Jean Bourgain was a major mathematical force throughout his entire career, from his student days to his untimely passing on December 22, 2018, at the age of 64. His profound and prolific research achievements in a remarkably broad array of fields will be studied and written about for years to come.Remembrances and volumes in his memory have and continue to be produced around the world. The website https://www.ias.edu/events/honoring-bourgain contains recordings of the mathematical lectures and remembrances from the memorial "Honoring the Life and Work of Jean Bourgain" that took place at the Institute for Advanced Study in Princeton on May 30 and June 1, 2019, as well as recollections by Jean's colleagues at IAS, and letters from his family. A collection of survey articles on various aspects of Jean's mathematical impact by K. Ball, C. Demeter, C.
The key features of the geological structure of the Riphean sedimentary cover within the Aldan-Maya petroleum region are considered. Using seismic and acoustic logging data, the velocity characteristics of the Riphean deposits were studied. It was shown that the main acoustic contrasts are associated with the formation of sustained intra-Riphean reflectors. They correlate with the boundaries of formations and series. Based on the results of generalization and interpretation of seismic data on 9 projects of regional prospecting, seismogeological sections and structural maps were constructed, which served as the basis for structural-tectonic zoning of the territory within the Aldan-Maya petroleum region. Tectonic maps are presented for two structural stages - Upper Karelian-Lower Riphean and Upper-Middle Riphean, their fundamental difference is shown, in particular, the large May inclined swell is developed only in the reliefs of the lower Riphean not in the Middle-Upper Riphean surfaces.
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