前言自1981年世界铜业景况开始恶化以来,洛内克斯(Lornex)与柯明科(cominco)两公司在加拿大不列颠哥伦比亚省高原山谷(Highland Valley)的矿山前景即每况愈下。尽管洛内克斯选矿联合企业已于1981年扩建成为世界最经济有效的铜钼选厂,但持续低落的金属价格仍使洛内克斯矿体保有的剩余矿量仅够维持其经济开采,并使矿山服 Foreword Since the world copper situation began to deteriorate in 1981, prospects for the mines of Lornex and Cominco in the Highland Valley, British Columbia, Canada, have deteriorated. Although the Lonexes beneficiation complex was expanded in 1981 to become the most cost-effective copper-molybdenum concentrator in the world, continued low metal prices still keep the remaining mineral reserves of the Lonexes ore body enough to sustain its economic exploitation, And make mine service