Isotopic and related studies of antarctic ice samples

Bhandari, N. ; Bhattacharya, S. K. ; Nijampurkar, V. N. ; Sengupta, D. ; Shah, V. G. ; Singhvi, A. K. ; Shukla, P. N. ; Suthar, K. M. ; Vohra, C. P. (1984) Isotopic and related studies of antarctic ice samples Proceedings of the Indian Academy of Sciences - Earth and Planetary Sciences, 93 (2). pp. 135-140. ISSN 0253-4126

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The ice samples obtained from Dakshin Gangotri, Antarctica show the presence of nuclear debris, attributed mainly to French nuclear explosions. Cosmogenic7Be occurs at levels of 30 dpm/L. The vertical profile ofdD in 6 m long drill core ranges between -130 and -180% compared to Standard Mean Ocean Water (SMOW). No systematic change with depth is seen. Small amounts of dust obtained by filtering melt water show presence of metallic spherules. Absence of elements characteristic of meteoritic or cometary debris suggests that most of them are of volcanic or industrial origin.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Antarctica; Radioactive fallout; Isotopic composition; Spherules
ID Code:18497
Deposited On:17 Nov 2010 09:10
Last Modified:17 May 2016 03:12

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