New insights on Kimberlite emplacement around the Bundelkhand Craton using integrated satellite-based remote sensing, gravity and magnetic data

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.

Keywords:

• EIGEN6C4 gravity data
• EMAG2 magnetic data
• lineament density
• Lithospheric mantle density
• Moho topography
• Kimberlite emplacement
• Bundelkhand Craton
• Landsat 8 OLI

Acknowledgements

Authors are indebted to Prof. K. Lulla, Editor and Prof. Bradley C. Rundquist, Managing Editor, Geocarto International and the anonymous reviewers for their quick review and valuable suggestions. They are also grateful to Dr. K. Vinod Kumar; Group Head, Geosciences Group, NRSC for his valuable suggestions for improving the manuscript. The authors also wish to thank to Prof. N. M. Shapiro, Laboratoire de Sismologie, Institut de Physique du Globe & CNRS, Paris, France for providing the ages of the continental lithosphere derived from a global seismic tomographic model. The authors also wish to thank to the Director, IIT(ISM), Dhanbad for his keen interest in this study.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

The authors are thankful to ISRO, Dept. of Space, Govt. of India for funding RESPOND Project ISRO/RES/630/2016-17.