Minor and Rare Earth Element Geochemistry of K-Rich Silica-Undersaturated Igneous Rocks - Origin of Potassium-rich Silica-deficient Igneous Rocks - page 213

Fig. 5.4 Rare Earth element and primitive mantle-normalized multi-element diagrams for the
ultrapotassic intrusive suite from the Damodar valley (a - f) and Andhra Pradesh (g - h.)
Normalizing factors are from Sun and Mc Donough (1989; after Jia et al. 2003)

melilite-nepheline leucitite, the content of Ni (30 40 ppm), Co (40 70 ppm) and Cr

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(1 cantly lower.

The 87 Sr/ 86 Sr ratio of mafurite (0.7050), leucitite (0.7058), kivite (0.7067), ka-
tungite (0.7047), K-rich basanite (0.7043) and absarokite (0.7076) is high. The ratio
is comparable to K-rich rocks of Leucite Hills and Navajo Hopi volcanic provinces

70 ppm) is signi

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