Creaser, Robert A., Heaman, Larry M., Erdmer, Philippe (1997) Timing of high-pressure metamorphism in the Yukon – Tanana terrane, Canadian Cordillera: constraints from U – Pb zircon dating of eclogite from the Teslin tectonic zone. Canadian Journal of Earth Sciences, 34 (5) 709-715 doi:10.1139/e17-057
| Reference Type | Journal (article/letter/editorial) | ||
|---|---|---|---|
| Title | Timing of high-pressure metamorphism in the Yukon – Tanana terrane, Canadian Cordillera: constraints from U – Pb zircon dating of eclogite from the Teslin tectonic zone | ||
| Journal | Canadian Journal of Earth Sciences | ||
| Authors | Creaser, Robert A. | Author | |
| Heaman, Larry M. | Author | ||
| Erdmer, Philippe | Author | ||
| Year | 1997 (May 1) | Volume | 34 |
| Issue | 5 | ||
| Publisher | Canadian Science Publishing | ||
| DOI | doi:10.1139/e17-057Search in ResearchGate | ||
| Generate Citation Formats | |||
| Mindat Ref. ID | 482964 | Long-form Identifier | mindat:1:5:482964:9 |
| GUID | 0 | ||
| Full Reference | Creaser, Robert A., Heaman, Larry M., Erdmer, Philippe (1997) Timing of high-pressure metamorphism in the Yukon – Tanana terrane, Canadian Cordillera: constraints from U – Pb zircon dating of eclogite from the Teslin tectonic zone. Canadian Journal of Earth Sciences, 34 (5) 709-715 doi:10.1139/e17-057 | ||
| Plain Text | Creaser, Robert A., Heaman, Larry M., Erdmer, Philippe (1997) Timing of high-pressure metamorphism in the Yukon – Tanana terrane, Canadian Cordillera: constraints from U – Pb zircon dating of eclogite from the Teslin tectonic zone. Canadian Journal of Earth Sciences, 34 (5) 709-715 doi:10.1139/e17-057 | ||
| In | (1997, May) Canadian Journal of Earth Sciences Vol. 34 (5) Canadian Science Publishing | ||
| Abstract/Notes | Zircon from eclogite near Last Peak in the Teslin tectonic zone yielded a U–Pb isotopic age of 269 + 2 Ma (2σ), the first precise age for such a rock in the Yukon –Tanana terrane of the Canadian Cordillera. Both the morphology and geochemistry of the eclogitic zircons indicate a metamorphic origin, and the U – Pb age therefore constrains the timing of peak high-pressure metamorphism in this rock. The U – Pb age demonstrates for the first time that an Early Permian high-pressure metamorphic event occurred in rocks now making up the Teslin tectonic zone, and possibly elsewhere in the Yukon – Tanana terrane. This U – Pb age provides a new geochronologic "pin" in the evolution of the Yukon – Tanana terrane prior to its Mesozoic accretion to the North American continental margin and, combined with recent 40Ar/39Ar muscovite data, indicates that high-pressure metamorphism at this time was a relatively short-lived event. | ||
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