Yukon Geological Survey publication metadata (English, HTML)

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2026-09-09

The Emerald Lake pluton, of the mid-Cretaceous Tombstone plutonic suite in Yukon is concentrically-zoned, and comprises four distinct mapped phases: augite syenite, hornblende quartz syenite, hornblende quartz monzonite, and biotite granite. U-Pb and Ar-Ar dates on major intrusive phases return statistically identical ages (93.1 Ma). The intrusion is also characterized by large miarolitic cavities distributed along the southern margin of the intrusion. A copy of this thesis is available at the EMR library – QE195 D86 1999. This thesis is available online at https://circle.ubc.ca/handle/2429/9367.

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