European Geosciences Union General Assembly 2015 - Garnet Classification

5 peridotite groups - Group III Group III contains: EUROPEAN GEOSCIENCES UN Gen General Assembly ◆ Garnets with low concentration of TiO2, Cr2O3, CaO and "normal" Cl-normalized REE patterns that are similar to megacrysts except for depleted in LREE; these garnets have depleted peridotite origin by [Griffin et al., 1999]; ✰ Clinopyroxenes with medium degree of REE fractionation. 100 Gar / C1 (Sun & McDonough, 1989) 10 10 III 1 0.1 0.01 TiO2 <0.3 wt.% Megacrysts Group III garnet La Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Cpx / C1 (Sun & McDonough, 1989) 100 La/Yb - 7-64 n 10 T 0,1 0,01 2015 Group III clinopyroxene La Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu CC Ο BY [email protected] 12

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