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Authors
Affiliations
1 Physical Research Laboratory, Ahmedabad, 380 009, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 51, No 3 (1998), Pagination: 399-404
Abstract
Oxygen isotopic ratios in water samples collected from various sources (recent snow, glacier ice, coastal sea, lakes etc.) near the two Indian stations in Antarctica (Dakshin Gangotri and Maitri) have been measured. The general range of δ18O values is from -14 to -30 (in ‰ w.r.t SMOW). The fresh water lakes in the Schirmacher Range area receive 30 to 40% of their input from melt water of adjoining glacier. This glacier has old ice characterized by extremely depleted δ18O value of -42‰ at the shallow depth of 10 m. This is not normally expected and can complicate interpretation of δ18O profile in cores from this region for palaeoclimatic studies.
Keywords
Geochemistry, Oxygen Isotopes, Ice, Snow, Water, Antarctica.
