10:45 AM - 11:00 AM
*Geoffrey Hugo Grantham1, Conrad Adolf Groenewald1, Riaan Bothma2, Petrus le Roux3, Kenji Horie4 (1.Department of Geology, University of Johannesburg, Auckland Park, South Africa, 2.6 Van Broekhuizen Street Kuilsrivier 7580 South Africa, 3.Department of Geological Sciences, University of Cape Town, Rondebosch, South Africa, 4.National Institute of Polar Research, Tachikawa, Japan.)