Contents

Doklady Earth Sciences

Vol. 480, No. 1, 2018

A simultaneous English language translation of this journal is available from Pleiades Publishing, Ltd.
Distributed worldwide by Springer. Doklady Earth Sciences ISSN 1028-334X.

Geology

An Event-Based Depositional Model for the Paleocene–Eocene Sandy–Clayey–Siliceous Sequence of the Russian Platform

S. O. Zorina, N. I. Afanasieva and L. R. Khairtdinova p. 547  abstract

The Riphean Arsha Group of the South Urals: A Problem of the Geodynamic Origin of Rock Associations

Corresponding Member of the RAS A. V. Maslov, S. G. Kovalev, Corresponding Member of the RAS V. N. Puchkov and N. D. Sergeeva p. 551  abstract

A Neoarchean–Proterozoic Supercontinent (~2.8–0.9 Ga): An Alternative to the Model of Supercontinent Cycles

M. V. Mints p. 555  abstract

The Early Paleozoic Active Margin of the Khangai Segment of the Mongol–Okhotsk Ocean

Academician V. V. Yarmolyuk, I. K. Kozakov, A. M. Kozlovsky, E. A. Kudryashova, A. V. Travin, T. I. Kirnozova, M. M. Fugzan and Yu. V. Plotkina p. 559  abstract

The First Results of U–Pb Dating of the Nikolka Volcano (Central Kamchatka Depression)

V. A. Ermakov and G. N. Bazhenova p. 564  abstract

Nature and Age of Detrital Zircons from Rocks of the Shear Zone: The Problem of Occurrence of the Archean Basement in the Transangarian Yenisei Ridge

I. I. Likhanov, P. S. Kozlov, Academician V. V. Reverdatto and N. V. Popov p. 568  abstract

New Ideas on the Origin of Chalk in Upper Cretaceous Rocks of the Voronezh Anteclise

A. V. Zhabin, E. E. Belyavtseva, V. I. Sirotin and Z. H. Mahfuz p. 573  abstract

First Data about Mercury in Modern Hydrothermal Process in the Ocean, Juan de Fuca Ridge

Yu. I. Konovalov, L. N. Luchsheva and V. B. Kurnosov p. 575  abstract

Neoproterozoic Rare-Metal Subalkali Leucogranite from the Northern Yenisei Ridge

A. D. Nozhkin and Academician V. V. Reverdatto p. 580  abstract

Geochemistry

The Nature and Age of Plagioclasites in the Ultrabasic Rai-Iz Massif (Polar Urals)

N. V. Vakhrusheva and K. S. Ivanov p. 587  abstract

Structural Transformations and Retention of Radiogenic 4He in Platinum Minerals under Mechanical Deformations

A. G. Mochalov, O. V. Yakubovich and A. A. Zolotarev p. 591  abstract

Ultrahigh-Pressure Liquation of an Impact Melt

T. G. Shumilova, S. I. Isaenko, B. A. Makeev, A. A. Zubov, S. N. Shanina, Ye. M. Tropnikov and Academician A. M. Askhabov p. 595  abstract

Geophysics

The 2006 (Мw 8.3) and 2007 (Мw 8.1) Simushir Earthquakes and the 2011 Tohoku Megaearthquake (Мw 9.0): Tectonic Stresses and Development of the Seismic Process

T. K. Zlobin p. 599  abstract

Estimating the Contributions of the Atlantic Multidecadal Oscillation and Variations in the Atmospheric Concentration of Greenhouse Gases to Surface Air Temperature Trends from Observations

Academician I. I. Mokhov and D. A. Smirnov p. 602  abstract

Oceanology

A Tidal Semidiurnal Harmonic in the Black Sea Dynamics according to Numerical Modeling Results

Academician V. A. Ivanov, V. B. Zalesny, A. N. Lukyanova and A. V. Bagaev p. 607  abstract

Geochemistry

Comparison of Organic Matter from Upper Jurassic Oil Shale of the East European Platform and the Bazhenov Formation by Molecular and Isotopic Data

D. A. Bushnev, N. S. Burdelnaya, I. V. Goncharov, V. V. Samoylenko and M. A. Veklich p. 611  abstract

Dynamics of the Formation of Globular Silica Particles according to Dynamic Light Scattering

