Contents

Izvestiya, Physics of the Solid Earth

Vol. 57, No. 2, 2021

Seismic Studies of the Earth’s Core

V. M. Ovtchinnikov and D. N. Krasnoshchekov p. 141  abstract

Maximum Earthquakes in Future Time Intervals

V. F. Pisarenko, A. A. Lyubushin and M. V. Rodkin p. 163  abstract

The State of the Art in Studying the Deep Structure of the Earth’s Crust and Upper Mantle beneath the Baikal Rift from Seismological Data

A. I. Seredkina p. 180  abstract

The August 19, 2018 (MW = 8.2) Strong Deep Earthquake West off the Tonga Islands in the Context of Developing Our Concepts of Deep Earthquakes

A. I. Lutikov, E. A. Rogozhin, G. Yu. Dontsova and V. N. Zhukovets p. 203  abstract

Nb–Zr–Y Systematics and Thermal Regimes of Subcontinental Lithospheric Mantle in the Archaean: Data from Mantle Xenoliths

L. P. Nikitina and M. S. Babushkina p. 217  abstract

New Paleomagnetic Data on Late Cretaceous Chukotka Volcanics: the Chukotka Block Probably Underwent Displacements Relative to the North American and Eurasian Plates after the Formation of the Okhotsk-Chukotka Volcanic Belt?

I. E. Lebedev, P. L. Tikhomirov, A. M. Pasenko, B. Eid, F. Lhuillier and V. E. Pavlov p. 232  abstract

Late Ediacaran Hyperactivity Period: Quantifying the Reversal Frequency

N. M. Levashova, I. V. Golovanova, D. V. Rud’ko, K. N. Danukalov, S. V. Rud’ko, R. Yu. Sal’manova and N. D. Sergeeva p. 247  abstract

3D Numerical Modeling of the Summit Lake Lava Flow, Yellowstone, USA

I. A. Tsepelev, A. T. Ismail-Zadeh and O. E. Melnik p. 257  abstract

Next Generation Gravity Missions to Address the Challenges of High-Precision Space Gravimetry

A. S. Zhamkov and V. K. Milyukov p. 266  abstract

Discussions

The Relationship between Multifractal and Entropy Properties of Seismic Noise in Kamchatka and Irregularity of the Earth’s Rotation

A. A. Lyubushin, G. N. Kopylova and Yu. K. Serafimova p. 279  abstract

Comment on the paper “The Relationship between Multifractal and Entropy Properties of Seismic Noise in Kamchatka and Irregularity of the Earth’s Rotation” by A.A. Lyubushin, G.N. Kopylova, and Yu.K. Serafimova

V. A. Saltykov p. 289  abstract

Reply to the Comment by V.A. Saltykov on the Paper “The Relationship between Multifractal and Entropy Properties of Seismic Noise in Kamchatka and Irregularity of the Earth’s Rotation” by A.A. Lyubushin, G.N. Kopylova, and Yu.K. Serafimova

A. A. Lyubushin and G. N. Kopylova p. 292  abstract