1 Department of Civil Engineering, Hindusthan College of Engineering and Technology, Coimbatore-641032, India. Electronic address: karunasamygis@gmail.com.
2 Department of Geology and Department of Mining Engineering, CEG, Anna University, Chennai-600025, India. Electronic address: geosubramani@gmail.com.
3 Department of Earth Sciences, Pondicherry University, Puducherry, India.
4 Department of Applied Geology, School of Applied Natural Science, Adama Science and Technology University, Adama, Ethiopia.
5 College of New Energy and Environment, Jilin University, 130021, PR China.
6 Department of Geology, The University of Peradeniya, Peradeniya, Sri Lanka.