Vol. 29, No. 6, 2021

Petrology

Sulfur Isotope Composition of Olivine Gabbronorites from a Mineralized Apophysis of the Yoko-Dovyren Intrusion, Northern Transbaikalia, Russia

A. A. Ariskin, I. V. Pshenitsyn, E. O. Dubinina, S. A. Kossova and S. N. Sobolev p. 597 abstract

Dispersed Carbon in Basalts of the Altered Oceanic Crust: Isotope Composition and Mechanisms of Formation

V. B. Polyakov and S. N. Shilobreeva p. 614 abstract

The Pliocene Post-Collisional Volcanism of Central Armenia: Isotope-Geochronology and Geochemical Evolution of Magmatic Melts

V. A. Lebedev, Yu. V. Goltsman, T. I. Oleinikova, A. V. Parfenov and A. I. Yakushev p. 627 abstract

The Sources and Evolution of Fluid Phases of Guli Massif Carbonatites (West Siberia): Summarizing of Noble Gases, N₂, CO₂, H₂O Stepwise Crushing Data

A. I. Buikin, J. Hopp, A. B. Verchovsky, L. N. Kogarko and M. Trieloff p. 657 abstract

U-Pb (ID-TIMS) Geochronological Studies of High-Uranium Metamict Zircons: New Opportunities of Familiar Approaches

A. A. Ivanova, E. B. Salnikova, A. B. Kotov, Yu. V. Plotkina, E. V. Tolmacheva, L. F. Syritso and V. N. Bocharov p. 676 abstract

β-Factors of Titanite and Oxygen Isotope Fractionation in the Titanite–Ilmenite–Rutile System

D. P. Krylov p. 686 abstract

Interaction of Fe₃C with Hydrogen: On the Compatibility of Carbon with Hydrogen in Metallic Iron

L. Y. Aranovich, E. S. Persikov, P. G. Bukhtiyarov and G. S. Bondarenko p. 695 abstract