John Carranza has been a Professor (Economic Geology) in the Department of Geology since 2022. Prior to this, he held the positions of Professor (Geological Sciences) at the University of KwaZulu-Natal (2017-2021); Associate Professor (Computational Modelling Applied to Exploration/Mining Geology) at James Cook University, Australia (2013-2016); Assistant Professor (Predictive Modelling in Geological/Mineral Exploration) at the University of Twente, the Netherlands (2003-2012); Researcher at the International Institute for Geo-Information Science and Earth Observation, the Netherlands (2001-2003), and exploration geologist/geochemist at the Mines and Geosciences Bureau, Philippines (1983-2001).
His research motivation is: ‘To develop and disseminate expertise/knowledge in predicting mineral prospectivity and estimating undiscovered mineral endowment through the understanding of relevant mineral systems and the application of GIS and remote sensing technology’. He has built an international expert reputation based on his papers on geochemical anomaly and mineral prospectivity mapping. Since studying for his PhD in 1997, he has published 282 papers in peer-reviewed international geoscience journals. In 2008, he published a book on Geochemical Anomaly and Mineral Prospectivity Mapping in GIS. Currently, he has an H-index of 75 and at least 19 000 citations (Google Scholar). He is a B1 NRF-rated researcher in South Africa and has been ranked by Stanford University as among the world's top 2% of scientists in the fields of Geochemistry and Geophysics.
Prof Carranza is a Fellow (2009-present) of the Association of Applied Geochemists and recently served as its President (2022-2023). He is a Fellow of the Society of Economic Geologists (2012-present) and a member of the International Association for Mathematical Geosciences (2004-present) and the Geochemical Society (2010-present). He was a Fellow of the Australian Institute of Geoscientists (AIG) (2014-2018) and a Registered Professional Geoscientist (2014-2018) with the AIG in the fields of Mineral Exploration, Geochemistry, and Information Geoscience.
He is the Editor-in-Chief of Natural Resources Research (2012-present) (IF 5.4; Q1 Geosciences, Multidisciplinary 22/202), Senior Associate Editor of Geochemistry: Exploration, Environment, Analysis (2010-present) (IF 2.4; Q2 42/87 Geochemistry and Geophysics), and Associate Editor of Journal of Geochemical Exploration (2010-present) (IF 3.9; Q1 19/87 Geochemistry and Geophysics) and Ore Geology Reviews (2011-present) (IF 3.3; Q1 5/48 Geology).
Prof Carranza is the recipient of the 2022 William Christian Krumbein Award, the highest award given by the International Association for Mathematical Geosciences (IAMG) to senior scientists for career achievement. The award recognises distinction in the application of mathematics or informatics in the earth sciences, service to the IAMG, and support to professions involved in the earth sciences.