Remote detection of geological structures: an application to the Aravalli region, western India

Abstract

Optical and microwave remote sensing data are used in conjunction with a digital elevation model to map lineaments in the central parts of the Aravalli region, Rajasthan, western India. Lineament maps interpreted from each data-set are subsequently combined to derive a composite lineament map of the area. Rose plots are used to identify the prominent trends of the lineaments and compared with published structural map of the study area. Three major trends are identified, namely, the NE–SW, NNE–SSW and EW, which are interpreted to be, related to the DF1, DF2 and DF4 deformation phases identified by the previous workers through field studies. The lineaments are classified as fold axes or faults, and a total of 10-fold axes and 30 faults mapped in the area.

Keywords:

• Optical remote sensing
• SAR
• digital elevation models
• GIS
• lineament mapping

Acknowledgements

We are very thankful to the Japan Aerospace Exploration Agency to provide us ALOS PALSAR data under the announcement of opportunity project number 1072002. We would like to thank the German Aerospace Center - DLR for providing us the TanDEM-X COSSC data under the announcement of opportunity number XTI_GLAC0351. The authors would also like to thank Mr Surendar Manickam for his constant supervision throughout the download and processing of the data-sets.

Disclosure statement

No potential conflict of interest was reported by the authors.