Department Geology Advisory

Laurie Hassall

Laurie Hassall is a Geologist with 12 years’ experience in mineral exploration, project development and mining operations relating to Tungsten, Tin and Lithium.  Having held senior geology and technical services management roles for many companies across the SW of England,…

Senzeni Mandava Matondi

Senzeni Mandava Matondi is a Resource Geologist with over 22 years of practical experience in the fields of Resource Estimation and Evaluation, Exploration, Mining, Planning Geology, and Consulting. She holds an MSc in Engineering, specialising in Mineral Resource Evaluation and…

Guiselle Valderrama

Guiselle is a Principal Consultant based in Peru. She is  a geological engineer with more than 17 years of experience in the mining industry. Guiselle graduated from the Universidad Mayor de San Marcos Lima – Peru, with a Master’s degree…

Orestes Gómez González

Orestes is a Geological Engineer with more than 38 years’ of experience. He is a Principal Consultant based in our Chile office. Orestes is registered as a Competent Person with the Qualifying Commission of Competences in Mining Resources and Reserves…

Rowdy Bristol

Rowdy is a Principal Consultant with our Geology Division. He has deep familiarity with linear and non-linear resource estimation techniques, such as ordinary kriging, indicator kriging, inverse distance, conditional simulation, uniform and local uniform conditioning.  Rowdy, has more than 30…

Paul Mazzoni

Paul has more than 42 years of wide ranging geological experience in the mining and minerals industry. This includes over 20 years in senior positions managing geographically and culturally diverse multi-disciplinary exploration and project development teams on 6 continents. Experience…

Pablo Borges

Pablo is a Principal Resource Geologist based in Brazil. He has more than 15 years’ experience in Mineral Resources estimation, Mine Geology and Exploration for gold and copper deposits. He’s worked at Jacobina Gold Mine for Yamana, Córrego do Sítio…

Stefan Mujdrica

Stefan is an Executive Consultant with our Geology division. With more than 35 years’ mining industry experience, Stefan’s career has spanned from exploration to mining geology in a number of managerial roles and various locations. Stefan’s expertise includes technical reviews,…

Jane Levett

Jane is an Associate Principal Consultant in the Geology division. She has more than 20 years of experience in exploration, mine and resource geology working with companies including Gold Road, Gold Fields, Newcrest, Rio Tinto, and Optiro. She has geological…