Recurrent planetesimal formation in an outer part of the early solar systemOPEN ACCESS
Wladimir Neumann, Ning Ma, Audrey Bouvier & Mario Trieloff Scientific Reports, Volume 14, article number 14017, Published: 01 July 2024 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “The formation of planets in our solar system encompassed various…
Unraveling the Cr Isotopes of Ryugu: An Accurate Aqueous Alteration Age and the Least Thermally Processed Solar System MaterialOPEN ACCESS
Ryoji Tanaka, Dilan M. Ratnayake, Tsutomu Ota, Noah Miklusicak, Tak Kunihiro, Christian Potiszil, Chie Sakaguchi, Katsura Kobayashi, Hiroshi Kitagawa, Masahiro Yamanaka, Masanao Abe, Akiko Miyazaki, Aiko Nakato, Satoru Nakazawa, Masahiro Nishimura, Tatsuaki Okada, Takanao Saiki,…
Degassing of early-formed planetesimals restricted water delivery to Earth
M. E. Newcombe, S. G. Nielsen, L. D. Peterson, J. Wang, C. M. O’D. Alexander, A. R. Sarafian, K. Shimizu, L. R. Nittler & A. J. Irving NaturePublished: 15 March 2023 LINK “The timing of…
Temporally distributed parent body accretion in the C reservoir of the solar systemOPEN ACCESS
Wladimir Neumann, Ning Ma, Audrey Bouvier, Mario Trieloff PDF (OPEN ACCESS) “Accretion processes in protoplanetary disks produce a diversity of small bodies that played a crucial role in multiple reshuffling events throughout the solar system…
Evidence for Enrichment of Niobium-92 in the Outer Protosolar DiskOPEN ACCESS
Yuki Hibiya, Tsuyoshi Iizuka, Hatsuki Enomoto, and Takehito Hayakawa The Astrophysical Journal Letters, Volume 942, Number 1 LINK (OPEN ACCESS)PDF (OPEN ACCESS) The short-lived radionuclide, niobium-92 (92Nb), has been used to estimate the site of…
Statistical Chronometry: Anchors Away!
Desch S. J., Dunlap D. R., Williams C. D., Torrano Z. A. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6231) PDF We fit 4 parameters (CAI Pb-Pb ages; solar system initial 53Mn/55Mn,…
The promise and potential pitfalls of acid leaching for Pb-Pb chronology
Kengo T.M. Ito, Yuki Hibiya, Yoshitaka Homma, Takashi Mikouchi, Tsuyoshi Iizuka Chemical Geology Volume 525, 20 October 2019, Pages 343-355 LINK “Highlights • We studied the mechanism by which acid leaching separates radiogenic and non-radiogenic…
Ferrous oxide-rich asteroid achondrites
James M.D. Day, Christopher A. Corder, Nelly Assayag, Pierre Cartigny Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 19 April 2019 LINK “Ferrous oxide (FeO)-rich asteroid achondrites can be defined as asteroid-derived samples…
Carbonaceous Achondrites Northwest Africa 6704/6693: Milestones for Early Solar System Chronology and Genealogy
Matthew E. Sanborn, Josh Wimpenny, Curtis D. Williams, Akane Yamakawa, Yuri Amelin, Anthony J.Irving, Qing-Zhu Yin Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 14 October 2018 LINK “Northwest Africa (NWA) 6704/6693 are…
U-Pb, Rb-Sr and Ar-Ar systematics of the ungrouped achondrites Northwest Africa 6704 and Northwest Africa 6693
Yuri Amelin, Piers Koefoed, Tsuyoshi Iizuka, Vera Assis Fernandes, Magdalena H.Huyskens, Qing-Zhu Yin, Anthony J. Irving Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 27 September 2018 LINK “We report U-Pb, 87Rb-87Sr, 40Ar-39Ar…
Benchmarking the Pb-Pb Age of Ungrouped Achondrite NWA 6704 for Project Milestones
M. H. Huyskens, Q.-Z. Yin, Y. Amelin 48th Lunar and Planetary Science Conference (2017), Abstract #2260 PDF
The Origin and Chemical Evolution of the Parent Body to Northwest Africa 6704 Primitive Achondrite
Y. Hibiya, G. J. Archer, R. Tanaka, T. Iizuka, K. Ozawa, R. J. Walker, A. Yamaguchi, A. J. Irving 48th Lunar and Planetary Science Conference (2017), Abstract #1317 PDF
Highly Siderophile Element and 187Re-187Os Isotopic Systematics of Ungrouped Achondrite Northwest Africa 6704
G. J. Archer, R. J. Walker, A. J. Irving, Y. Amelin 47th Lunar and Planetary Science Conference (2016), Abstract #2578 PDF
Petrology and Oxygen Isotopic Composition of Orthopyroxenitic Achondrite Northwest Africa 8777 and Sodic Ultramafic Achondrite Northwest Africa 10132
Irving A. J., Kuehner S. M., Ziegler K. 78th Annual Meeting of the Meteoritical Society (2015) Berkeley, USA July 27-31 2015 PDF (abstract)
U-Pb Age of Ungrouped Achondrite NWA 10132
Koefoed P., Amelin Y., Irving A. J. 78th Annual Meeting of the Meteoritical Society (2015) Berkeley, USA July 27-31 2015 PDF (abstract)
A mineralogical and chemical study of primitive achondrite NWA 6704 and its potential use for calibration of extinct radionuclide chronometers
Yuki Hibiya (The University of Tokyo) , Tsuyoshi Iizuka (The University of Tokyo) , Akira Yamaguchi (NIPR) PDF LINK
