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首页> 外文期刊>Earth, planets and space: EPS >Imaging of subsurface lineaments in the southwestern part of the thrace basin from gravity data
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Imaging of subsurface lineaments in the southwestern part of the thrace basin from gravity data

机译：利用重力数据对色雷斯盆地西南部地下岩层成像

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摘要

Linear anomalies, as an indicator of the structural features of some geological bodies, are very important for the interpretation of gravity and magnetic data. In this study, an image processing technique known as the Hough transform (HT) algorithm is described for determining invisible boundaries and extensions in gravity anomaly maps. The Hough function implements the Hough transform used to extract straight lines or circles within twodimensional potential field images. It is defined as image and Hough space. In the Hough domain, this function transforms each nonzero point in the parameter domain to a sinusoid. In the image space, each point in the Hough space is transformed to a straight line or circle. Lineaments are depicted from these straight lines which are transformed in the image domain. An application of the Hough transform to the Bouguer anomaly map of the southwestern part of the Thrace Basin, NW Turkey, shows the effectiveness of the proposed approach. Based on geological data and gravity data, the structural features in the southwestern part of the Thrace Basin are investigated by applying the proposed approach and the Blakely and Simpson method. Lineaments identified by these approaches are generally in good accordance with previously-mapped surface faults.
机译：线性异常是某些地质物体结构特征的指标，对于解释重力和磁数据非常重要。在这项研究中，描述了一种称为Hough变换（HT）算法的图像处理技术，用于确定重力异常图中的不可见边界和扩展。霍夫函数实现了霍夫变换，用于提取二维势场图像中的直线或圆。它定义为图像和霍夫空间。在霍夫域中，此函数将参数域中的每个非零点转换为正弦曲线。在图像空间中，霍夫空间中的每个点都将转换为直线或圆。从这些在图像域中变换的直线描绘了线条。将霍夫变换应用于土耳其西北色雷斯盆地西南部的布格异常图，证明了该方法的有效性。根据地质数据和重力数据，采用拟议的方法以及Blakely和Simpson方法研究了色雷斯盆地西南部的构造特征。用这些方法确定的线条通常与先前映射的表面断层很好地吻合。

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