Two generations of exsolution lamellae in pyroxene from Asuka 09545: Clues to the thermal evolution of silicates in mesosiderite

Autor: Vinciane Debaille, Seann McKibbin, Lidia Pittarello, Philippe Claeys, Akira Yamaguchi, Gang Ji, Dominique Schryvers

Publikováno v: American mineralogist
American mineralogist, 2019, American Mineralogist, 104 (11), pp.1663-1672. ⟨10.2138/am-2019-7001⟩
The American Mineralogist
The American Mineralogist, 2019, American Mineralogist, 104 (11), pp.1663-1672. ⟨10.2138/am-2019-7001⟩
The American mineralogist
The American mineralogist, 104 (11

Mesosiderite meteorites consist of a mixture of crustal basaltic or gabbroic material and metal. Their formation process is still debated due to their unexpected combination of crust and core materials, possibly derived from the same planetesimal par

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::67ed01c6e081abea864623912e2524a9
https://doi.org/10.2138/am-2019-7001

Precise initial abundance of Niobium-92 in the Solar System and implications for p-process nucleosynthesis

Autor: Makiko K. Haba, Maria Schönbächler, Maria Lugaro, Yi-Jen Lai, Jörn-Frederik Wotzlaw, Akira Yamaguchi

Publikováno v: Proceedings of the National Academy of Sciences of the United States of America, 118 (8)

Significance Niobium-92 is a short-lived p -process isotope that decays to 92 Zr with a half-life of 37 Ma. The initial 92 Nb/ 93 Nb ratio of the Solar System is crucial for utilizing the 92 Nb– 92 Zr chronometer, as it has the potential to provide

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3ba62e7c96d8a98751f5edd209a94969
https://hdl.handle.net/20.500.11850/472632

Mesosiderite formation on asteroid 4 Vesta by a hit-and-run collision

Autor: Makiko K. Haba, Yi-Jen Lai, Akira Yamaguchi, Jörn-Frederik Wotzlaw, Maria Schönbächler

Publikováno v: Nature Geoscience, 12

Collision and disruption processes of proto-planetary bodies in the early solar system are key to understanding the genesis of diverse types of main-belt asteroids. Mesosiderites are stony-iron meteorites that formed by mixing of howardite-eucrite-di

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fea13deab0d31c75dec6cefb02a98693

Trace element composition and U-Pb age of zircons from Estherville: Constraints on the timing of the metal-silicate mixing event on the mesosiderite parent body

Autor: Akira Yamaguchi, Keisuke Nagao, Makiko K. Haba, Hiroshi Hidaka, Hiroyuki Kagi

Publikováno v: Geochimica et Cosmochimica Acta. 215:76-91

Mesosiderites are a group of stony-iron meteorites, which are thought to be the result of mixing of silicates with Fe-Ni metal. In this study, we combined textural observations with geochemical and chronological studies of two zircon grains found in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2f5b4adf0a1dbda789bac225c913faa1
https://doi.org/10.1016/j.gca.2017.07.028

Siderophile elements in brecciated HED meteorites and the nature of projectile materials in HED meteorites

Autor: Naoki Shirai, Akira Yamaguchi, C. Okamoto, Mitsuru Ebihara

Publikováno v: Earth and Planetary Science Letters. 437:57-65

Petrological, mineralogical and geochemical studies were performed on five brecciated HED meteorites (ALH 76005, EET 92003, LEW 85300, LEW 87026 and GRO 95633) in order to elucidate the nature of impactors on the HED parent body. Some brecciated HED

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::726581f85652e59943c25a252c5048c2
https://doi.org/10.1016/j.epsl.2015.12.024