Vol. 31, No. 5, 2023

Petrology

Variations in the Composition of MORB Chilled Glasses from the Mid-Atlantic Ridge, 12°–31° N: Reflection of Compositional Evolution of Parental Melts and the Influence of a Hydrothermal Component

S. A. Silantyev, A. I. Buikin, A. R. Tshovrebova, V. V. Shabykova and V. E. Bel’tenev p. 475 abstract

Lower Talnakh Type Intrusions of the Norilsk Ore Region

S. F. Sluzhenikin, K. N. Malitch, M. A. Yudovskaya, D. M. Turovtsev, T. N. Antsiferova, S. K. Mikhalev, I. Yu. Badanina and N. G. Soloshenko p. 492 abstract

Early Paleozoic Tectonothermal Evolution of the Khan-Khukhay Metamorphic Complex, Northern Mongolia

O. P. Polyansky, A. Yu. Selyatitskii, S. V. Zinoviev and A. V. Babichev p. 519 abstract

Formation Stages and Conditions of Carbonate–Silicate Veins and Their Wall-Rock Aureoles in the Early Proterozoic Complexes of the Belomorian Mobile Belt, Northern Karelia

I. S. Volkov and V. M. Kozlovskii p. 538 abstract

Updated COMAGMAT-5: Modeling the Effects of Sulfide Precipitation in Parallel to the Crystallization of Alumino-Chromian Spinel

A. A. Ariskin, K. A. Bychkov, G. S. Nikolaev and G. S. Barmina p. 558 abstract

Microprobe Analysis of Titanium in Zircon: an Estimation of Secondary Fluorescence

A. A. Borisov, S. E. Borisovskiy and A. N. Koshlyakova p. 576 abstract

Contents

Petrology