Contents

Doklady Earth Sciences

Vol. 529, No. 2, 2026

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  abstract

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  abstract

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  abstract

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  abstract

GEODYNAMICS

A New Approach to the Problem of Tectonophysical Stress Inversion

Yu. L. Rebetsky and I. A. Panteleev p. 27  abstract

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  abstract

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  abstract

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  abstract

PALEONTOLOGY

Cambrian Pedogenesis—What Is Truly Known

T. V. Alekseeva, A. V. Travin, and Corresponding Member of the RAS A. O. Alekseev p. 31  abstract

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  abstract

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  abstract

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  abstract

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  abstract

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  abstract

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  abstract

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  abstract

“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  abstract

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  abstract

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  abstract

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  abstract

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  abstract

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  abstract

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  abstract