Sial Alcides Nobrega

Sial is full professor (retired, 2012; Emeritus Professor, 2016) in the Department of Geology, Federal U. of Pernambuco, Brazil (UFPE). He obtained his PhD from UC Davis (1974) and did postdoctoral work at the U. of Texas at Austin (1977-78), U. of Georgia at Athens (entire 1983, entire 1988) and U. of Wisconsin (2001). He also trained in Portugal, Canada, Japan and Scotland. He founded a Laboratory for Stable Isotope Studies at UFPE, only one in South America with facilities to analyze O isotopes from silicates, and pioneered the use of isotope stratigraphy in S. America. He has received several honours including: Silver Hammer and José Bonifacio Golden Medals (Brazilian Geological Society); Centennial Medal, Engineering School, UFPE; National Order of Scientific Merit commendator and Grao Cruz classes (by President of Brazil decree); special foreign member, Society of Resource Geology, Japan; and foreign member, Brazilian Academy of Sciences, Lisbon Academy of Sciences, Portugal.