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To understand the natural causes of the ?global warming?, it?s necessary to know the temporal evolution of the warm and cold phases of some cosmic phenomena with a cyclical development that induced the general climate of our planet in the past. For historic times, the climatic effects of shorter cycles are manifested more than those of longer ones, which are less visible. Thus, the ?global warming? (in fact the ?Actual Climatic Optimum? - ACO) can be regarded as the last warm phase of the mini-glaciations cycle. T...

This scheme is based on the idea that the stratigraphic limits of this time interval (251 ma) correspond to the temporal positions of a large number of distinct dynamic moments (change of meaning of the radial motions) linked with two cycles: Valach climatic cycle (VhCCy ? 4.1 ma, pulsations of the Solar System) and Raup-Sepkoski cycle (RSCy ? 26.78 ma, pulsations of our galaxy). Many of these moments, often perceived as tectonic phases or as important extinctions, led various global changes which allowed the sepa...

Our new perspective on possible cosmic causes of the tectonic phases as well as our attempt to elaborate a cyclostratigraphic chart of the Neogene for Central Paratethys, imposed a reconsideration of the key data on the Wallachian tectonic phase. Especially since this important moment was ?abolished? by some modern authors. The Wallachian phase was defined by Hans Stille in connection with the Neogene?Quaternary limit. But this German geologist relied on the data of Romanian geologists who published, from 1907 to ...

An analysis of the stratigraphic positions of the Neogene coal facies in Romania and in the countries around lead to a first cyclo-stratigraphic coherent scheme for the Neogene in the Central Paratethys (?icleanu et al., 2001). This was based upon the warm and cold phases of a climatic cycle with 4.1 ma period highlighted by us since 1998 (Prague), named ?Valach climatic cycle? at that time. This scheme was also based on absolute geological ages of the Neogene important limits: Paleogene-Neogene (23.8 ma), Miocene...

The quasi-permanent seismic activity that characterizes our planet can be very well explained through the geodynamic pulsatory model for Earth. The cosmic cycles governing effectively TerraпїЅs evolution can provide a current and pretty realistic image compatible with sustained seismic activity of the Earth. More exactly, the phases of these dynamic cycles are crucial because they correspond to a trend of planetary expansion or contraction for Terra. From this point of view there are especially important two cycle...

Every cyclic geological phenomenon may sugge st a structural image of the geological time. The dynamic cycles with very long periods can characterize the whole geological time, but especially the Precambrian. The cy cles with periods between 4 and 26 Ma are useful for the temporal individualization of th e Phanerozoic and the cycles with a short periods are very representative for Cenozoic. But the Earth’s geological history also provides a good perspective over the cosmic time through a super-mega-cycle (~2.56 ...