Research articles

Gridded oceanographic data-based tridacnine oxygen isotope thermometers: advantages and problems

Hiroto Oda, Shion Tanaka, Hideko Takayanagi, Ryuji Asami, Katsuhiro Sano, Yasufumi Iryu

Nitrogen isotopic composition of amino acids reveals a variety of trophic ecology of organisms inhabiting chemosynthesis-based ecosystems

Masashi Tsuchiya, Takao Yoshida, Yoshito Chikaraishi, Nanako O Ogawa, Hidetaka Nomaki, Yoshihiro Fujiwara, Yasuhiko T Yamaguchi, Yohei Tada, Robert G Jenkins, Yoko Sasaki, Katsunori Fujikura, Naohiko Ohkouchi

Interactions of Aseismic and Seismic Slips of the Philippines Fault on Leyte Island revealed by InSAR and GNSS Time-Series

Yağızalp Okur, Yo Fukushima, Kuo-En Ching, Yogendra Sharma

Calibration of the MEGANE gamma-ray and neutron spectrometer for JAXA’s Mars Moon eXplorer (MMX) mission to Phobos

Patrick Peplowski, Samuel Fix, Morgan Burks, John Goldsten, David Lawrence, Kathryn Marcotte, Brian Schratz, Zachary Yokley, Sarah Bucior, Erik Ramseth, Jack Wilson

Elucidating the isotopic dynamics of nitrate and ammonium in the Fuji River using a Lagrangian approach: stable nitrate and fractionating ammonium

Công Thuận Nguyễn, Tomoya Iwata, Yuta Ikeda, Midori Yano, Akiko Makabe, Keisuke Koba

Methane- and hydrogen-dependent prokaryotic deep biosphere at the Suwa Basin, Japan: impacts of hydrogeological processes on subsurface prokaryotic ecology at the boundary between the North American and the Eurasian Plates

Hiroki Nishimura, Atsushi Urai, Yohei Matsui, Toshihiro Yoshimura, Miyuki Ogawara, Hiroyuki Imachi, Yosuke Miyairi, Yusuke Yokoyama, Yuichi Miyabara, Yoshio Takahashi, Yoshinori Takano

Fractionation of nitrogen isotopes in the enzymatic deamination of alanine: an insight into the quantitative evaluation of anaerobic metabolism in ecosystems

Yuko Takizawa, Hyuntae Choi, Mio Shibuya, Nayeon Park, Prarthana S. Dharampal, Shawn A. Steffan, Yoshito Chikaraishi

Miocene dextral movement on the Tanakura fault zone, Japan: strike-slip fault inversion due to arc–arc collision

Jun Hosoi, Tohru Danhara, Hideki Iwano, Takafumi Hirata

A compound-specific method for measuring the stable carbon isotopic composition of amino acids: elimination of the effect of isotopic fractionation during derivatization

Yoshito Chikaraishi, Hyuntae Choi, Nayeon Park,Yuko Takizawa

Relation between eruption at Nishinoshima and chlorophyll-a concentration at Ogasawara Islands in 2020

Rimpei Katada, Shima Ariyoshi, Hayate Ayuzawa, Koseki Saito, Joji Ishizaka, Hironobu Iwabuchi