| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8910378 | Chemical Geology | 2018 | 10 Pages |
Abstract
SIMS oxygen isotope analysis of co-crystalline zircon and baddeleyite from the 2.2â¯Ga Duck Lake sill (DLS) in the Northwest Territories, Canada, yield predominant δ18OVSMOW modes of +6.0â° and +3.2â°, respectively. This difference is consistent with preserving high-temperature isotopic equilibrium between zircon and baddeleyite. DLS baddeleyite δ18O data as a whole are negatively skewed (to 0.0â°), and interpreted to reflect low temperature, open-system behaviour. Zircon δ18O are less affected, but also show hints of the same influences of secondary alteration and oxygen isotope exchange.
Keywords
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Authors
J.H.F.L. Davies, R.A. Stern, L.M. Heaman, D.E. Moser, E.L. Walton, T. Vennemann,