[S-CG42] 地球深部とダイナミクス理解の新展開

[SCG42-P03] Understanding the Earth's Interior and Dynamics : Interdisciplinary Approach

*渡辺 寛子¹、井上 邦雄¹、酒井 汰一¹、McDonough William^1,2,4、阿部 なつ江⁵、荒木 英一郎³、笠谷 貴史³、許 正憲³、櫻井 紀旭³、上木 賢太³、吉田 弘³、小俣 珠乃^3,6、山田 泰広³ (1.東北大学ニュートリノ科学研究センター、2.東北大学理学部地球科学専攻、3.海洋研究開発機構、4.Department of Geology, University of Maryland、5.国立研究開発法人海洋研究開発機構研究プラットフォーム運用開発部門マントル掘削プロモーション室、6.東北大学総合学術博物館)

キーワード：地球ニュートリノ、マントル掘削、地球深部、地球ダイナミクス

The interior of the Earth remains a mystery. It is some 6400 km to the center of the Earth, but we have only drilled 12 km deep and not yet reached the mantle. Seismologists have imaged Earth’s interior and defined its first order physical structures (e.g. core, lower and upper mantle, and Moho). The compositions of these structures are unknown, at some level, and must be interpret as we do not have techniques to measure their chemistry. To achieve new and unimagined insights into the Earth, we need to broaden our perspective and work across different disciplinary boundaries. New 21^st century technologies are providing transformative insights into deep Earth processes and chemistry. We started to construct interdisciplinary community to bring together scientists from physics, engineering and geoscience with a shared goal of the understanding the Earth’s interior and resolving the mysteries.

Various images of the Earth’s interior are based on the each investigating methods, such as geoneutrinos, scientific drilling, seismology, simulation, isotope study etc. Integrating the information enable us to create new knowledge and insights into the nature and processes occurring inside the Earth. This presentation will introduce current situation and future prospects of the interdisciplinary approach.