Institute of Geology, University of the Punjab, Lahore, Pakistan
Collage of Earth and Environmental Sciences, University of the Punjab, Lahore, Pakistan
Center for Geographic Information System, Punjab University Collage of Information Technology, Lahore,
Pakistan
Copyright © 2016 Muhammad Usman Saleem, Sajid Rashid Ahmed et al. This is
an open access article distributed under the Creative Commons Attribution
License, which permits unrestricted use, distribution, and reproduction in any
medium, provided the original work is properly cited.