Geological Society of London
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Diamondiferous lamproites of Ingashi field, Siberian craton

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posted on 2021-08-24, 13:37 authored by S. I. Kostrovitsky, D. A. Yakovlev, I. S. Sharygin, D. P. Gladkochub, T. V. Donskaya, I. G. Tretiakova, A. M. Dymshits, A. P. Sekerin, V. G. Malkovets
Supplementary Fig. S2. Cr2O3 (wt.%) vs. CaO (wt.%) plot for garnets from dyke 1 by new data (a) and after Egorov et al. 2005 (b). Composition fields G0–G12 separated by solid lines after Grutter et al. 2004: G0 – unclassified garnets; G1 – pyrope garnet megacrysts; G3 – eclogitic garnet; G4–G5 – pyroxenitic and websteritic low-Cr (G4) and high-Cr (G5) garnets; G9 = lherzolitic garnet; G10 = harzburgitic garnet; G12 = wehrlitic garnet. Garnet compositional fields separated by dashed lines correspond to different mantle paragenesis (after Sobolev et al. 1973): 1 – diamond dunite-harzburgitic, 2 – dunite-harzburgitic, 3 – lherzolitic, and 4 – vherlitic parageneses.