Chen, Mi-Mi; Tian, Wei; Suzuki, K; Tejada, M.-L.-G.; Liu, Feng-Lin; Senda, Ryoko; Wei, C; Chen, Bin; Chu, Z.
Mantle-derived spinel peridotite and spinel plagioclase pyroxenite xenoliths hosted in Cenozoic alkali basalts (20Ma) are found in the Xikeer area, western Tarim Block, NW China. Based on petrographic and geochemical characteristics, the peridotite xenoliths are divided into three groups. Group 1 peridotite xenoliths have experienced high degree melt extraction (~17% fractional melting) and weak, incipient metasomatism. Group 2 and 3 peridotite xenoliths have undergone extensive silicate melt...[Show more]
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