Grant Couston

Grant Couston possesses over 25 years experience as a geophysicist predominately in the mineral exploration industry and crossing a broad range of minerals and deposit types. He graduated from the Curtin University of Technology, Western Australia in 1999 with BSc (Hons) Geophysics before working for several geophysical contractors, covering projects throughout Australia and internationally. A later focus on EM saw him providing consulting services to various WA based nickel explorers with Geoforce/Ground Probe, before taking a position with Ivanhoe Australia as Senior Geophysicist, supporting their exploration team with multi-commodity exploration in NW QLD. From 2015, Grant has been providing geophysical consulting services to the mineral exploration industry with both Geo Discovery Group in Brisbane, and from 2019 Southern Geoscience Consultants in Perth as a Principal Geophysicist. In the later role consulting to in excess of 30 clients over a calendar year resulting in being awarded SGC MVP for 2021. He joined ExploreGeo in 2025 as an independent consultant.

Grant has extensive experience covering potential field and electrical geophysical techniques encompassing acquisition, processing, modelling and through to interpretation. He is considered an expert in electromagnetics. He has proven capabilities in managing multiple projects simultaneously covering many mining jurisdictions within Australia and internationally.

Grant is an active member of the ASEG and AIG.