Paleogene and Neogene stratigraphy and paleotemperature trend of West Siberia (from palynologic data)

Publication year: 2011
Source: Russian Geology and Geophysics, Volume 52, Issue 7, July 2011, Pages 709-716

V.S., Volkova

The paper discusses the Paleogene and Neogene stratigraphy of Siberia and estimates the paleotemperature and precipitation trends. The paleotemperatures were estimated on the basis of climatograms (V.P. Grichuk) and the analysis of temperatures in the ranges of the main plant genera. The Paleogene and Neogene temperatures were always high (at least 0° C). The average annual temperatures varied from +20 to +10 – +5 ºC, the winter temperature being from +10 to +5 – +3 °C. The precipitation varied from 1400–1000 mm/yr in the Paleocene and Eocene to 800–500 mm/yr in the Oligocene and 250–100 mm/yr in the Late Miocene….