Doklady Earth Sciences, 2026, V 526, N 1, July.

MINERALOGY

Evolution of the Composition of Mantle Micas 
in the Presence of the Oceanic Crustal Material
A. A. Bendeliani, E. S. Gornova, A. V. Bobrov, 
and Corresponding Member of the RAS 
N. N. Eremin 
p. 1  

PALEONTOLOGY

Ancestral Northern Red-Backed Vole from the 
Early Pleistocene of Western Siberia
A. V. Borodin and A. S. Tesakov 
p. 2  

OCEANOLOGY

Experimental Study of Spatial Structure Formation 
in Scalar-Vector Sound Fields Generated by 
a Towed Source in Shallow Sea
V. V. Bezotvetnykh, E. A. Voitenko, A. A. Golov, 
S. I. Kamenev, and Yu. N. Morgunov 
p. 3  

PHYSICS OF ATMOSPHERE  AND HYDROSPHERE

Evolution of the Stratospheric Polar Vortex 
Activity over 85 Years
Corresponding Member of the RAS V. V. Zuev 
and E. S. Savelieva 
p. 4  

CLIMATE PROCESSES

Fertility Decrease and Rising Volcanic 
Activity Can Stop Global Warming
Academician V. V. Klimenko, A. G. Tereshin, 
and O. V. Mikushina 
p. 5  

GEOLOGY

Structure and Evolution of the Davis and 
Obruchev Archaean Terranes Based on the 
First Comprehensive Isotopic-Geochronological 
Studies of the Denman Glacier Region 
(East Antarctica)
V. A. Maslov, Academician V. D. Kaminsky, 
V. Yu. Vodovozov, and D. M. Vorobiev 
p. 6  

GEOLOGY OF ORE DEPOSITS

Reconstruction of the Age of Provenances for 
the Rare Metal-Titanium Placers of the Upper 
Neogene Ergeninskaya Formation (Karpinsky Ridge, 
Epi-Hercynian Scythian Platform)
A. V. Chefranova, V. P. Kovach, 
Corresponding Member of the RAS A. V. Volkov, 
A. V. Lalomov, V. A. Lavrishchev, R. M. Chefranov, 
Y. V. Plotkina, and B. M. Gorohovskiy 
p. 7  

PETROLOGY

Early Permian Gabbro-granite Magmatism in 
Southern Rudny Altai: First U–Pb 
Geochronological and Geochemical Data
S. V. Khromykh, E. A. Il’icheva, D. V. Semenova, 
M. D. Tsareva, Corresponding member of the RAS N. N. Kruk,
P. D. Kotler, A. S. Volosov, and A. V. Naryzhnova 
p. 8  

GEOPHYSICS

Structure and Geomechanical Properties of the 
Earth’s Crust and Upper Mantle of the 
Foothill Part of North Ossetia
B. A. Dzeboev, B. V. Dzeranov, I. M. Aleshin, 
A. G. Goev, Corresponding Member of the RAS 
V. N. Tatarinov, and S. I. Oreshin 
p. 9  

SEISMOLOGY

Seismogenic-Induced Softening of the Earth Crust
Academician V. G. Bondur, M. B. Gokhberg, 
I. A. Garagash, and D. A. Alekseev 
p. 10  

GEOLOGY

Early Cambrian U/Pb (SIMS) Zircon Age from 
Carbonate-Silicate Apovulcanogenic Metasomatites 
in the Chulaksaj 
Formation Stratotype Section in the 
East of the South Urals
A. V. Ryazantsev 
p. 11  

A Fragment of the Cambrian Residual Basin of the 
Paleo-Asian Ocean in the Southern Folded 
Framing of the Siberian Platform
S. I. Shkolnik and E. F. Letnikova 
p. 12  

The first Data on the Age of Xenotime from 
Argillites of the Segozero Structure 
(Karelian Craton): Results of U–Pb (ID TIMS) 
Geochronological Studies
M. A. Sukhanova, E. B. Salnikova, 
Corresponding Member of the RAS A. V. Samsonov, 
A. V. Stepanova, Corresponding Member of the RAS 
A. B. Kotov, O. M. Silaeva, K. G. Erofeeva, 
A. V. Kervinen, V. V. Ustinova, O. A. Maksimov, 
and K. N. Bessmertnyi 
p. 13  

STRATIGRAPHY

The First Chemostratigraphic Curve of δ13Сorg for the 
Upper Permian of Verkhoyanie, Northeast Russia, 
and Its Correlation with the Shangsi Section, South China
Corresponding Member of the RAS A. S. Biakov, 
R. V. Kutygin, B. I. Gareev, I. L. Vedernikov, 
and S. S. Burnatny 
p. 14  

MINERALOGY

Nanostructural Features of Non-Stoichiometric 
Bornite (Volkovskoye Deposit, Middle Urals)
A. I. Morokhin, I. S. Pavlov, T. G. Shumilova, 
and A. L. Vasiliev 
p. 15  

GEOLOGY

The First Data on the Age (U–Th–Pb SIMS) and Composition
of Rocks in the Serpentinite Melanges of the 
Polyarninsky Uplift of the South Anyui Suture 
(Northeast Asia)
A. V. Ganelin and Corresponding Member of the RAS 
S. D. Sokolov 
p. 16  

GEOLOGY OF ORE DEPOSITS

Early Silurian Age of Skarns of the Ichkeulmes 
Cu–Au Deposit (Northern Kazakhstan): Results
of U–Pb (ID-TIMS) Geochronological Studies of Garnet
A. A. Tretyakov, Academician K. E. Degtyarev,
M. V. Stifeeva, E. B. Salnikova, S. G. Chepchev, 
Corresponding Member of the RAS A. B. Kotov, 
Yu. V. Plotkin, K. N. Shatagin, and N. K. Kasenova 
p. 17  

SEISMOLOGY

Reevaluating the Magnitude of the 1785 Yumen 
Earthquake through Multidisciplinary Approaches: 
a Case Study in Western Gansu, China
Taiming He, Jian Wang, Xiao Zhang, and Jie Yin 
p. 18  

OCEANOLOGY

Turbidite Channels in the Distal Bengal Fan, 
the Central Indian Ocean Basin
O. V. Levchenko and Y. G. Marinova 
p. 19  

GEOECOLOGY

Preservation of Structural and Dynamic Properties 
of Natural Water during Its Conditioning
Corresponding Member of the RAS V. I. Danilov-Danilyan, 
O. M. Rosenthal, and A. G. Sambursky 
p. 20  

Seasonal Dynamics of Phytoplankton Photosynthetic 
Activity Parameters in the Baltic Sea
K. A. Borovkova, S. A. Mosharov, and 
Academician S. K. Gulev 
p. 21