Mid-mantle heterogeneities and iron spin transition in the lower mantle: Implications for mid-mantle slab stagnation

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• 作者：M.H. Shahnas^a ; ^b ; ^{shahn004@umn.edu} ; D.A. Yuen^b ; ^c ; ^d ; ^{daveyuen@gmail.com} ; R.N. Pysklywec^a ; ^{russ@es.utoronto.ca}
• 关键词：iron spin transition ; solid&ndash ; solid phase transition ; mantle mixing ; slab stagnation
• 刊名：Earth and Planetary Science Letters
• 出版年：2017
• 出版时间：15 January 2017
• 年：2017
• 卷：458
• 期：Complete
• 页码：293-304
• 全文大小：4120 K
• 卷排序：458

文摘

Iron spin transition in the lower mantle minerals may enhance mantle mixing. The spin transition may cause slab stagnation in the lower mantle depths. Cold slabs can stall in the mid mantle for tens of million years or even longer.