Geology, mineralization and geochronology of the Conrad Zone carlin-type gold prospect, east-central Yukon Territory, Canada ...

• Main Author: Tucker, Michael J.
• Format: Text
• Language: English
• Published: University of British Columbia 2015
• Subjects: Dawson; Yukon
• Online Access: https://dx.doi.org/10.14288/1.0166106; https://doi.library.ubc.ca/10.14288/1.0166106

The Nadaleen Trend is a recently discovered, 25 kilometer long trend of mineralization along the northern margin of the Selwyn Basin in east-central Yukon. The regional geologic framework and style of mineralization are both analogous to the Carlin trend in Nevada. The Nadaleen Trend is bound structurally to the south by the regional scale Dawson Thrust and the Kathleen Lakes Fault to the north. This structural setting marks the boundary between the dominantly Neoproterozoic to Paleozoic slope and basin facies carbonates, siltstones and clastic rocks of the Selwyn Basin and Mackenzie Platform stratigraphy. Research efforts are focused on the Conrad and Osiris Zones within the eastern Nadaleen Trend, the first Carlin-type discoveries in the area. Mineralization accompanies the process of decarbonatization of host limestone and subsequent silicification and brecciation. This is reflected in mineralized zones occurring as breccias containing jasperoid replacement of carbonate by quartz and late, open space ...