Canadian miner Barrick Gold is keen to top its $1.5-billion target for asset sales after shedding its half of the Super Pit gold mine in Western Australia, CEO Mark Bristow said on Monday. The deal is a first step in Barrick’s plan to jettison at least $1.5-billion in less-profitable assets by the end of 2020 in the wake of its acquisition of Rangold Resources a year ago.