Contents

Doklady Earth Sciences

Vol. 480, No. 2, 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

U–Pb LA–ICP–MS Age of Detrital Zircons from the Lower Riphean and Upper Vendian Deposits of the Luga–Ladoga Monocline

A. S. Ivleva, V. N. Podkovyrov, V. B. Ershova, V. B. Khubanov, A. K. Khudoley, S. N. Sychev, N. I. Vdovina and Corresponding Member of the RAS A. V. Maslov p. 695  abstract

Chronology of Hydrothermal Activity Within the Yubileynoye Ore Field (Mid-Atlantic Ridge, 20°08′ N)

V. Yu. Kuznetsov, E. V. Tabuns, K. A. Kuksa, G. A. Cherkashov, V. E. Bel’tenev, Kh. A. Arslanov, F. E. Maksimov, L. I. Lazareva, A. I. Zhuravleva, A. Yu. Petrov and V. A. Grigoriev p. 700  abstract

Regularities of Hydrocarbon Distribution in the Deepwater Part of the West African Margin

A. Zabanbark and Corresponding Member of the RAS L. I. Lobkovsky p. 705  abstract

Reconstructions of Paleoecological and Paleoclimatic Conditions of the Late Pleistocene and Holocene according to the Results of Chironomid Analysis of Sediments from Medvedevskoe Lake (Karelian Isthmus)

L. B. Nazarova, D. A. Subetto, L. S. Syrykh, I. M. Grekov and P. A. Leontev p. 710  abstract

Shear Tectonic Fabric in the Atlantic Ocean and Its Relation to the Geodynamic Condition of the Upper Mantle and Intraplate Deformations

S. Yu. Sokolov p. 715  abstract

Source Provenance and Paleogeographic Conditions during Deposition of Jurassic Continental Sediments in the Southern Part of the Siberian Platform (Implication of Sm–Nd and U–Pb Data)

E. I. Demonterova, A. V. Ivanov, E. A. Mikheeva, A. V. Arzhannikova, A. O. Frolov, S. G. Arzhannikov, N. V. Bryanskiy, L. A. Pavlova, L. Z. Reznitskii and O. V. Zarubina p. 720  abstract

First Data on Formation Conditions of the Zhilnoye Au–Ag Epithermal Gold Deposit (Eastern Chukotka, Russia)

A. A. Elmanov, V. Yu. Prokofiev, A. V. Volkov, Corresponding Member of the RAS A. A. Sidorov and K. I. Voskresenskiy p. 725  abstract

Comparison of Supercontinent Cycles in the Metallogeny of Rare Earth Elements

A. V. Tkachev, Academician D. V. Rundqvist and N. A. Vishnevskaya p. 730  abstract

Geochemistry

Long-Term Geochemical Monitoring of the Source of the Angara River (Runoff from Lake Baikal)

V. I. Grebenshchikova, Academician M. I. Kuzmin, O. A. Proydakova and O. V. Zarubina p. 735  abstract

Zircons in Gabbro of the Nurali Massif (Southern Ural)

A. A. Krasnobaev, P. M. Valizer, Corresponding Member of the RAS V. N. Anfilogov, E. V. Medvedeva and S. V. Busharina p. 741  abstract

GEOCHEMISTRY

First Find of Ga-Bearing Minerals in Ores of Ural Massive Sulfide Deposits

N. P. Safina, N. R. Ayupova, E. V. Belogub, Corresponding Member of the RAS V. V. Maslennikov, I. A. Blinov, I. G. Zhukov and D. A. Artem’ev p. 746  abstract

Movement Rates of Metamorphic Fronts in Rocks near Magmatic Intrusive Bodies

Academician V. V. Reverdatto, A. V. Babichev, I. I. Likhanov and O. P. Polyansky p. 750  abstract

Geophysics

Geodynamic Evolution Model of the Major Structures of Amerasian Basin

Corresponding Member of the RAS L. I. Lobkovsky, I. A. Garagash and D. A. Alekseev p. 753  abstract

Geography

Oxygen Isotope Composition of Holocene Ice Wedges of Eastern Chukotka

Yu. K. Vasil’chuk, N. A. Budantseva, A. C. Vasil’chuk, A. A. Maslakov and Ju. N. Chizhova p. 758  abstract

Sources of Dissolved Organic Carbon in Rivers of the Yenisei River Basin

A. S. Prokushkin, O. S. Pokrovsky, M. A. Korets, A. V. Rubtsov, S. V. Titov, I. V. Tokareva, R. A. Kolosov and R. M. W. Amon p. 763  abstract

