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研究紹介

同位体地質学研究室(サティッシュ研究室)

研究室HP:

http://geo.sc.niigata-u.ac.jp/~satish/index.html

教員
研究分野

岩石学, 同位体地質学

研究テーマ
  • 1)地球深部炭素循環の解明
  • 2)大陸地殻における岩石と流体の相互作用
  • 3)先カンブリア時代の地球環境
  • 4)ゴンドワナ大陸地殻の形成
研究概要
Carbon geodynamic cycle

     Carbon is the fourth most abundant element in the solar system. It is indeed a life-saving element, but can be a life destructing element as well! Carbon geochemical cycle have implications on the origin and evolution of life, and control the Earth’s surface environment. I use carbon stable isotopes as a tool to understand the global carbon geodynamic cycle.

Isotope geochemistry

     My attempt here is to relate the processes of isotope exchange in natural systems and compare it with experiments. To understand the link between Earth’s interior and surface processes that controlled the chemical evolution of Earth, and to model the material circulation, especially in the early stages, during which the Earth was “hot” and “dynamic”.

Antarctica and supercontinent evolution

     Our knowledge on Gondwana supercontinent formation and evolution is limited because of lack of information about Antarctica. Participating in the Japanese Antarctic Research Expedition twice (JARE-46 & 51), we try to bring in to light the hidden bed rocks that can refine the models of formation of Gondwana and earlier supercontinents.

Precambrian Earth - a key link between global tectonics and environmental changes

     In this topic I try to unfold the mysterious relation between global tectonic events and environmental changes. The case studies I am pursuing now are the “Cambrian Explosion” during the Late Neoproterozoic-Cambrian (~650-500 Ma) and the “Great Oxidation Event” in the Archean-Proterozoic boundary (3.0 to 2.5 Ga).

理学を目指すあなたへ

 理学は哲学から始まり、自然観察や実験により証明する学問である.

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新潟大学
(新潟大学理学部 広報委員会)