Cr-spinel records metasomatism not petrogenesis of mantle rocks

• Published in: Nature Communications
• Main Authors: Gamal El Dien, H., Arai, S., Doucet, L.S., Li, Zheng-Xiang, Kil, Y., Fougerouse, Denis, Reddy, Steven, Saxey, David, Hamdy, M.
• Format: Article in Journal/Newspaper
• Language: English
• Published: NATURE PUBLISHING GROUP 2019
• Subjects: Science & Technology; Multidisciplinary Sciences; Science & Technology - Other Topics; MID-ATLANTIC RIDGE; ANDESITIC AVACHA VOLCANO; MARIANA FORE-ARC; PERIDOTITE XENOLITHS; SERPENTINIZED PERIDOTITES; ABYSSAL PERIDOTITES; SPREADING RIDGE; EASTERN DESERT; WEDGE BENEATH; KAMCHATKA ARC; Avacha; Mid-Atlantic Ridge; Kamchatka
• Online Access: https://hdl.handle.net/20.500.11937/79360; https://doi.org/10.1038/s41467-019-13117-1

Mantle melts provide a window on processes related to global plate tectonics. The composition of chromian spinel (Cr-spinel) from mafic-ultramafic rocks has been widely used for tracing the geotectonic environments, the degree of mantle melting and the rate of mid-ocean ridge spreading. The assumpti...