Estimation of effective elastic thickness from gravity and topography data under the Deccan Volcanic Province, India
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Estimation of effective elastic thickness from gravity and topography data under the Deccan Volcanic Province, India

机译：根据印度Deccan火山省的重力和地形数据估算有效弹性厚度

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摘要

Effective elastic thickness (EET) under the Deccan Volcanic Province is estimated based on admittance and coherence between the gravity field and the topography. The observed admittance function shows a good fit for the regional compensation model with an EET of 10 +- 2 km. The effect of a long-wavelength (geoidal) gravity anomaly on the computation of EET has been investigated and found not to significantly influence the value of EET although a considerable change in compensation depth was noticed. The estimated EET is less than the thickness of the seismically active layer in this region. These results are consistent with observations in other parts of the world that EET should be smaller than the depth of the 350 +- 100 deg C isotherm.
机译：根据重力场和地形之间的导纳和相干性，估算德干火山省下的有效弹性厚度（EET）。观察到的导纳函数显示EET为10±2 km的区域补偿模型非常合适。已经研究了长波（重力）重力异常对EET计算的影响，尽管发现补偿深度有很大变化，但对EET的值没有显着影响。估计的EET小于该区域中地震活动层的厚度。这些结果与世界其他地区的观察结果一致，即EET应该小于350±100℃等温线的深度。

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