Contents

Doklady Earth Sciences

Vol. 490, No. 1, 2020

GEOLOGY

Early Quaternary Age of the Final Stage of Volcanism in the Central Part of the Sredinny Range of Kamchatka (K–Ar Data)

M. M. Pevzner, V. A. Lebedev, Yu. V. Kuscheva, A. O. Volynets, M. L. Tolstykh and A. D. Babansky p. 1  abstract

Geology

The Mid-Paleozoic and Mid-Triassic Pulses of Trap Magmatism in the East of the Siberian Platform: Evidence from the First 40Ar/39Ar Isotope Dating of Dolerite Sills

A. V. Prokopiev, O. P. Polyansky, O. V. Koroleva, D. A. Vasiliev, M. D. Tomshin, Academician V. V. Reverdatto and S. A. Novikova p. 4  abstract

GEOCHEMISTRY

Ferriplantites in the Bauxite-Bearing Lateritic Weathering Rocks (Futa Jallon-Mandingo Province, Africa): The Key Factors for Iron Accumulation

V. I. Mamedov, E. S. Shipilova, N. M. Boeva, A. D. Slukin, M. A. Makarova, D. A. Vnuchkov and Academician N. S. Bortnikov p. 8  abstract

GEOPHYSICS

A Local Anomaly of the Stress State of the Earth’s Crust before the Strong Earthquake (M = 7.1) of July 5, 2019, in the Area of Ridgecrest (Southern California)

Academician V. G. Bondur, M. B. Gokhberg, I. A. Garagash and D. A. Alekseev p. 13  abstract

Geophysics

Interaction of the Atmosphere and Lithosphere in the Minute Range of Periods

Academician G. I. Dolgikh, S. G. Dolgikh, L. N. Vasilevskaya and I. A. Lisina p. 18  abstract

GEOPHYSICS

Model Estimates of Global and Regional Climate Changes in the Holocene

Academician I. I. Mokhov, A. V. Eliseev and V. V. Guryanov p. 23  abstract

Geophysics

Atmospheric Pressure Variations Induced by the Tohoku Earthquake

S. L. Shalimov, A. A. Spivak and V. A. Kharlamov p. 28  abstract

GEOGRAPHY

Reconstruction of Precipitation by Radial Growth of Scots Pine in the Southern Urals

D. Yu. Vasil’ev, S. E. Kucherov, Corresponding Member of the RAS V. A. Semenov and Academician A. A. Chibilev p. 31  abstract

Factors and Trends in the Formation of Natural–Technogenic Associations of Polycyclic Aromatic Hydrocarbons in the Snow–Soil System

A. N. Gennadiev, A. P. Zhidkin and T. S. Koshovskii p. 36  abstract

OCEANOLOGY

Seismic Evidences of Contourites on the Rio Grande Rise, Southwest Atlantic

O. V. Levchenko, Corresponding Member of the RAS L. I. Lobkovskii, D. G. Borisov and N. V. Libina p. 40  abstract

The Biological Calcium Carbonate Pump in the Norwegian and Barents Seas: Regulation Mechanisms

L. A. Pautova, V. A. Silkin, M. D. Kravchishina, A. L. Chultsova and Academician A. P. Lisitzin p. 46  abstract