ИСТИНА

Конгресс международного четвертичного Союза проводится раз в 4 года и объединяет исследователей различных наук о Жизни и Земле. Описание сессии P01. Title: Interpreting terrestrial palaeoclimates with the help of palaeosols and palaeoweathering profiles Short Title: Terrestrial palaeoclimates, palaeosols and palaeoweathering profiles Convener(s): Mohammed Rafi Sayyed [Poona College] Daniela Sauer [Dresden University of Technology] Alexander Makeev [Moscow University] Content Description: To better understand what will happen to the global climate in future it calls for understanding how Earth’s climate evolved in the geologic past. Since geological processes operate together during the episodes of climate change the stratigraphic records preserved in the oceanic and terrestrial systems are largely compared as a proxy in assessing the temporal and spatial characteristics of climate change. The changes in global geochemical and biotechnical cycles essentially altered the chemical evolution of our planet as a whole. In geologic past the weathering mantles are quite often seen well preserved in the form of palaeosols and palaeoweathering profiles. Thus palaeosols are important in palaeoclimatic studies because of their intrinsic characteristics to document long-term evolution of Earth-surface processes. The physical and chemical characters of the mineral and organic matters in palaeosols hold great potential as proxies in deducing the palaeoclimatic and palaeoatmospheric conditions, especially during the extreme events and abrupt climate changes. Some features of the past greenhouse worlds, particularly of Mesozoic and Cenozoic systems, seem to be analogous to the climate of Anthrpocene, and can be used in understanding the future climate change. Although palaeopedological research is largely based on qualitative approach, by comparing them with modern analogs, in recent years numbers of quantitative proxies have been developed. The aim of this session is to provide a forum for exchange of research approaches and results on the interdisciplinary palaeoclimatic studies of the palaeosols and palaeoweathering profiles, involving various proxies such as geochemistry, environmental magnetism, fossil assemblages, mineralogy, clay mineralogy, phytoliths, micromorphology etc. This session would offer a platform to exchange views and thoughts on the terrestrial palaeoclimatic research particularly focusing the impact of extreme climate change on biotic and abiotic systems across multiple time and space scales.