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Progress in Earth and Planetary Science
Fig. 8 | Progress in Earth and Planetary Science

Fig. 8

From: Formation of lower fast-spread oceanic crust: a structural and geochemical study of troctolites in the Hess Deep Rift (East Pacific Rise)

Fig. 8

Chondrite-normalized REE patterns of olivine (a), plagioclase (b), clinopyroxene (c, d), and orthopyroxene (e) in the troctolites from IODP Site U1415. Each data in a, b represents the mean value of one sample along with measured variability (1 standard deviation), whereas all data are presented in c, d, e. The compositional fields in a, b, c are of troctolites from the Atlantis Massif from Drouin et al. (2009). The orthopyroxene compositions of the Oman harzburgites in e are from Akizawa et al. (2016), (see Additional file 1: Table S11 for compiled data set), and those of the Hess Deep harzburgites are from Grambling et al. (2022). The thick gray lines represent average detection limits of the analyses. Chondrite values are from Sun and McDonough (1989). Abbreviations are the same as in Fig. 6

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