Doklady Earth Sciences, 2026, V 529, N 2, August.

STRATIGRAPHY

The Barremian Stage in Northern Siberia and Its Evidence 
by Microfossils (Foraminifers, Ostracodes, Marine, 
and Terrestrial Palynomorphs)
Corresponding Member of the RAS B. L. Nikitenko 
and E. B. Pestchevitskaya 
p. 23  

GEOLOGY OF ORE DEPOSITS

Mathematical Models of Processes of 
Layer-Hosted Uranium Deposits
V. I. Malkovsky, Correspondent Member of the RAS V. A. Petrov, 
and A. A. Pek 
p. 24  

GEOCHEMISTRY

Origin of Zoisite-Bearing Grospydites from the 
Zagadochnaya Kimberlite Pipe: Reconstruction 
of the Deep-Water Cycle in the Lithospheric Mantle
D. S. Mikhailenko, S. Yu. Skuzovatov, A. M. Logvinova, 
N. N. Farrakhova, N. V. Gubanov, and A. V. Korsakov 
p. 25  

PETROLOGY

A Genetic Link between Dunite-Clinopyroxenite-Gabbro 
and Gabbro-Gabbronorite Complexes of the Ural 
Platinum Belt (Case Study of the Kumba Massif)
I. F. Chayka, S. Yu. Stepanov, Corresponding 
member of the RAS A.E. Izokh, R. S. Palamarchuk, 
N. I. Baykov, V. D. Shcherbakov, and S. N. Sobolev 
p. 26  

GEODYNAMICS

A New Approach to the Problem of Tectonophysical 
Stress Inversion
Yu. L. Rebetsky and I. A. Panteleev 
p. 27  

GEOPHYSICS

On the 2024 Geomagnetic Jerk Based on High-Precision 
Data from Magnetic Observatories
Corresponding Member of the RAS A. A. Soloviev, 
R. V. Sidorov, D. V. Kudin, V. V. Kabrov, 
and A. L. Kotikov 
p. 28  

STRATIGRAPHY

Early Capitanian Geospheric Event at Northeast 
Russia and Its Probable Causes
Corresponding Member of the RAS A. S. Biakov, 
Jun Shen, I. L. Vedernikov, and I. V. Brynko 
p. 29  

PETROLOGY

Magma Mixing in the Formation of Holocene 
Trachyte Pumices from the Udokan Volcanic Plateau
O. A. Andreeva, A. I. Usoltseva, I. A. Andreeva, 
Academician V. V. Yarmolyuk, V. M. Savatenkov, 
and E. V. Kovalchuk 
p. 30  

PALEONTOLOGY

Cambrian Pedogenesis—What Is Truly Known
T. V. Alekseeva, A. V. Travin, and Corresponding 
Member of the RAS A. O. Alekseev 
p. 31  

OCEANOLOGY

Paleoceanographic Conditions in the Kveithola 
Trough and Their Effect on Holocene Sedimentation
E. A. Agafonova, E. A. Novichkova, S. V. Slomnyuk, 
D. F. Budko, and M. D. Kravchishina 
p. 32  

Sedimentogenesis Kinetics on a Gently Sloping 
Shelf of the East Siberian Sea
O. V. Dudarev, A. N. Charkin, D. V. Chernykh, 
I. I. Pipko, S. P. Pugach, A. S. Ruban, A. S. Astakhov, 
A. P. Motora, V. Yu. Zobov, V. A. Krasikov, 
A. E. Leusov, A. V. Domanyuk, and Corresponding 
Member of the RAS I. P. Semiletov 
p. 33  

Rare-Earth Elements in Recent Bottom Sediments 
of the Bering Sea Northwestern Shelf
S. A. Selyutin, V. V. Sattarova, D. V. Ryabchuk, 
A. G. Grigor’ev, A. Yu. Sergeev, and E. A. Lopatnikov 
p. 34  

GEOCHEMISTRY

Pitchblende REE and Sm–Nd Isotope System 
(Case of Uranium Mineralization Dating in 
the Streltsovka Ore Field, Transbaikal)
Academician I. V. Chernyshev, Yu. O. Larionova, 
V. N. Golubev, A. P. Aleshin, and 
I. V. Rassokhina 
p. 35  

MINERALOGY

Synthesis and Crystal Structure of 
Zn-Bearing Tourmaline
T. V. Setkova, I. A. Volkova, L. A. Gorelova,
O. S. Vereshchagin, P. A. Verchenko, 
A. V. Spivak, R. Yu. Shendrik, and Academician 
D. Yu. Pushcharovsky 
p. 36  

Gold Content of Arsenopyrite of Sulfide Ores 
of the Sukhoe Deposit (South of the Russian Far East)
Academician A. I. Khanchuk, V. P. Molchanov, 
and Corresponding Member of the RAS I. V. Kemkin 
p. 37  

OCEANOLOGY

The Impact of Modern Climate Changes on the 
Microalgal Assemblages in the Surface 
Sediments of the Subpolar North Atlantic
E. A. Novichkova, T. S. Klyuvitkina, 
E. A. Agafonova, and A. A. Melnikova 
p. 38  

“Hot Spots” of Submesoscale Dynamics and Their 
Comparison with Walleye Pollock Spawning Areas 
in the Pacific Waters off the Kamchatka Peninsula
A. V. Zimin, Corresponding Member of the RAS A. A. Rodionov, 
E. I. Svergun, O. A. Atadzhanova, A. A. Konik, 
D. A. Romanenkov, E. V. Sofina, A. D. Makhovikov, 
A. I. Varkentin, O. B. Tepnin, and D. Ya. Melnik 
p. 39  

The Vertical Structure of the Temperature Field 
and the Spatial Distribution of the Dispersion 
of Temperature Fluctuations in the Global 
Ocean on Synoptic Scales
Corresponding Member of the RAS G. K. Korotaev, 
V. N. Belokopytov, and A. L. Kholod 
p. 40  

GEOLOGY

Controls on Reservoir Quality and Sweet-spot 
Prediction of the E2l3 Reservoir in the 
WZ11-6 Oilfield, Weixinan Sag, China: 
Insights from Sedimentary Diagenesis 
and Seismic Attribute Analysis
Mengmeng Liu, Rui Zhu, Deyu Zheng, Haowen Ma, 
and Jiawei Zhu 
p. 41  

Hyperion-driven Hyperspectral Mapping of 
Carbonate and Silicate Mineral: 
a Case Study from Pichavaram, Tamil Nadu
S. Sudharsan, R. Hemalatha, and S. Radha 
p. 42  

GEODYNAMICS

Deformations and Degasation in the Upper 
Part of the Sedimentary Section in the 
Western Passive Margin of the Chain 
Transform Fault (Equatorial Atlantic Region)
S. Yu. Sokolov, G. D. Agranov, 
and N. P. Chamov 
p. 43  

Horizontal Structural Heterogeneities in 
the Lower Mantle under 3D Convection 
Conditions in the Earth’s Stratified Shell
A. M. Bobrov, Academician L. I. Lobkovsky, 
and A. A. Baranov 
p. 44  

GEOECOLOGY

Analysis of Metal Elements in Water via 
Visual Minteq: Speciation and Influencing Factors
Hualin Zhang, Xinxin Mi, Rui Wang, and Wenjun Xiang 
p. 45