M. Gurhan YALCIN (Turkey, 1967), holds a degree in geology, master and a doctorate degree in the field of ore deposits from the Cukurova University, Adana. He has 23 years experience in ore deposits, medical geology, environmental geology problems in different parts of the world. Since 2011 he has been a professor at Akdeniz University and Head of the Geological Engineering department, now. He is teaching and conducting research in the field of ore deposits and heavy metals, molasses soil, gallstone, natural radiation (gamma) of medical geology. He has organized and coordinated two national medical geology conferences (2009 and 2013) in Turkey.