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DuoJun Wang

Self Introduction

My name is Duojun Wang; I am an associate professor in Graduate University of Chinese Academy of Sciences. My research interests include laboratory measurements of electrical properties of hydrogen-bearing mantle minerals and how can we apply such information to understand geological and geophysical problems on earth. During my stay here at ERI, I am working on mapping the distribution of water in the mantle using electrical conductivity of hydrous mantle minerals combined with the recent Magnetotellric and geomagnetic depth sounding studies.

Research Report

I am an associate professor in Graduate University of Chinese Academy of Sciences. My research interests include laboratory measurements of electrical properties of hydrogen-bearing mantle minerals and how can we apply such information to understand geological and geophysical problems on earth. Kindly invited and supported by Earthquake Research Institute of Tokyo University, I worked as visiting associate professor from July 21, 2008 to January 21, 2009.

During my stay here at ERI, I was working on mapping the distribution of water in the mantle using electrical conductivity of hydrous mantle minerals combined with the recent Magnetotellric and geomagnetic depth sounding studies.

During the visit, I was hosted by Professor H.Utada, and I discussed with him about results on electrical conductivity of hydrous mantle mineral from two groups, and problems related to measurement methods. I gave a seminar and discussed with some scientist who presented there. I learned from Professor Utada the geophysical observations such as MT and GDS, and we exchanged the idea on the how to use electrical conductivity of mantle mineral to explain the geophysical observations. I am impressed by introduction of Professor Utada on their work in GDS and MT.

I made short visit to Institute for study of the earth’s interior Okayama University on September 4-6. I gave a seminar in Missa and discuss with Prof. Katsura and assoc. prof. Yoshino and Prof. Ito and changed the ideas. We also discussed the collaboration in the future.

I was also invited by Dr. Yu Nishihara form Tokyo Institute of Technology (TIT) to make a short visit and give a seminar and discussed the conduction mechanism of hydrous mineral with some scientists in TIT.

During the visit, I met Professors Hitoshi Kawakstsu, and met the entire scientist in the oceanic hemisphere research center (OHRC) and discussed with some scientists. I also met and discussed with Professor W. Sun, Dr.Kenji Mibe, Dr.Takehiko Hiraga talk about with them about scientific research. I also met Professor Ravi Kumar Mangalampally from National Geophysical Research Institute in India, Prof.Weerachai Siripunvaraporn from Mahidol University in Thailand.Dr.Feiwu Zhang from Swiss Federal Institute of Technology (ETH) ZurichMs. Professor Michael Kendall from University of BristolTokie in United Kingdom, Professor Hiroo KANAMORI from California Institute of Technology in USA, Professor Luis Alberto Rivera from Ecole et Observatoire de Sciences de la Terre, Louis Pasteur University, Strasbourg . I feel ERI is an active and vital institute in many research fields

I collaborated with Prof.Utada and Dr.Kenji Mibe to synthesis the polycrystalline clinepyroxene at high temperature at high pressure. I also collaborated with Prof.Yoshino at Missa to measure the electrical conductivity of clinepyroxene at high temperature and high pressure. Our results will provide the basic data on the electrical conductivity of hydrous mantle minerals and help to determine the water content in the mantle. Hopefully, we can get more data on this research and publish papers in the future. We expect that we can collaborate in the future.

I enjoy the time in Tokyo, and I hope I visit the ERI again in the future. Thanks are due to Profs. T. Kato, Prof.H.Utada, Ms. Tokie Watanabe, Ms.Kimita. Ms.Kawamura, for their helps during the application, the documents processing, the traveling, and the living and research in Tokyo.