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Publication date: 8 June 2018. A. Odincova

June 8, 2018. D.Sc. Mikhail Kaban (GFZ, Potsdam, Germany) presented the report: "Structure and evolution of the lithosphere of North America on the basis of complex modeling of gravitational and seismic data" in the Belousov hall of GC RAS. The research team also included Alexey Petrunin, Walter D. Mooney and Magdala Tesauro.

Their research was devoted to the study of the Earth's crust and upper mantle of the North American continent. The results of the conducted studies made it possible to formulate a hypothesis about the displacement of the lower part of the North American craton in the western and south-western direction relative to its central part. Modeling of mantle convection has shown that the shift of the ancient platform was caused by the influence of mantle currents for 200 million years since the last reorganization of plate tectonics and the opening of the Atlantic. The results of the calculations fully correspond to the geological data. The authors of the study suggest a hypothesis about the existence of an interaction of mantle currents (thermal, mechanical, compositional) with the lithosphere.

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July 11, 2018. Corresponding member of the Russian Academy of Sciences, V. A. Petrov, head of the Geoinformatics Laboratory of IGEM RAS, visited GC RAS. The purpose of the visit was to participate in a working meeting in which A. Gvishiani, Director of the Geophysical Center, A. Soloviev, Deputy Director for Science, A. Rybkina, Deputy Director for Development, and researcher A. Odintsova participated.

July 6-10, 2018. Scientists of the Laboratory of Geoinformatics and Geomagnetic Studies D. V. Peregudov and M. N. Dobrovolsky took part in the joint event – the 26th Extended European Cosmic Ray Symposium and 35th Russian Cosmic Ray Conference. The event was held at the Altai State University (Barnaul, Russia).

July 2-4, 2018. Leading engineer of the Laboratory of Geoinformatics and Geomagnetic Studies of GC RAS A. Grudnev visited "Klimovskaya" observatory (Arkhangelsk region, Klimovskaya village). The main goal of the expedition is to carry out routine preventive works aimed at maintaining the working capacity of geomagnetic equipment, including a scalar magnetometer.

July 4, 2018. Two international scientific organizations - the International Council for Science (ICSU) and the International Social Science Council (ISSC) have united in a new union - the International Science Council (ISC). GC RAS represents the interests of Russia in the International Union of Geodesy and Geophysics (IUGG), now part of the ISC. IUGG General Secretary Alik T. Ismail-Zade was elected as the chief secretary of the newly formed Council.

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