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Doklady Earth Sciences, 2026, V 526, N 2.
Doklady Earth Sciences, 2026, V 526, N 2, August.
GEOLOGY
U–Pb Age of Kimberlite Zircon Grains from Commercial Placers
and Placer Occurrences of Diamonds in the Northeastern
Siberian Platform
M. N. Goloburdina, S. A. Grakhanov, A. I. Dak, T. N. Zubova,
V. F. Proskurnin, N. V. Rodionov, A. V. Tarasov,
and Academician V. S. Shatsky
p. 22
U–Pb (ID TIMS) Age of Garnet from Nepheline Syenites of
the Yakokutsky Volcano-Plutonic Complex: A New Reference
Estimate of Age for Mesozoic Alkaline Magmatism
Event of the Aldan Shield
E. B. Salnikova, M. V. Stifeeva, Corresponding Member of
the RAS A. B. Kotov, N. V. Vladykin, I. A. Sotnikova,
and N. V. Alymova
p. 23
PALEOGEOGRAPHY
Isotope Stage 23 of the Palynological Record of
Lake Elgygytgyn, Polar Chukotka
A. V. Lozhkin, P. M. Anderson, Yu. A. Korzun,
and E. Yu. Nedorubova
p. 24
SEISMOLOGY
Megathrust Earthquake off the Eastern
Coast of Kamchatka on July 30, 2025
A. V. Konovalov, Yu. A. Stepnova, and
Academician A. I. Khanchuk
p. 25
OCEANOLOGYGEOLOGY
2.0–2.2 Ga Old Ruined Magmatic Arc in the
Lapland–Kola Ocean: U–Th–Pb Data for Zircon
from Metasedimentary Rocks of the Tersk
Terrane, Eastern Fennoscandia
I. A. Zhitnikova, K. G. Erofeeva,
Corresponding Member of the RAS A. V. Samsonov,
A. V. Stepanova, and O. A. Maksimov
p. 27
GEOCHEMISTRY
Niobium-Bearing Microbiota in REE–Nb Ores of the
Tomtor Deposit (Arctic Siberia, Republic of Sakha (Yakutia))
S. M. Zhmodik, E. A. Zhegallo, L. V. Zaitseva,
N. V. Grubova, E. V. Lazareva, and Academician
A. Yu. Rozanov
p. 28
PETROLOGY
The Cambrian Metavolcanic Rocks of the Upper Unit
of the Maksyutov Complex (South Urals):
Results of U–Pb (SHRIMP II) Dating of Zircon
P. M. Valizer, D. A. Zedgenizov, and N. N. Farrakhova
p. 29
Petrogenesis of Sin Quyen Paragneiss, Phan Si Pan Zone,
Northwest Vietnam and Geological Significance
Pham Minh and Nguyen Thanh Tung
p. 30
OCEANOLOGY
Annual Variability of CO2 Flux at the Carbon
Polygon in the Northeastern Black Sea
A. A. Polukhin, Yu. V. Murzakova, Yu. O. Pronina,
A. O. Varvarova, Yu. A. Khoroshilov,
E. A. Rebetskaya, V. V. Ocherednik,
V. V. Kremenetsky, and Academician S. K. Gulev
p. 31
GEOGRAPHY
The First 5700-Year History of Vegetation and Climate
of the North-Minusinsk Basin According to a
Decadal-Resolution Palynological Record
from the Sediments of Lake Shira
E. V. Bezrukova, S. A. Reshetova, A. A. Shchetnikov,
I. A. Filinov, and Corresponding Member of
the RAS K. S. Ganzey
p. 32
GEOLOGY
Early Neoproterozoic Island-Arc Volcanogenic Sedimentary
Complex of the Ulutau Terrane (Central Kazakhstan):
Substantiation of Age and Conditions of Formation
A. A. Tretyakov, N. A. Kanygina, Academician K. E. Degtyarev,
A. S. Dubenskiy, K. G. Erofeeva, and V. S. Sheshukov
p. 33
The Age of the Terminal Stage of Magmatism
in the Stanovoy Volcano-Plutonic Belt
A. M. Larin, Corresponding Member of the RAS A. B. Kotov,
E. B. Salnikova, S. D. Velikoslavinsky, V. P. Kovach,
T. M. Skovitina, A. A. Ivanova, Yu. V. Plotkina,
and N. L. Alekseev
p. 34
GEOCHEMISTRY
Background Concentrations of Trace Elements in
Recent Lake Sediments of the Murmansk Region
Z. I. Slukovskii, V. A. Dauvalter, D. B. Denisov,
P. N. Adamskaia, and A. V. Guzeva
p. 35
MINERALOGY
Bismuth Sulfosalt Mineralization in the Ores of the
Vladimirskoe Deposit (Eastern Sayan Mountains)
E. V. Airiyants, D. K. Belyanin, S. M. Zhmodik,
O. N. Kiseleva, and P. A. Roshchektaev
p. 36
PALEONTOLOGY
The Ancient Sun Bear Helarctos malayanus praemalayanus
(Ursidae, Carnivora) from the Middle Pleistocene of Vietnam
Academician A. V. Lopatin, D. O. Gimranov,
E. N. Maschenko, and Le Xuan Dac
p. 37
GEOLOGY
Age of Gabbrodolerites of Belarus “Big Dike”:
Results of Baddeleyite U–Pb (ID-TIMS)
Geochronological Studies
V. N. Burmistrov, O. A. Piskun, Correspondent Member
of the RAS A. B. Kotov, E. B. Salnikova,
Correspondent Member of the RAS A. V. Samsonov,
A. A. Tolkachikova, A. V. Stepanova,
M. P. Gurinovich, and K. A. Savko
p. 38
GEOLOGY OF ORE DEPOSITS
Sulfur Isotope Composition of Sulfides from Phoscorite
and Carbonatite of the Guli Massif
(Maimecha–Kotui Province, Russia): First Results
K. N. Malitch, N. V. Sorokhtina, Corresponding member
of RAS A. E. Izokh, A. A. Voitin, I. Yu. Badanina,
and V. V. Murzin
p. 39
MINERALOGY
Local Structure of Ba- and F-Dominant Minerals of the
Lamprophyllite Structural Family
(Based on Vibrational Spectroscopy Data)
S. M. Aksenov, N. V. Chukanov, A. A. Kompanchenko,
Yu. A. Mikhailova, G. S. Ilyin, and Corresponding
Member of the RAS I. V. Pekov
p. 40
PALEONTOLOGY
First Findings of Fossil Pollen of the Genus Decodon
in the Oligocene and Miocene in the South of Western
Siberia and Their Paleobiogeographical
Distribution Features
O. B. Kuzmina, Yu. D. Vnukovskaya, and
Corresponding Member of the RAS B. L. Nikitenko
p. 41
PHYSICS OF THE EARTH
Turbulent Thermal Convection in the Earth’s Liquid Core
V. D. Kotelkin and Academician L. Y. Aranovich
p. 42