Tracing ancient events in the lithospheric mantle: A case study from ophiolitic chromitites of SW Turkey
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- 作者：Mehmet Akbuluta ; c ; makbulut@deu.edu.tr" class="auth_mail" title="E-mail the corresponding author ; mehmet.akbulut@deu.edu.tr" class="auth_mail" title="E-mail the corresponding authorAuthor Vitae ; José ; Marí ; a Gonzá ; lez-Jimé ; nezbAuthor Vitae ; William L. GriffincAuthor Vitae ; Elena BelousovacAuthor Vitae ; Suzanne Y. O&rsquo ; ReillycAuthor Vitae ; Nicole McGowancAuthor Vitae ; Norman J. PearsoncAuthor Vitae
- 关键词：Ophiolitic chromitites ; Chromite trace-elements ; Platinum-group minerals ; Zircon ; Re&ndash ; Os isotopes ; U&ndash ; Pb isotopes
- 刊名：Journal of Asian Earth Sciences
- 出版年：2016
- 出版时间：1 April 2016
- 年：2016
- 卷：119
- 期：Complete
- 页码：1-19
- 全文大小：7940 K
文摘
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The SW Anatolian chromitites present SSZ arc-related and polygenetic origin.
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In-situ Os isotopes point to a heavily modified source via up to 40% crustal input.
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Based on the TRD ages of PGM, these chromitites should be no older than 0.25 Ga.
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U–Pb ages from zircon xenocrysts and TRD ages of PGM imply a Paleoproterozoic SCLM.
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Young metasomatic zircon implies timing of metasomatism beneath the Neotethyan SSZ.