Pyrrhotite-driven early-stage terrestrial alteration in Ryugu grainsOPEN ACCESS
Masaaki Miyahara, Takaaki Noguchi, Toru Matsumoto, Naotaka Tomioka, Tohru Araki, Akira Miyake, Yohei Igami, Yusuke Seto & Akira Yamaguchi Nature Communications, Published: 29 May 2026 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Samples returned from the carbonaceous…
Pyrrhotites in asteroid 162173 Ryugu: Records of the initial changes on their surfaces with aqueous alterationOPEN ACCESS
Hiroharu Yui, Shu-hei Urashima, Morihiko Onose, Mayu Morita, Shintaro Komatani, Izumi Nakai, Yoshinari Abe, Yasuko Terada, Hisashi Homma, Kazuko Motomura, Kiyohiro Ichida, Tetsuya Yokoyama, Kazuhide Nagashima, Jérôme Aléon, Conel M. O’D. Alexander, Sachiko Amari, Yuri…
Four-dimensional-STEM analysis of the phyllosilicate-rich matrix of Ryugu samplesOPEN ACCESS
Bahae-eddine Mouloud, Damien Jacob, Francisco de la Peña, Maya Marinova, Corentin Le Guillou, Jean-Christophe Viennet, Sylvain Laforet, Hugues Leroux, Adrien Teurtrie, Takaaki Noguchi, Toru Matsumoto, Akira Miyake, Yohei Igami, Mitsutaka Haruta, Hikaru Saito, Satoshi Hata,…
Heterogeneous histories of Ni-bearing pyrrhotite and pentlandite grains in the CI chondrites Orgueil and Alais.
Berger, E. L., Lauretta, D. S., Zega, T. J. and Keller, L. P. Meteoritics & Planetary Science. doi: 10.1111/maps.12721 LINK “Compositional and structural analyses of CI chondrite iron–nickel sulfide grains reveal heterogeneity both across and…



































