Khimicheskiy sostav snezhnogo pokrova Vostochnoy Antarktidy  [Chemical composition of East Antarctic snow cover]

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Alternate Title:Chemical composition of East Antarctic snow cover
Authors:Vilenskiy, V. D.; Miklishanskiy, A. Z.
Volume Title:Geokhimiia
Source:Geokhimiia. No.11. USSR. P.1683-1690. ISSN: 0016-7525
Publication Date:1976
Note:In Russian with English summary. 11 refs. Ant. Acc. No: 17863. CRREL Acc. No: 31001512
Abstract:The chemical composition of snow cover samples of the Eastern Antarctic regions for the period 1884-1970 and the distribution of various elements in filtered off microparticles and water in samples of melted snow have been studied by the method of neutron-activation analysis. For most elements no substantial differences in enrichment coefficients are observed irrespective of the time and place of selecting samples of atmospheric aerosols and fallouts. The enrichment coefficients of manganese, cobalt and scandium confirm the idea that the indicated elements including iron are supplied into the atmosphere during weathering of the earth crust. The considerable enrichment of atmospheric aerosols and fallout in zinc, copper, arsenic, antimony, gold and partly in chromium and nickel is connected with natural and not with anthropogenic processes. The prevailing contribution of terrestrial material to atmospheric fallout even in the purest regions does not permit us to use the data on chemical composition for the estimation of the deposition of extraterrestrial material on the surface of the earth. (Auth. mod.)
Index Terms:Snow--Chemistry; Snow composition; Impurities; Fallout; Antarctica--East Antarctica
Coordinates:S900000 S650000 E1710000 W0400000
Publication Type:journal article
Record ID:59660
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