Continental drift orogeny at the boundaries of convection cells. By 1967, barely two decades after discovery of the mid-oceanic rifts, and a decade after discovery of the striping, plate tectonics had become axiomatic to modern geophysics. In addition, Marie Tharp, in collaboration with Bruce Heezen, (who initially ridiculed Marie's observations that her maps confirmed continental drift theory), provided essential corroboration, using her skills in cartography and seismographic data, to confirm the theory. Evidence for the movement of continents on tectonic plates is now extensive. Similar plant and animal fossils are found around the shores of different continents, suggesting that they were once
Society for the Study of the Sudans UK Centre in Rutland Gate. More recently, international conferences have been convened in collaboration with the U.S.-based Sudan Studies Association (SSA) in Durham, England (2000), Washington DC (2003), Bergen, Norway (2006), Pretoria (2009) and Bonn (2012). Sandy Sanderson was the Society's second president, followed by the Sudanese novelist Tayeb Salih. The name was changed in 2016 to reflect the independence of South Sudan. Society for the Study of the Sudans UK The Society for the Study of the Sudans UK (SSSUK) is the largest UK-based professional association for scholars of Sudan and South Sudan. Founded in 1986, the Society's "overall aim