Affiliation:
1. Birbal Sahni Institute of Palaeobotany, India
Abstract
During XIX-XX Indian Antarctic Expedition (IAE), two sediment cores were collected. The occurrence of the exotic pollen taxa like Larix, Ulmus, grasses, few herbs, local moss spores, and other cryptogams prove the activity of the palaeowind, which in turn caused transportation microbiota from a long distance. The study of pollen-spores accumulation in polar air (deduced from slide exposures from 40° S) to Antarctic mainland studied for two years (2000 and 2001) as well as surface deposits (45 moss tuft, 15 lichen samples, 10 frozen soils, 10 moraine matrix) is well corroborated with lake sediment study. Ten bulk ice samples from the Antarctic ice cap (5 litres of ice melt) from Schirmacher Oasis were studied to recover trapped palynodebris to understand the depositional pattern of various microbiota in the Antarctic ice sheet.
Reference20 articles.
1. Cenozoic history of the Vestfold Hills;D.Adamson;Antarctic Oasis,1986
2. The Antarctic Ice Sheet during the Last Glacial Maximum and its subsequent retreat history: a review
3. Modern pollen – spore rain in Schirmacher Oasis, East Antarctica.;S. K.Bera;Current Science,2003
4. Late Holocene palaeo-winds and climatic changes in Eastern Antarctica as indicated by long-distance transported pollen-spores and local microbiota in polar lake core sediments.;S. K.Bera;Current Science,2004
5. Recovery of airborne palyno debris from continental ice sheet qasis, East Antarctica.;S. K.Bera;Current Science,2005