Early armalcolite saturation recorded by Ti-rich chromian spinel in lower crustal gabbros from Hess Deep, East Pacific Rise (IODP Exp. 345, Hole U1415P)

Akira Chiba

Presentation information

[E] Oral

S (Solid Earth Sciences ) » S-CG Complex & General

[S-CG60] Hard-Rock Drilling Science: Continental and Deep-Sea Drilling, and Ophiolite

Wed. May 27, 2026 9:00 AM - 10:30 AM 301A (International Conference Hall, Makuhari Messe)

Chairperson:Harigane Yumiko(Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology (AIST)), Hoshide Takashi(Faculty of International Resource Sciences, Akita University), Michibayashi Katsuyoshi(Department of Earth and Planetary Sciences, GSES , Nagoya University), Okazaki Keishi(Earth and Planetary Systems Science Program, Hiroshima University)

9:45 AM - 10:00 AM

[SCG60-04] Early armalcolite saturation recorded by Ti-rich chromian spinel in lower crustal gabbros from Hess Deep, East Pacific Rise (IODP Exp. 345, Hole U1415P)

*Akira Chiba¹, Takashi Hoshide¹, Keita Kondo² (1. Graduate School of International Resource Science, Akita University, 2. Kitai Sekkei Co., Ltd.)

Keywords:armalcolite, magnesian ilmenite, mid-ocean ridge, lower oceanic crust, Hess Deep, IODP Exp. 345

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