Wernecke Breccia-associated iron oxide-Cu-Au mineralization, Yukon, Canada

Hunt, J.A., Baker, T., and Thorkelson, D.J. (2003) Wernecke Breccia-associated iron oxide-Cu-Au mineralization, Yukon, Canada. In: Proceedings of the Seventh Biennial SGA Meeting on Mineral Exploration and Sustainable Development (2), pp. 985-988. From: Seventh Biennial SGA Meeting on Mineral Exploration and Sustainable Development, 24-28 August 2003, Athens, Greece.

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Abstract

Iron oxide-copper-gold mineralization occurs within Early Proterozoic Wernecke Breccia and adjacent metasomatised country rock. Multiple phases of mineralization are evident and occur as disseminations, breccia matrix and veins. Brecciation is associated with widespread albite andlor potassium feldspar alteration, local ankerite-magnetite±hernatite alteration and abundant carbonatization. Breccia emplacement took advantage of pre-existing crustal weaknesses such as faults, fold axes and joints. Breccias occur as large zones with crackle brecciated contacts and smaller "dyke-like" bodies with sharp contacts. Mineralization associated with Wernecke Breccia is included within the Proterozoic iron oxide (Cu-V-Au-REE) class and is similar to deposits in other areas including those in the Cloncurry and Olympic Dam districts of Australia.

Item ID: 7670
Item Type: Conference Item (Refereed Research Paper - E1)
Keywords: iron oxide-copper-gold; iron oxide; Wernecke Breccia; breccia; Proterozoic; Yukon
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ISBN: 978-90-77017-77-7
Date Deposited: 28 Jun 2010 01:08
FoR Codes: 04 EARTH SCIENCES > 0403 Geology > 040307 Ore Deposit Petrology @ 100%
SEO Codes: 84 MINERAL RESOURCES (excl. Energy Resources) > 8401 Mineral Exploration > 840105 Precious (Noble) Metal Ore Exploration @ 100%
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