Senior Team

Steven Bateman BSc (Hons), FGS

Senior Exploration Geologist

Steven has over 13 years' experience in exploration geology, encompassing a variety of base and precious metals, diamonds, industrial minerals and coal. Steven has participated in and overseen a number of projects within a wide variety of terrains across Africa, the Russian Federation, Central Asia and South America.

He has set up and managed remote exploration camps as well as worked on projects up to pre-feasibility stage. He has supervised a number of diamond drilling programmes and been responsible for implementing and maintaining QA/QC standards in drilling, logging and sampling. Before working for SRK ES, he gained 3 years' experience as a wireline geophysical logging engineer in Western Europe on water and coal projects.

Steven joined SRK Exploration Services in 2008.

James O'Donovan Senior

James O'Donovan BSc (Hons), FGS

Senior Exploration Geologist

James has over 11 years' experience of grassroots to prefeasibility stage exploration projects, principally in West Africa.  Many of these projects have involved building exploration teams and infrastructure to start projects in remote and resource poor locations. He has worked on numerous gold, base metal and iron ore projects, conducting geological mapping, geophysics and drilling campaigns.

James had worked as an associate of SRK ES for many years before joining the company full-time in 2013.

Colin Rawbone BSc, MSc, FGS, MAusIMM

Senior Exploration Geologist

Colin joined SRK Consulting (UK) Ltd as a Resource Geologist in 2010 after 5 years working on grassroots gold exploration projects in the Central African Republic and Liberia.  He has wide-ranging experience of reconnaissance mapping and sampling, through to managment of multi-rig resource drilling programmes.  Colin is proficient in 3D geological modelling, resource estimation and reporting to NI 43-101 and JORC Code guidelines.

Colin transferred to SRK ES in 2015.

Oliver Bayley MSc (MCSM), FGS, MAusIMM

Senior Exploration Geologist

Oliver has over 14 years’ experience in the mining industry working on projects from grassroots exploration through to resource estimation, mine development and production. Oliver’s expertise lies in the planning, management and implementation of mineral exploration programmes; including target generation, prospect evaluation, extensive diamond and reverse circulation drilling, aerial and ground geophysics, geochemical sampling, and mapping.

Oliver joined SRK ES in 2013.  He brings with him extensive experience in Proterozoic copper-gold, silver-base metal, hardrock and alluvial tin, and diamond exploration in Australia and Africa. He is a Competent Person for the reporting of exploration results and technical reports under the JORC Code.

Harri Rees MSc (MCSM), FGS

Senior Exploration Geologist

Harri is an exploration geologist and resource consultant with over 8 years’ experience. He has practical experience in exploration programme planning, exploration drilling management and geological field mapping. Harri has a background in resource geology where he acquired specialist knowledge of geological data acquisition, QAQC and management, 3D geological modelling, geostatistics and producing and reporting Mineral Resource Estimates to CRIRSCO International Reporting Code guidelines.

Harri has worked on a variety of precious, industrial and base metal projects at various stages of development and has worked in Africa, Australia, Europe, Greenland, North America and the Middle East.

Daniel Marsh MGeophys, FGS

Senior Exploration Geologist

Dan holds a Master’s degree in Geophysics from the University of Southampton and has 10 years of experience in the application of geophysical methods in early-stage mineral exploration. As a strong advocate of the integration of geophysical and geological data in interpretation and informed decision making, Dan has developed his skills in exploration programme design and management to complement his geophysical background.

He has run drilling programmes in Saudi Arabia, Greenland and Gabon for gold and iron ore and has drafted numerous NI43-101 and JORC Code compliant technical reports to support AIM and TSX stock exchange listings.




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