Recycling and transport of continental material through the mantle wedge above subduction zones: A Caribbean example
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- 作者：Yamirka Rojas-Agramontea ; b ; c ; rojas@uni-mainz.de" class="auth_mail" title="E-mail the corresponding author ; Antonio Garcia-Cascod ; e ; Anthony Kempf ; g ; Alfred Krö ; nera ; b ; Joaquí ; n A. Proenzah ; Concepció ; n Lá ; zarod ; Dunyi Liua
- 关键词：crustal recycling ; zircon U&ndash ; Pb geochronology ; inherited zircon ; Hf isotopes ; O isotopes ; Cuba
- 刊名：Earth and Planetary Science Letters
- 出版年：2016
- 出版时间：15 February 2016
- 年：2016
- 卷：436
- 期：Complete
- 页码：93-107
- 全文大小：2654 K
文摘
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We report on the presence of inherited zircons in Cuban ophiolitic and volcanic rocks.
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The zircons most likely derived from northern South America and Mexican terranes.
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The detrital grains were likely transported into the mantle via subduction of oceanic crust.
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Zircon survival suggests that crustal recycling rates in some arcs may be higher than hitherto realized.