D. V. Kamashev and Academician A. M. Askhabov p. 615  abstract

First Data on the Age and P–T Formation Conditions of Zones of Low-Angle Dip Schistosity of the Belomorian Mobile Belt

V. M. Kozlovskiy, V. V. Travin, A. V. Travin and V. M. Savatenkov p. 618  abstract

Surface Typochemistry of Native Gold

V. L. Tauson, R. G. Kravtsova, S. V. Lipko, A. S. Makshakov and K. Yu. Arsentev p. 624  abstract

Matrices for Isolation of Actinide Wastes in a Deep Well Repository

Corresponding Member of the RAS S. V. Yudintsev, M. S. Nikolskii, B. S. Nikonov and V. I. Malkovskii p. 631  abstract

Geophysics

Anomalies in the Atmospheric Methane Content over Northern Eurasia in the Summer of 2016

S. A. Sitnov and Academician I. I. Mokhov p. 637  abstract

Model of the Deep Structure of the Elbrus Volcano in the Light of New Geophysical Data

A. V. Gorbatikov, E. A. Rogoghin, M. Yu. Stepanova, Yu. V. Kharazova, A. I. Sysolin, A. A. Rybin and N. V. Andreeva p. 642  abstract

Geography

Isotopic Indications of Meromixis in Separated Lakes on the White Sea Coast

Yu. K. Vasil’chuk, Academician A. P. Lisitzin, E. D. Krasnova, N. A. Budantseva, D. A. Voronov, A. N. Pantyulin, Ju. N. Chizhova and V. P. Shevchenko p. 646  abstract

Geochemistry

Hafnium–Neodymium Isotope Systematics of Carbonatites from the Guli Massif (Maimecha–Kotui Province, Russia)

K. N. Malitch, Academician L. N. Kogarko, I. Yu. Badanina and E. A. Belousova p. 652  abstract

Polyphase Inclusions in Chromium Spinels from Upper Triassic Gravelites from the Northeastern Part of the Siberian Platform

E. I. Nikolenko, A. M. Logvinova, A. E. Izokh, V. P. Afanasiev, O. B. Oleynikov and A. Ya. Biller p. 656  abstract

The Magmatic–Hydrothermal Transition and Origin of Brine in the Oceanic Core Complex of the Mid-Atlantic Ridge at 13° N

A. N. Pertsev, Academician N. S. Bortnikov, V. Yu. Prokofiev, Corresponding Member of the RAS L. Ya. Aranovich, O. A. Ageeva, V. E. Beltenev, O. M. Zhilicheva and E. V. Kovalchuk p. 661  abstract

Peculiarities of Diamonds in Eclogitic Xenoliths from the Komsomolskaya Kimberlite Pipe, Yakutia

Z. V. Spetsius and I. N. Bogush p. 666  abstract

Geophysics

Structural Evidence of Recent Activity of the Khatanga–Lomonosov Fault Zone in the Laptev Sea

B. V. Baranov, Corresponding Member of the RAS M. V. Flint, N. A. Rimskiy-Korsakov, S. G. Poyarkov and K. A. Dozorova p. 671  abstract

Formation of Oscillations with an 11-Hour Period after the Tohoku Earthquake

Corresponding Member of the RAS G. A. Sobolev p. 674  abstract

Geography

Results of Marine Radioecological Study of Fjords of Western Spitsbergen

Academician G. G. Matishov, G. V. Ilyin, I. S. Usyagina, D. A. Valuyskaya and A. A. Deryabin p. 679  abstract

Climatic Changes in the Dynamic Topography and Geostrophic Circulation of the Arctic Ocean

L. A. Timokhov, V. V. Ivanov, H. Kassens, N. V. Lebedev, Corresponding Member of the RAS I. Ye. Frolov and J. Hölemann p. 685  abstract

Oceanology

First Data on the Geochemical Speciation of Trace Metals in the Vertical Fluxes of Dispersed Sedimentary Matter in the White Sea

L. L. Demina, D. F. Budko, Academician A. P. Lisitzin and A. N. Novigatsky p. 689  abstract