Synchronous formation of the metamorphic sole and igneous crust of the Semail ophiolite: New constraints on the tectonic evolution during ophiolite formation from high-precision U-Pb zircon geochronology
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- 作者：Matthew Riouxa ; rioux@eri.ucsb.edu" class="auth_mail" title="E-mail the corresponding author ; Joshua Garbera ; b ; Ann Bauerc ; Samuel Bowringc ; Michael Searled ; Peter Kelemene ; Bradley Hackera ; b
- 关键词：ophiolite ; Oman ; United Arab Emirates ; Semail ; metamorphic sole ; zircon
- 刊名：Earth and Planetary Science Letters
- 出版年：2016
- 出版时间：1 October 2016
- 年：2016
- 卷：451
- 期：Complete
- 页码：185-195
- 全文大小：3375 K
文摘
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U–Pb zircon analyses date the timing of sole metamorphism in the Semail ophiolite.
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Metamorphism was diachronous at the two studied localities and spanned ≥1.3 Ma.
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Early sole metamorphism was synchronous with formation of the ophiolite crust.
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The data are consistent with ophiolite formation in a supra-subduction zone setting.
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New models for the formation and evolution of the metamorphic sole are proposed.