Petrology, 2026, V 34, N 5, October.

Outstanding Russian Geologist, 
90th Anniversary of the Birth of V.I. Kovalenko
p. 529  

Formation of the Zashikhinsky Rare-Metal Deposit, 
Russia, by the Filtration Differentiation of 
Alkali Granite Melt
A. V. Nikiforov, D. A. Lykhin, N. V. Alymova, 
O. A. Andreeva, A. Yu. Bychkov, and 
A. A. Vorontsov 
p. 531  

Age, Composition, and Formation Mechanisms of the 
Bural Alkaline Granitoid Complex, Eastern Sayan 
Rare-Metal Province, with Reference to the 
Problem of Rare-Metal Magma Generation
V. V. Yarmolyuk, D. A. Lykhin, A. M. Kozlovsky, 
and A. V. Nikiforov 
p. 557  

Composition and Evolution of Topaz Rhyolite 
Magmas of the Spor Mountain Formation, USA: 
A Study of Melt Inclusions in Minerals
I. A. Andreeva, D. A. Lykhin, S. E. Borisovskiy, 
and E. V. Kovalchuk 
p. 573  

Influence of Crystal Fractionation and Fluid Regime 
Change on the Evolution of Magmas of the Wangtian’e 
Bimodal Volcanic Association (Northeastern China)
O. A. Andreeva, V. M. Savatenkov, I. A. Andreeva, 
A. I. Usoltseva, J.-Q. Ji, and J. Zhou 
p. 589  

Composition and Sources of Volcanic Rocks of the 
Dariganga Plateau: An Assessment of the Formation 
Mechanisms of the Late Cenozoic Intraplate 
Volcanic Province of Central and East Asia
V. M. Savatenkov, V. V. Yarmolyuk, A. M. Kozlovsky, 
and L. V. Shpakovich 
p. 608  

Nd Isotopic Composition of the Continental Crustal 
Rocks and Its Relations with Geological Structures 
of the Southern Surroundings of the 
Mongol–Okhotsk Foldbelt
V. V. Yarmolyuk, A. M. Kozlovsky, D. V. Kovalenko, 
and V. M. Savatenkov 
p. 630