固体地球科学(S)
セッション小記号地球内部科学・地球惑星テクトニクス
セッションIDS-IT28
タイトル和文Seismic attenuation: Observations, Experiments, and Interpretations
英文Seismic attenuation: Observations, Experiments, and Interpretations
タイトル短縮名和文Seismic attenuation
英文Seismic attenuation
代表コンビーナ氏名和文武井 康子
英文Yasuko Takei
所属和文東京大学地震研究所
英文Earthquake Research Institute, University of Tokyo
共同コンビーナ 1氏名和文Douglas Wiens
英文Douglas Wiens
所属和文Washington University in St Louis
英文Washington University in St Louis
共同コンビーナ 2氏名和文竹内 希
英文Nozomu Takeuchi
所属和文東京大学地震研究所
英文Earthquake Research Institute, University of Tokyo
発表言語EE
スコープ和文
英文There has been great progress in determining the seismic attenuation structure of the Earth's upper mantle. A major limitation in the usefulness of these models remains the uncertainties in how to interpret seismic attenuation in terms of physical parameters such as temperature, melt, volatiles, and grain size. This also affects the seismological community's ability to use velocity measurements, since dispersion due to attenuation contributes significantly to velocity heterogeneity at high temperatures. There has also been much progress on the experimental studies of the rock anelasticity, both on natural and synthetic mantle materials and with analog materials. Appropriate application of these laboratory data to the seismic waves plays a key role to answer whether seismic structure can be interpreted consistently with geochemical and geodynamical constraints on the temperature and volatile/melt distributions in the upper mantle. The purpose of this session is to promote the mutual understanding of the present state of the knowledge in these observational, experimental, and application studies. Seismological, experimental, theoretical, and geochemical/geodynamical studies relevant to these topics are welcome.
発表方法口頭および（または）ポスターセッション
招待講演 Ian Jackson (ANU)
Donald Forsyth (Brown University)