Abstract

The present study attempts a conjugate analysis of satellite-based remote sensing, gravity, and magnetic data for evaluation of structures and tectonic for new insights on Kimberlite emplacement around the Bundelkhand Craton. Initially, Landsat Operational Land Imager (OLI) data has been enhanced using high-pass filtering for the delineation of lineaments. A combined lineament density map has been prepared from the processed Landsat image, Bouguer gravity, and RTP (Reduction to pole) magnetic data, which are further correlated with the reported Kimberlite/Lamproite pipes. The depth to the lithospheric Mantle of the study area has been estimated from EIGEN6C4 Bouguer gravity data using the Parker-Oldenburg algorithm. The association of the reported Kimberlite/Lamproite pipes in the study area have been analyzed with the i) composite lineament density map, ii) different mantle blocks of high and low Moho depths, iii) lithospheric mantle density, and iv) tectonic setting. Some new potential zones for Kimberlite/Lamproites emplacement have been identified based on the integrated analysis of the above mentioned parameters.

摘要

本研究尝试对基于卫星的遥感、重力和磁数据进行共轭分析，以评估结构和构造，以获得对邦德尔坎德克拉通周围金伯利岩侵位的新见解。最初，Landsat Operational Land Imager (OLI) 数据已使用高通滤波来增强轮廓线的描绘。已从处理后的 Landsat 图像、布格重力和 RTP（还原为极点）磁数据准备了组合的线状密度图，这些数据与报告的金伯利岩/兰普罗岩管进一步相关。研究区岩石圈地幔的深度已使用 Parker-Oldenburg 算法从 EIGEN6C4 布格重力数据估计。研究区报告的金伯利岩/兰普罗岩管的关联已通过 i) 复合线状密度图、ii) 高和低莫霍面深度的不同地幔块、iii) 岩石圈地幔密度和 iv) 构造背景进行了分析。基于对上述参数的综合分析，已经确定了一些新的金伯利岩/兰普罗岩就位潜在区域。