Long-lasting thermal activity on the brachinite parent body revealed by mineralogy, REE chemistry, and U–Pb dating of Ca-phosphates in Northwest Africa 10932OPEN ACCESS 

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Kengo T.M. Ito, Sota Niki, Hikaru Hasegawa, Kanoko Kurihara, Tokiyuki Morohoshi, Takashi Mikouchi, Takafumi Hirata, Martin Bizzarro, Tsuyoshi Iizuka Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 28 May 2025 LINK + PDF (OPEN…

A reconstruction of the H2O and F contents of the Erg Cech 002 parent body

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Liam D. Peterson, Megan E. Newcombe, Conel M.O’D. Alexander, Jianhua Wang, Sune G. Nielsen Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 17 April 2025 LINK “Erg Cech 002 (EC 002) is an andesitic…

K-Ca dating and Ca isotope composition of the oldest Solar System lava, Erg Chech 002OPEN ACCESS 

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W. Dai, F. Moynier, L. Fang, J. Siebert Geochemical Perspectives Letters v24 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Erg Chech 002 (EC 002) is an andesitic meteorite, which is the oldest lava in the Solar System…

Gaia search for early-formed andesitic asteroidal crustsOPEN ACCESS 

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Marjorie Galinier, Marco Delbo, Chrysa Avdellidou, Laurent Galluccio, Yves Marrocchi Astronomy & Astrophysics manuscript (January 3, 2023) PDF (OPEN ACCESS) “Context. Andesitic meteorites are among the oldest achondrites known to date. They record volcanic events…

Structure of differentiated planetesimals: A chondritic fridge on top of a magma ocean

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Cyril Sturtz, Angela Limare, Marc Chaussidon, Édouard Kaminski IcarusIn Press, Journal Pre-proof, Available online 28 May 2022 LINK “Highlights • We study the formation and the thermal evolution of planetesimals that accreted undifferentiated material during…

A 4,565-My-old andesite from an extinct chondritic protoplanetOPEN ACCESS 

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Jean-Alix Barrat, Marc Chaussidon, Akira Yamaguchi, Pierre Beck, Johan Villeneuve, David J. Byrne, Michael W. Broadley, and Bernard Marty PNAS March 16, 2021 118 (11) LINK Update (6 May 2021): PDF (OPEN ACCESS) “The age…

Petrology and Geochemistry of Erg Chech 002, the Oldest Andesite in the Solar System

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A. Yamaguchi, Barrat J. A., Chaussidon M., Beck P., Villeneuvee J. et al. 52nd Lunar and Planetary Science Conference (2021), Abstract #1892 PDF “We present the petrology and geochemistry of Erg Chech 002, and discuss…

26Al Chronology of Erg Chech 002, the Oldest Andesite in the Solar System

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M. Chaussidon, Barrat J. A., Yamaguchi A., Beck P., Villeneuve J. et al. 52nd Lunar and Planetary Science Conference (2021), Abstract #2222 PDF “26Al chronology shows that the Erg Chech 002 meteorite of andesitic composition…

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