Session outline
Solid Earth Sciences(S)
Session Sub Category Science of the Earth's Interior & Tectonophysics(IT)
Session ID S-IT08
Title Structure and Dynamics of Suboceanic Mantle: Theories and Observations
Short title Structure/Dynamics of Suboceanic Mantle
Convener Name Jun Korenaga
Affiliation Department of Geology and Geophysics, Yale University
Co-convener 1. Name Hitoshi Kawakatsu
Affiliation Earthquake Research Institute, University of Tokyo
Co-convener 2. Name James Gaherty
Affiliation Lamont Doherty Earth Observatory, Columbia University
Co-convener 3. Name Kiyoshi Baba
Affiliation Earthquake Research Institute, University of Tokyo
International Symposium 'International Symposium' in addition to Scientific session.
Language English
Scope The operation of plate tectonics is what makes the Earth a unique planet
in the solar system, but why plate tectonics takes place is still
unresolved, creating a considerable bottleneck in the theory of
planetary evolution at large. A key to this long-standing question is
believed to be in the suboceanic mantle, in particular its lithospheric
and asthenospheric components, because the defining characteristic of
plate tectonics is the subduction of oceanic plates. Our understanding
of the structure and dynamics of suboceanic mantle is, however, yet to
be advanced to address the origin of plate tectonics. For example, it is
still difficult to answer how strong oceanic plates actually are and
what observations can possibly constraint it. In this session, we call
for contributions from relevant disciplines including mantle dynamics,
rock mechanics, marine geophysics, and global seismology, to discuss the
status quo and explore new research directions. Given this exploratory
nature, contributions with unusual angles (e.g., ones with only indirect
connection, or proposals for innovative observation) are strongly
Type of presentation Oral and Poster presentation
Invited papers Brian Kennett(Australian National University), Jim Gaherty(Lamont-Doherty Earth Observatory), Eric Debayle(ENS Lyon), Taras Gerya(ETH), Cecilia Cadio(Universite Montpellier), Hisashi Utada(ERI, University of Tokyo), Takehiko Hiraga(ERI, University of Tokyo), Naoto Hirano(Tohoku University)