Contents
Transactions (Doklady) of the Russian Academy of Sciences/Earth Science Section

Vol. 449, Part 1, 2013

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

Translated from Doklady Akademii Nauk, Volume 449, Nos. 1–3

Volume 449, Part 1, March.

Part 1. Geology

Late Cambrian Ophiolites in the Southwestern Periphery
of the Kokchetav Massif (Northern Kazakhstan): Structural Position,
Composition, and Geochronology

K. E. Degtyarev, A. A. Tretyakov, T. Yu. Tolmacheva, and K. N. Shatagin p. 265  abstract

Upper Mantle Convection and the Mechanism of Formation of Geostructures
of the Arctic Region

L. I. Lobkovskii, E. V. Shipilov, and M. V. Kononov p. 270  abstract

Geodynamic Formation Conditions and Magmatic Sources of Late Cambrian Sills
and Dikes in the Daribi Range (Western Mongolia)

D. V. Kovalenko, A. A. Mongush, O. A. Ageeva, and G. Eenjin p. 275  abstract

Mechanisms Responsible for Degradation of Submarine Permafrost
on the Eastern Arctic Shelf of Russia

L. I. Lobkovskii, S. L. Nikiforov, N. E. Shakhova, I. P. Semiletov,
N. V. Libina, R. A. Anan’ev, and N. N. Dmitrevskii p. 280  abstract

Geology and Paleomagnetism of the Vendian and Lower Cambrian Deposits
from Argun Terrane (Eastern Transbaikalia)

D. V. Metelkin, I. V. Gordienko, L. I. Vetluzhskikh, and N. E. Mikhaltsov p. 284  abstract

Mineral Nanostructures of Clay Rocks

V. N. Sokolov and M. S. Chernov p. 290  abstract

New Data on the Age of Neopleistocene Sediments in the Tunka Rift Valley
(Southwestern Baikal Region) Derived from ¹⁴C Dating of Large Mammal Fossils

A. A. Shchetnikov, A. M. Klement’ev, A. V. Sizov, I. A. Filinov, and E. Yu. Semenei p. 293  abstract

Sr Isotope Signatures in the Vendian Khorbusuonka Group
of the Olenek Uplift (Northeastern Siberian Platform)

I. A. Vishnevskaya, B. B. Kochnev, E. F. Letnikova, V. Yu. Kiseleva, and N. I. Pisareva p. 298  abstract

New Constraints for the Age of Vendian Glacial Deposits (Central Urals)

A. V. Maslov, J. Meert, N. M. Levashova, Yu. L. Ronkin, D. V. Grazhdankin, N. B. Kuznetsov,
M. T. Krupenin, N. M. Fedorova, and I. S. Ipat’eva p. 303  abstract

Part 2. Geochemistry, Geophysics, Oceanology, Geography

⁴⁰Ar/³⁹Ar-Dating of Phlogopite from Mantle Xenoliths:
Evidence for Deep Ancient Metasomatism of the Siberian Craton Lithosphere

L. N. Pokhilenko, T. A. Alifirova, and D. S. Yudin p. 309  abstract

Holocene Sedimentary Record of Bol’shoe Alginskoe Lake, Western Transbaikalia:
Connection with Paleoclimate

E. P. Solotchina, E. V. Sklyarov, P. A. Solotchin, E. G. Vologina,
O. A. Sklyarova, and N. N. Ukhova p. 313  abstract

Temperature Trends in the Permafrost of the Northern Hemisphere:
Comparison of Model Calculations with Observations

M. M. Arzhanov and I. I. Mokhov p. 319  abstract

Geomagnetic Disturbances in the Geomagnetic Field’s Variations at Stages of Preparation
and Implementation of the Elazig (March 8, 2010) and M 5.3 (January 19, 2011)
Earthquakes in Turkey

L. E. Sobisevich, K. Kh. Kanonidi, A. L. Sobisevich, and O. I. Miseyuk p. 324  abstract

Variation in Fracture Zone Rigidity by Dynamic Effects

A. A. Spivak and V. M. Khazins p. 328  abstract

Distribution of Rare-Earth Elements in Rocks and Ores
of the Kruchininskoe Apatite–Titanomagnetite Deposit (Eastern Transbaikalia)

B. N. Abramov p. 332  abstract

Genetic Peculiarities and the First Data on the U–Pb Age of the Solzan Granitoid Massif,
Khamar-Daban (Baikal Area)

V. A. Makrygina, V. S. Antipin, E. N. Lepekhina, E. V. Tolmacheva, and N. V. Gorlacheva p. 337  abstract

Hydroxymanganopyrochlore: A New Mineral from the Eifel Volcanic Region, Germany

N. V. Chukanov, G. Blass, N. V. Zubkova, I. V. Pekov, D. Yu. Pushcharovskii, and H. Prinz p. 342  abstract

Assessments of Stability of Methane Hydrates in the Lake Baikal System

S. N. Denisov, M. M. Arzhanov, A. V. Eliseev, and I. I. Mokhov p. 346  abstract

The First Data on Neoproterozoic Granitoid Magmatism
in the Sayan Marginal Uplift of the Siberian Craton

A. D. Nozhkin and N. V. Dmitrieva p. 349  abstract

Landslides on the Eastern Slope of Sakhalin Island as Possible Tsunami Sources

B. V. Baranov, L. I. Lobkovskii, E. A. Kulikov, A. B. Rabinovich, Y. K. Jin, and K. A. Dozorova p. 354  abstract

Study of Parameters of the Middle Pleistocene Transition by Comparison
of the Isotope-Oxygen Record LR04 with the Orbital-Climatic Diagram

V. A. Bolshakov p. 358  abstract

A Model of Ozone Variation in the Mesosphere Based on Measurements of Infrared Emission
of the Atmospheric Molecular Oxygen System

A. I. Semenov, K. V. Lipatov, V. I. Perminov, and N. N. Shefov p. 362  abstract

Two Verified Forecasts of Catastrophic Floods in Ladoga Lake and the Neva Delta in 1924

V. I. Bogdanov and T. I. Malova p. 366  abstract

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