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Awarded Paper

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  4. Profile of the First Author: Keiko Hattori
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Title: Subduction of mantle wedge peridotites: Evidence from the Higashi-akaishi ultramafic body in the Sanbagawa metamorphic belt.

Authors: Keiko Hattori; Simon Wallis; Masaki, Enami; Tomoyuki Mizukami

References: Island Arc, 19, 192–207 (2010)

Recommendation

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  2. Awarded Paper
  3. Recommendation
  4. Profile of the First Author: Keiko Hattori

The Higashi-akaishi ultramafic body is the largest garnet-bearing peridotites in the Sambagawa Metamorphic Belt. Through mineral chemistry of coexisting phases and coupled thermobarometric computations, the authors have clearly and unambiguously documented the hanging-wall, i.e., mantle wedge origin of the Higashi-akaishi peridotite; they have further chronicled its subsequent tectonic decoupling from the stable overlying plate and descent attending high-pressure recrystallization along the subduction channel in traction with the downgoing paleo-Pacific oceanic lithosphere. This paper provides a good constraint to consider the genesis of the Sambagawa metamorphic belt and an important insight into the not-well understood melting and tectonic processes in the wedge mantle, for which the article is highly evaluated. It will benefit not only the HP-UHP metamorphic petrologists but also a much broader scientific community involved in subduction zone research.

The paper received one of the highest number of citations – based on the Thomson Science Index for the year 2012 – amongst the entire candidate Island Arc papers published in 2010. The first author has been active in the research of the behaviour of redox-sensitive metals and volatiles in a variety of settings such as subduction zones and the Archean Canadian Shield, for more than 35 years. This paper adds to her many contributions and is a worthy recipient of the 2013 Island Arc award.

Profile of the First Author: Keiko Hattori

  1. Top of page
  2. Awarded Paper
  3. Recommendation
  4. Profile of the First Author: Keiko Hattori

Keiko Hattori is Professor in the Department of Earth Sciences at the University of Ottawa, where she has been based since 1983. Her research interests lie in the field of trace element and isotope geochemistry, particularly applied to solving questions related to tectonics and geological settings for mineral deposits. She completed BSc, MSc and PhD at the University of Tokyo, and was trained as an isotope geochemist during her PhD program with the late Professor Sakai at the Institute for Thermal Spring Research, Okayama University in Misasa. In 1977 she moved to Canada as a post-doctoral fellow at the University of Alberta to study alteration of Icelandic crust. She has worked on serpentinites in orogenic belts and their role in subduction zones since the 1990s, and is co-editor of the April 2013 issue of Elements on ‘Serpentinites’.

Apart from research, teaching and supervision, Dr. Hattori serves on the Editorial Board of Scientific Reports of Nature Publishing, and is Associate Editor of the Canadian Mineralogist and Journal of Geological Research. She was elected Fellow of the Royal Society of Canada in 2011.