Petrology, 2025, V 33, N 1.

Late Pleistocene Mafic Magmatism and Its Relation to Large
Caldera-Forming Eruptions on Iturup Island: 
An Example of Klumba Volcano, Kuril Islands
T. Yu. Timina, S. Z. Smirnov, D. V. Kuzmin, A. A. Kotov, 
A. V. Rybin, V. A. Danilovsky, and A. E. Izokh 
p. 1  

Carbonation of Serpentinites of the Mid-Atlantic Ridge: 
2. Evolution of Chemical and Isotopic (δ18O, δ13С, Rb, Sr, Sm, Nd) 
Compositions during Exhumation of Abyssal Peridotites
E. A. Krasnova, S. A. Silantyev, V. V. Shabykova, 
and A. S. Gryaznova 
p. 23  

Petrogenesis and Sources for Rocks of the Rare-Metal 
Alkaline Burpalа Intrusion (Northern Baikal Region)
A. G. Doroshkevich, V. M. Savatenkov, A. V. Malyutina, 
I. A. Izbrodin, I. R. Prokopiev, A. E. Starikova, 
and T. A. Radomskaya 
p. 40  

Origin of the Earth’s First Felsic Crust: A Hydrogen Perspective?
L. Y. Aranovich, E. S. Persikov, P. G. Bukhtiyarov, 
A. N. Koshlyakova, and N. M. Lebedeva 
p. 62  

Possibility of Discriminating between Postcollisional and 
Intraplate A-Type Granitoids Based on Geochemical Data
S. D. Velikoslavinskii, A. B. Kotov, E. V. Tolmacheva, 
D. P. Krylov, and T. M. Skovitina 
p. 72