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  • Geology of the Barkerville Deposit



    Toronto Geological Discussion Group


Geology of the Barkerville Deposit

  • 12 Sep 2017
  • 4:00 PM - 6:00 PM
  • 20 Toronto Street, Toronto


Geology of the Barkerville Deposit

Terry Harbort, Chief Geoscientist, Barkerville Gold Mines

Since 1858, the Cariboo Gold Belt of south-central British Columbia has produced approximately 3.2 million ounces of gold from alluvial production and 1.3 million ounces from lode gold mines and remains today, one of Canada’s last great underexplored gold districts. Barkerville Gold Mines’ properties encompass 212,000 hectares of mineral rights in the Cariboo Gold Belt across an area that is 67 kilometres long and 25 kilometres wide.

The Bonanza Ledge Mine at Barkerville Mountain is BGM's initial production unit, situated approximately two kilometers northwest of the historical Williams Creek deposit, which yielded 85,000 ounces of alluvial gold production. On April 23, 2015 BGM announced the completion of Phase I test mining via open pit at Bonanza Ledge, with 91,234 tonnes processed at a head grade of 8.66 grams per tonne, yielding 23,726 ounces and a total recovery of 93.4 %.

A new underground mine at Bonanza Ledge was permitted in March 2017, which contains a measured and indicated resource of 684,900 tonnes at 7.21 grams per tonne and 158,800 ounces with 18,600 ounces in the inferred category. The focus of the next four years will be on underground production at both Bonanza Ledge and BC Vein, with the potential to develop other deposits nearby on Barkerville Mountain.

Bonanza Ledge contains disseminated gold mineralization in a calcareous siltstone, while BC Vein is a typical fault hosted quartz pyrite vein. Further exploration is planned to follow up on several new targets on Barkerville Mountain in the KL Zone and on the 2016 acquired Williams Creek tenements, which will add to the strike length of the BC Vein.

Speaker: Terry Harbort

Dr. Harbort is a professional economic geologist with 24 years of multi-continent experience in mineral exploration. His extensive post-graduate experience focusing on applied structural geology of ore deposits makes Mr. Harbort a specialist in mapping and interpretation of ore geometries and ore controls covering various types of geological environments with direct applications to mineral economics from target generation, target definition and evaluation, and project management. Terry is a recognized senior member of the discovery team of the La Colosa and Gramalote deposits for AngloGold Ashanti Ltd. where over a 9 year period he held positions of Senior Geologist and Chief Structural Geologist for the Americas. In 2010, Terry was a founder and is Vice President -Exploration of Talisker Exploration Services Inc. an exploration management company providing international exploration consulting in M & A and exploration strategy, project evaluation, target generation and exploration program design and implementation for Osisko Gold Royalties and related companies.

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