Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 99. (Budapest 2007)

Embey-Isztin, A. ; Dobosi, G.: Composition of olivines in the young alkali basalts and their peridotite xenoliths from the Pannonian Basin

Fig. 10. Fe/Mg ratios of cores of olivine phenocrysts from basalts vs. whole rock Fe/Mg ratios. The calculation of equilibrium olivine line was performed using the equation of ROEDER & EMSLIE (1970). Dots: phenocryst cores in equilibrium with the host basalt, Triangles: olivine cores that are more magnesian than the equilibrium value, Open circles: less magnesian olivine cores than the calculated equilibrium value. After DOBOSI (2003) Fig. 11. Frequency distribution of forsterite (Fo) molecule in olivines of mantle derived peridotite xenoliths from Pannonian alkali basaltic rocks