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Earth, Planets and Space
Fig. 3 | Earth, Planets and Space

Fig. 3

From: Seafloor hydrothermal alteration affecting magnetic properties of abyssal basaltic rocks: insights from back-arc lavas of the Okinawa Trough

Fig. 3

Photomicrographs of the studied fresh volcanic rock samples from the Irabu knolls of the Okinawa Trough; 6K#562R1 and 6K#569R4-2. A Plagioclase (Pl) glomeroporphyritic and intergranular groundmass texture in the 6K#562R1. Under transmitted crossed polarized light (CPL). B Titanomagnetite (mt) and pyrite (FeS) grains in the 6K#562R1. Under reflected plane-polarized light (PPL). C Plagioclase (Pl), orthopyroxene (Opx), amphibole (amp), and clinopyroxene (Cpx) glomeroporphyritic and intersertal groundmass texture in the 6K#569R4-2. Under transmitted CPL. D Titanomagnetite (mt) grains in the 6K#569R4-2. Under reflected PPL

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