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Geochemical Journal
Geochemical Journal An open access journal for geochemistry
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Published for geochemistry community from Geochemical Society of Japan.

Early Release

Variations in nitrogen speciation in carbonaceous chondritic materials and their origins: Insights from partial fluorescence yield X-ray absorption spectra of nitrogen K-edge

Yoko Kebukawa, Hiroki Suga, Masanori Suzuki, Minori Ogino, Michael E. Zolensky, Yoshio Takahashi
Geochemical Journal, Early Release (Accepted: 2026/04/03)

Explosive Ontong Java eruption at the earliest phase of Oceanic Anoxic Event 1a (~120 Ma)

Hironao Matsumoto, Takashi Miyazaki, Takeshi Hanyu, Qing Chang, Bogdan S. Vaglarov, Maria Luisa G. Tejada, Junichiro Kuroda, Katsuhiko Suzuki
Geochemical Journal, Early Release (Accepted: 2026/04/19)

Direct comparison of the chemical composition of alkylated CHN compounds and mineral composition in the Murchison meteorite

Narumi Arai, Hiroshi Naraoka, Koichi Mimura, Minako Hashiguchi
Geochemical Journal, Early Release (Accepted: 2026/03/22)

Sea Surface Mercury Fluxes in the Western and Subarctic Regions of the North Pacific Ocean

Kohji Marumoto, Fumiyoshi Kondo, Kosuke Noborio, Yuya Tada, Akinori Takeuchi
Geochemical Journal, Early Release (Accepted: 2026/04/13)

REE abundances and Eu isotope ratios in GSJ and NIST feldspar reference standards (JF-1, JF-2, SRM 70a, 70b and SRM 99a) using ICP-QMS and MC-ICP-MS

Seung-Gu Lee, Yoshihiro Asahara, Hyeoncheol Kim, Goeun Kim
Geochemical Journal, Early Release (Accepted: 2026/04/03)
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