Our Team

William Threlkeld is acknowledged as one of North America's outstanding geologists. For the past 19 years, Mr. Threlkeld has served as Senior Vice President of Seabridge Gold where he has designed and executed exploration and resource delineation programs which have defined more than 45 million ounces of measured and indicated gold resources. His team's successes include the discovery and definition of the Mitchell and Iron Cap deposits which have made the KSM project in British Columbia the largest gold reserve in Canada. Mr. Threlkeld began his career at Noranda Exploration Inc. but achieved his greatest recognition at Placer Dome Inc. From 1991 to 1997, as Exploration Manager and Vice President, he was responsible for all of Placer Dome's exploration activity and investment in Latin America, directing programs that resulted in the discovery and delineation of Las Cristinas, Venezuela (9.7 million ounces), Cerro Crucitas, Costa Rica (2.3 million ounces) and Mulatos, Mexico (2.0 million ounces). From 1997 to 2000, he was Vice President, Exploration for Greenstone Resources Ltd. responsible for resource delineation on three Central American gold deposits and development of an organization and strategy to identify new mineral investments. Mr. Threlkeld holds an MSc in Economic Geology from the University of Western Ontario and BSc in Geology from Colorado State University.

For the past 20 years, Brent Murphy has developed and led the environmental permitting strategy for the Company’s projects situated throughout North America.  A seasoned and collaborative leader, he was instrumental in leading the technical and social teams that obtained the federal and provincial environmental assessment approvals for KSM, one of the world’s largest undeveloped gold-copper projects, in 2014 following a seven-year review process. Mr. Murphy is a former exploration geologist who holds an M.Sc. in Geology (Geochemistry) from Acadia University. Before joining Seabridge Gold, he was the Chief Environmental Officer for the EKATI Diamond Mine in the Northwest Territories of Canada and the Environmental Manager for NovaGold (Alaska).  He also held roles as a permitting advisor to the Federal and Territorial governments, assisting in reviewing greenfield and brownfield projects throughout Northern Canada. Over the past thirty two years, Mr. Murphy has developed extensive experience in Indigenous, public and government engagement and consultation in support of the social acceptance for resource extraction projects. He has developed a keen understanding of the developmental risks associated with these projects, and he has successfully participated in the permitting several North American-based mining projects.

Elizabeth Miller has 20+ years of experience managing and implementing projects in BC, and Canada’s north. She is responsible for the environmental and reclamation programs for Seabridge Gold, including liaising with contractors, Federal and Provincial governments, indigenous communities and public interest groups for the past nine years. Her range of experience includes working as a Senior Biologist with the Government of BC, Environmental Specialist with BHP Billiton at the EKATI Diamond Mine, as well as consulting on environmental programs for a variety of developmental projects. Originally from Newfoundland and a member of the Qalipu Mi’kmaq First Nation, she grew up in the Northwest Territories and currently resides in Smithers, British Columbia (BC). Mrs. Miller is a Registered Professional Biologist in BC and holds a Master of Science degree.

Mr. Meintjes brings to Seabridge 25 years of experience in mining project development in North America, South America, Europe and Africa. His recent practice as a consultant followed a career with Anglo American, Anglo Gold, Rio Tinto and Teck, with experience in mine evaluations, project acquisitions, metallurgical process development, strategic mine planning, and operations value optimization.

He is a Qualified Person in terms of NI 43-101, has co-authored numerous technical reports, and has been involved in a number of mining projects that have successfully advanced from early stage to construction and commissioning. Mr. Meintjes has worked as consultant on the development of the KSM Project for more than 10 years prior to joining Seabridge full time.

Marcus Adam was part of the Seabridge team that discovered and delineated the Deep Kerr and Lower Iron Cap zones at the KSM project. He is responsible for designing and executing the exploration programs at the Iskut and Courageous Lake projects. Mr. Adam is a Professional Geologist registered in British Columbia and obtained his MSc. in Geology (Research into mineralisation styles at Courageous Lake project) from the University of Western Ontario.