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.
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.
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).
Atsushi Nakao, Shiori Uno, Junta Yanai, Hideo Kubotera, Ryoji Tanaka, Robert A. Root, Takashi Kosaki. Distance-dependence from volcano for Asian dust inclusions in Andosols: A key to control soil ability to retain radiocesium, Geoderma (2021).
Tai Truong Nguyen, Hiroshi Kitagawa, Ivan Pineda-Velasco. Eizo Nakamura. Feedback of slab distortion on volcanic arc evolution: geochemical perspective from late Cenozoic volcanism in SW Japan, Journal of Geophysical Research: Solid Earth (2020).
Jan. 26, 10:00 AM in 3F Seminar Room
Seminar by Zhang Wei
Jan. 19, 10:00 AM in 3F Seminar Room
Seminar by Nurcan Küçükarslan
Dec. 22, 10:00 AM 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
Oct. 27, 10:00 AM in 3F Seminar Room
Seminar by Maya-Liliana Avramescu