In combination with seismic interpretations and geochronological constraints, the association of juvenile arc‐type low‐Ti tholeiitic basalts with komatiites in the southeastern Abitibi subprovince, Canada, supports a history of subduction step back following Late Archean mantle plume–island arc interaction. The resulting paired collision zones preserved abundant komatiites and numerous massive sulphide deposits and established the critical metallogenic features to concentrate the majority of Canada's Precambrian gold resources in a small area of the southern Abitibi subprovince.

中文翻译：

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加拿大阿比蒂比省的矿脉金矿床和太古宙地幔柱-岛弧相互作用

结合地震解释和地质年代学限制，加拿大阿比提比省东南部的幼年弧型低钛拉斑玄武岩与科马提岩的关联支持了晚太古代地幔柱-岛弧相互作用后俯冲倒退的历史。由此产生的成对碰撞区保留了丰富的科马提岩和大量块状硫化物矿床，并建立了关键的成矿特征，将加拿大的大部分前寒武纪金资源集中在阿比蒂比省南部的一个小区域。