Our goal is to describe atoms that represent element distribution of the Solar system that are continuously evolving from the beginning to the future. To understand the Solar system with spatial scale 1013 m, we analyze planetary materials that are from different origin with different processes, and determine element and isotope compositions with spatial resolution down to 10-9 m.

Planetary materials besides terrestrial ones are the rolling stones that are sampled with locality unknown. To fill the important missing information, we developed a protocol that is to determine multiple-elements, multiple-isotopes, and multiple-phases. We referred the approach to be 'comprehensive' and construct an analytical system that let us do so. The system acts as a gigantic machine with numerous instruments glued by analytical methods and disciplined people. The disciplines and samples would be taken over to the next generation to sustain our science.

We work as a team and prefer arguments scientifically.

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LATEST NEWS


Elements for the Origin of Life on Land: A Deep-Time Perspective from the Pilbara Craton of Western Australia.

01/21/2021

Water is one of the prerequisites for life to appear on a planet, and deep-sea hydrothermal vents have been a preferred setting for the origin of life. However, its propensity to dilute critical prebiotic elements and to retard polymerization of organic molecules suggests that a terrestrial hot spring field with the capacity for wet-dry cycling and element concentration represents a more likely candidate.

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深海底の熱水噴出孔から化学進化の痕跡が見いだされて以来、海底熱水系は生命誕生に適した場所であると考えられてきた。しかしながら、前生物的化学進化に必要な元素を濃縮させたり、アミノ酸を重合させてタンパク質を作ったりと、生命の誕生につながる化学反応を促進するには、一時的にでも、水を取り除く必要がある。一方、間欠泉を伴う陸域の地熱地帯では、乾燥・湿潤状態の繰り返しによる元素濃縮や有機物重合が期待される。つまり、常に水が存在する海底よりも、陸上の温泉地帯の方が、生命の誕生にとって好都合なのである。.

... 続きを読む

LATEST PUBLICATIONS

2021


Hongda Hao, Ian H. Campbell, David R. Cooke, Eizo Nakamura, Chie Sakaguchi, Geochronology, Petrogenesis and Oxidation State of the Northparkes Igneous Suite, New South Wales, Australia: Implications for Magma Fertility, Economic Geology, (2021).

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Tara Djokic, Martin J. Van Kranendonk, Kathleen A. Campbell, Jeff R. Havig, Malcolm R. Walter, Diego M. Guido. A Reconstructed Subaerial Hot Spring Field in the ∼3.5 Billion-Year-Old Dresser Formation, North Pole Dome, Pilbara Craton, Western Australia, Astrobiology (2021).

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Martin J. Van Kranendonk, Raphael Baumgartner, Tara Djokic, Tsutomu Ota, Luke Steller, Ulf Garbe, Eizo Nakamura. Elements for the Origin of Life on Land: A Deep-Time Perspective from the Pilbara Craton of Western Australia, Astrobiology (2021).

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SEMINAR, SYMPOSIUM & WORKSHOP

2020-2021

Mar. 16, 10:00 AM in 3F Seminar Room
Seminar by Nurcan Kucukarslan


Feb. 9, 10:00 AM in 3F Seminar Room
Seminar by Dr. Yunchao Shu


Feb. 2, 10:00 AM in 3F Seminar Room
Seminar by Zhang Wei


Jan. 12, 4:00 PM in 3F Seminar Room
Seminar by Dilan Madusanka Ratnayake


Dec. 8, 10:00 AM in 3F Seminar Room
Seminar by Rahar Kumar


Nov. 19, 10:00 AM in 3F Seminar Room
Seminar by Havishk Tripathi


Nov. 10, 10:00 AM in 3F Seminar Room
Seminar by Tulibako Tulibonwya



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