Relative contribution of magmatic and post-magmatic processes in the genesis of the Thompson Mine Ni-Co sulfide ores, Manitoba, Canada

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• 作者：Peter C. Lightfoot^a ; ^{peter@lightfootgeoscience.ca} ; Rob Stewart^b ; Graeme Gribbin^c ; Scott J. Mooney^d
• 关键词：Sediment-hosted nickel sulfide ; Thompson Nickel Belt ; Thompson Deposit ; Lithostratigraphy ; Structural controls ; Sulfide kinesis
• 刊名：Ore Geology Reviews
• 出版年：2017
• 出版时间：April 2017
• 年：2017
• 卷：83
• 期：Complete
• 页码：258-286
• 全文大小：8730 K
• 卷排序：83

文摘

The sediment-hosted Thompson Ni sulfide deposits are related to serpentinised dunite and peridotite intrusions. The pyrrhotite-pentlandite ores have a primary magmatic origin, but have been modified during deformation. Reformation of monosulphide solid solution and translocation of sulphide occurred during D1-2. Variations in Ni tenor of sulphide are co-linear with the axes of D3 deformation. Geochemical zonation of the ore system in the context of geology provides a guide to exploration.