Zr-in-rutile resetting in aluminosilicate bearing ultra-high temperature granulites: Refining the record of cooling and hydration in the Napier Complex, Antarctica
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- 作者：Ruairidh J. Mitchell ; ruairidhjmitchell@gmail.com ; Simon L. Harley
- 关键词：UHT metamorphism ; Granulites ; Zr-in-rutile geothermometry ; Phase equilibrium modelling ; Fluid&ndash ; rock interaction ; Napier complex
- 刊名：Lithos
- 出版年：2017
- 出版时间：February 2017
- 年：2017
- 卷：272-273
- 期：Complete
- 页码：128-146
- 全文大小：5601 K
- 卷排序：272
文摘
Peak ultra-high temperatures (UHT) > 1100 °C at 11–14 kbar in the Napier Complex. Post-peak evolution dominated by cooling and minor decompression to 850 °C, 11 kbar. Petrographic record of hydrous fluid–rock interaction during cooling below ~ 820 °C. Widespread Zr-in-rutile resetting throughout post-peak Napier Complex cooling. Valid Zr-in-rutile records of UHT conditions require zircon reintegration.