1. Discipline of Earth Sciences, School of Physics, Chemistry and Earth Sciences, University of Adelaide, North Terrace Campus, Adelaide 5005, South Australia, Australia
2. Department of Geology and Petroleum Geology, University of Aberdeen, Old Aberdeen, Aberdeen AB24 3UE, Scotland, UK
3. SLB Egypt, 25 Misr Helwan Rd, Zeiny Tower, MAADI, Cairo, Egypt