Boreskov

PP‐11COSMIC PERIODICITY IN PHANEROZOIC GEOLOGYGlazachev D.O.Institute of Geosphere Dynamics of Russian Academy of Sciences (IDG RAS), Moscow, Russia,GlazachevD@gmail.comThere is cyclisity in many processes, such as the changes in mainlands' structure,variation in biodiversity of species, galaxy influence, impacts of cosmic bodies. The problemof an establishment of the cyclicity and correlation of all those processes discovering hasbeen performed for 50 years.In the present work we search for interrelation of events in biosphere and geospheres ofthe Earth from comparison of the data on mass extinctions and impacts and data ongeological activity for the same period (Phanerozoic). Phanerozoic history contains allextinction events of the “Big Five” (major extinction events by Jack Sepkoski and David M.Raup) — End‐ Cretaceous (65.5 Ma), Late Devonian (205 Ma), End‐Permian (251 Ma), End‐Triassic (360‐375 Ma), and End‐ Ordovician (440‐450 Ma). In addition, we examine data onPhanerozoic climate change, which kept data on the glacial periods. There are four majorperiods called glacial periods with lowest average temperature on the Earth defined by 18 Oparts per thousand.The results of spectral, wavelet and correlation analysis of data series representing thoseprocesses are shown in the report. The conclusion is made that most of them are cyclic,some of the periods are present in all the processes. The galactic causes of the cycles withduration in tens and hundreds millions years are discussed.150