A Synthesis of the Physical State of the Mantle Wedge in Costa Rica-Nicaragua and Izu-Bonin-Mariana

该奖项是根据2009年美国复苏和再投资法案（公法111-2）资助的。它将支持一名新的研究人员与Ikuko Wada的博士后奖学金，利用两个边缘焦点地点，即伊豆-博宁-马里亚纳和哥斯达黎加-尼加拉瓜的数据，模拟地幔楔的物理特性。她将由两位经验丰富的地球科学家Mark Behn和Alison Shaw（仅赞助pi）指导，他们都来自WHOI。和田吗?S博士的研究为提出的工作提供了很好的背景，她已经做出了重大贡献，证明了俯冲板块与上覆地幔之间的最大解离深度控制、地幔楔流模式和弧前区域的热结构，并且对于大多数俯冲带来说，这个深度通常为70-80公里。她将使用一系列约束条件，包括地震、热流和地球化学数据，来进行建模工作。更广泛的影响包括一位年轻女性调查员的支持，从这项工作中获得的见解将对边缘社区广泛有用。

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-2). It will support a new investigator with a MARGINS Postdoctoral Fellowship for Ikuko Wada to model the physical properties of mantle wedges using data from two MARGINS focus sites, i.e., Izu-Bonin-Marianas and Costa Rica-Nicaragua. She will be supervised by two experienced geoscientists, Mark Behn and Alison Shaw (sponsoring PIs only), both at WHOI. Wada?s doctoral research presents an excellent background for the proposed work in which she has already made a significant contribution by demonstrating that the maximum depth of decoupling between the subducting slab and the overriding mantle controls, the mantle wedge flow pattern and the thermal structure of the forearc-arc region and that this depth is typically 70-80 km depths for most subduction zones. She will use an array of constraints, including seismic, heat flow and geochemical data, for the modeling effort.Broader impacts include the support of a young female investigator and insights gained from this work will be useful broadly to the MARGINS community.