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首页> 外文期刊>Pure and Applied Geophysics >Structure of the Padul-Nigüelas Basin (S Spain) from H/V Ratios of Ambient Noise: Application of the Method to Study Peat and Coarse Sediments
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Structure of the Padul-Nigüelas Basin (S Spain) from H/V Ratios of Ambient Noise: Application of the Method to Study Peat and Coarse Sediments

机译：从环境噪声的高/低比看帕杜尔-尼古拉斯盆地（西班牙）的结构：该方法在研究泥炭和粗泥沙中的应用

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摘要

This paper presents the results of the application of a technique of geophysical surveying based on resonance frequency of materials, in a small basin within the Internal Zones of the Betic Cordillera (southern Spain). The frequencies determined have enabled the main features of the basin's structure to be delineated, clearly identifying its asymmetry due to variations in the position of the rigid basement in different sectors. The results show that this method does not guarantee a perfect identification of coarse sediments, unless these overlie substantial more rigid materials. On the other hand, the same method was very effective for studying very soft sediments (peat), and it was possible to establish a quantitative relationship for determining the thickness of these sediments based on their resonance frequency. This relationship was then used to map peat thickness in the basin. The results have been compared with gravity studies and mechanical drillings undertaken in the region.
机译：本文介绍了基于物质共振频率的地球物理勘测技术在Betic Cordillera（西班牙南部）内部区域内的一个小盆地中的应用结果。所确定的频率能够描绘出盆地结构的主要特征，从而清楚地识别出由于不同部分中刚性基底位置的变化而引起的不对称性。结果表明，该方法不能保证对粗大沉积物的完美识别，除非这些沉积物覆盖了坚固得多的坚硬材料。另一方面，相同的方法对于研究非常软的沉积物（泥土）非常有效，并且可以建立定量关系，以基于它们的共振频率确定这些沉积物的厚度。然后使用该关系绘制盆地中的泥炭厚度。将结果与该地区进行的重力研究和机械钻孔进行了比较。

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