2021 Annual Meeting of Japan Association of Mineralogical Sciences (JAMS)

Presentation information

Oral presentation

R6: Plutonic rocks, volcanic rocks and subduction factory

Thu. Sep 16, 2021 9:30 AM - 12:00 PM Zoom Session 2

Chairperson:Tatsuhiko Kawamoto(Shizuoka University), Atsushi Kamei(Shimane University), Masao 伴 Ban(Yamagata University)

11:15 AM - 11:30 AM

[R6-07] Intrasegment variation of oceanic crustal structure of the Oman Ophiolite

*Soma Okada1, Susumu Umino2, Yuki Kusano3, Sumio Miyashita4, Yoshiko Adachi5 (1. Kanazawa Uni. Sci., 2. Kanazawa Uni., 3. AIST, 4. Hokkaido Sogo Chishitsu, 5. CRIEPI)

Keywords:Oman Ophiolite, Paleooceanic ridge axis segment, Sheeted dike complex, DEVAL

Reconstruction of paleoceanic ridge axis orientation and whole-rock chemical composition analysis of the sheeted dike complex of the paleooceanic ridge axis segment between Wadi Fizh and Wadi Sadam in the northern Oman ophiolite. The reconstruction of the paleoceanic ridge axis orientation suggests that the southern half of the segment is divided into two parts, which is DEVAL.