Geology and mineralization at Independence Creek : Dawson Range, West-central Yukon Territory ...

• Main Author: McKenzie, Greg
• Format: Text
• Language: English
• Published: University of British Columbia 2014
• Subjects: Dawson; Yukon
• Online Access: https://dx.doi.org/10.14288/1.0166900; https://doi.library.ubc.ca/10.14288/1.0166900

The Independence Creek (“Boulevard”) area in the Dawson Range district in west-central Yukon has recently received new government geological mapping; however, little is known about the nature or origin of gold mineralization in this region. A regional metallogenic framework for the mineralization is proposed herein, based on geological, structural, geochronological, and fluid inclusion studies. The study area is underlain by Paleozoic metamorphic rocks of the Yukon-Tanana terrane and is flanked to the north by the mid-Cretaceous Coffee Creek plutonic suite, a phase of the Dawson Range batholith to the southwest. Two separate but related mineralizing systems have been identified within the study area: the Sunset Trend, a gold exploration target, and the Toni Tiger molybdenite occurrence. Gold mineralization in the Sunset Trend is hosted in a chlorite-biotite ± actinolite schist along brittle northwest-trending structures. The highest gold grades are associated with fault zones, locally including vein breccia, ...