Stratigraphy and lithology
Section editor – PhD in geology and mineralogy Kirichkova A.I.
|Article # 035
|displayed on website on 10/01/2007
|Terramorphic pollen grains in modern and paleo-palynological spectra and some problems of palyno-stratigraphy
|Plants produce a large number of terramorphic and sterile pollen grains when ecological conditions are not favorable. Thus, the worse the environmental situation is, the higher the percentage of pathological pollen is, and vice versa. Pollen can be used to estimate the quality of modern environment. Reconstruction of paleoecological conditions can be also carried out through pollen studies (not modern pollen, but one extracted from ancient deposits). A large number of palynomorphs occurs on the eve of different paleoclimatic periods under the influence of unfavorable factors of different etiologies (like radiation, volcanic activity, increased solar activity etc.). Their number declines dramatically in the periods of ecological stability. The knowledge of modern pollen grains morphology formed under conditions of ecological trouble/environmental stress, specific processes associated with the pollen formation in those conditions together with integrated work of actuoopalynologists, paleopalynologists and paleoecologists can help to solve many complex problems connected not only with adaptogenesis and plants evolution, but also with our planet evolution as a whole.
Key words: ecological trouble, teratomorfnye pollen grains, paleopalynologists, reconstruction paleopalinologicheskih conditions.
|Dzyuba О.F. Terramorphic pollen grains in modern and paleo-palynological spectra and some problems of palyno-stratigraphy // Neftegazovaya Geologiya. Teoriya I Praktika. – 2007. - V.2. - http://www.ngtp.ru/rub/2/035.pdf