Oceanology

Chukchi Sea Ice Conditions for the Last Few Centuries: Reconstruction from Sedimentation Records

A. S. Astakhov, Academician V. A. Akulichev, A. V. Dar’in, I. A. Kalugin, Yanguang Liu, V. V. Babich, A. A. Bosin, E. G. Vologina and V. V. Plotnikov p. 767  abstract

Geochemistry

Sources of Ore Substance of Carbonatite Complexes of the Ural Fold Belt: Rb–Sr and Sm–Nd Isotope Data

I. L. Nedosekova, Academician V. A. Koroteev, T. B. Bayanova and B. V. Belyatsky p. 773  abstract

Andradite–Morimotoite Garnets as Promising U–Pb Geochronometers for Dating Ultrabasic Alkaline Rocks

E. B. Salnikova, M. V. Stifeeva, A. V. Nikiforov, Academician V. V. Yarmolyuk, A. B. Kotov, I. V. Anisimova, A. M. Sugorakova and V. V. Vrublevskii p. 778  abstract

Geophysics

Gravimagnetism: Results of Observatory Monitoring

Corresponding Member of the RAS A. L. Sobisevich p. 783  abstract

Variations in Geophysical Fields during Hurricanes and Squalls

A. A. Spivak, Yu. S. Rybnov and V. A. Kharlamov p. 788  abstract

Geography

Characterization of the Biodiversity of Modern Sea Ice in the North Pole Region

I. A. Melnikov p. 792  abstract

Oceanology

Peculiarities of the Formation of the Interference Structure of Scalar-Vector Acoustic Fields on the Shelf of the Sea of Japan

Academician V. A. Akulichev, V. V. Bezotvetnykh, A. V. Burenin, E. A. Voytenko, A. A. Golov, Yu. N. Morgunov, D. S. Strobykin and A. A. Tagiltsev p. 796  abstract

Paleochannels on the Northern Slope of the Derbent Basin, Caspian Sea

A. K. Ambrosimov and Academician A. P. Lisitzin p. 800  abstract

Geochemistry

First Evidence of the Archean Age of Orogenic Gold of the Russian Part of the Karelian Craton (Fennoscandian Shield): Sm–Nd Mineral Isochron for Gold-Bearing Metasomatites of the Novye Peski Deposit

V. I. Ivashchenko, S. A. Bushmin, A. M. Ruchyev, A. S. Kornakov, E. S. Bogomolov, E. V. Savva, M. V. Ivanov, V. M. Tytyk and P. V. Frolov p. 804  abstract

Signs of Hydrothermal Activity in Lunar Rocks according to the Data of a Regolith Investigation

P. M. Kartashov, A. V. Mokhov, T. A. Gornostaeva and Academician O. A. Bogatikov p. 810  abstract

New Data on Diamond–Graphite Relationships in the Gneisses of the Kokchetav Massif (Northern Kazakhstan)

D. S. Mikhailenko, O. V. Shchepetova, K. A. Musiyachenko, A. V. Korsakov, Hiroaki Ohfuji and Corresponding Member of the RAS I. V. Pekov p. 814  abstract

Evaluation of the Phosphorus Load on Freshwater Bodies of Subjects of the Russian Federation: Modeling of the Migration of Phosphorus and Its Compounds among Environmental Components

Corresponding Member of the RAS N. P. Tarasova, A. S. Makarova, E. G. Vasileva, P. I. Shlyakhov and A. A. Zanin p. 818  abstract

Experimental Test of Possible Formation of Diamond under the Differentiation of the Earth

A. I. Chepurov, E. I. Zhimulev, V. M. Sonin, A. A. Tomilenko and Academician N. P. Pokhilenko p. 823  abstract

Geophysics

Simulation of the Conditions for the Formation and Dissociation of Methane Hydrate over the Last 130 000 Years

M. M. Arzhanov, V. V. Malakhova and Academician I. I. Mokhov p. 826  abstract

Electroconducting Elements of the Ultradeep Fluid–Fault Systems as Indicators of Seismically Active Zones of the Eastern Margin of the Eurasian Continent: Evidence from Magnetotelluric Data

V. M. Nikiforov, G. N. Shkabarnya, V. B. Kaplun, A. Yu. Zhukovin, I. M. Varentsov, N. A. Palshin, D. H. Cuong, N. N. Trung and D. Q. Hung p. 831  abstract