Technology of nondestructive light gas extraction from ice tested on samples from a bore hole above Vostok Lake
- Authors: Chetverikov Y.O.1, Aruev N.N.2, Bulat S.A.1, Ezhov V.F.1,3, Lipenkov V.Y.4, Solovei V.A.1, Tyukal’tsev R.V.2, Fedichkin I.L.2
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Affiliations:
- Petersburg Nuclear Physics Institute
- Ioffe Physical-Technical Institute
- St. Petersburg State University
- Arctic and Antarctic Research Institute
- Issue: Vol 61, No 7 (2016)
- Pages: 1091-1096
- Section: Experimental Instruments and Technique
- URL: https://journals.rcsi.science/1063-7842/article/view/197618
- DOI: https://doi.org/10.1134/S1063784216070082
- ID: 197618
Cite item
Abstract
Nondestructive technology has been developed for the extraction of light gases dissolved in ice. The technology has been tested on samples of atmospheric and congealed ice of the 5-G3 bore hole of the Vostok station (East Antarctica) extracted from depths of 3457–3698 m. Down to 3539 m, ice is of an atmospheric origin, while ice deposited deeper is formed by natural water of Vostok Lake frozen on the glacier. Light gases were extracted into samplers (glass flasks) in the course of the 3-day degassing of samples freshly elevated from a bore hole. The samples were analyzed on the FT-1 time-of-flight mass spectrometer 6 months after sampling. Measurements reveal the presence of amounts of helium as well as molecular hydrogen considerably exceeding the atmospheric values. Measured values of gas ratio H2/4He = 5.4 ± 1.9 in the samples from depths of 3596–3698 m exceed the atmospheric values by more than an order of magnitude.
About the authors
Yu. O. Chetverikov
Petersburg Nuclear Physics Institute
Author for correspondence.
Email: yurka@lns.pnpi.spb.ru
Russian Federation, Gatchina, Leningrad oblast, 188300
N. N. Aruev
Ioffe Physical-Technical Institute
Email: yurka@lns.pnpi.spb.ru
Russian Federation, Politekhnicheskaya ul. 26, St. Petersburg, 194021
S. A. Bulat
Petersburg Nuclear Physics Institute
Email: yurka@lns.pnpi.spb.ru
Russian Federation, Gatchina, Leningrad oblast, 188300
V. F. Ezhov
Petersburg Nuclear Physics Institute; St. Petersburg State University
Email: yurka@lns.pnpi.spb.ru
Russian Federation, Gatchina, Leningrad oblast, 188300; Universitetskaya nab. 7-9, St. Petersburg, 199034
V. Ya. Lipenkov
Arctic and Antarctic Research Institute
Email: yurka@lns.pnpi.spb.ru
Russian Federation, ul. Beringa 38, St. Petersburg, 199397
V. A. Solovei
Petersburg Nuclear Physics Institute
Email: yurka@lns.pnpi.spb.ru
Russian Federation, Gatchina, Leningrad oblast, 188300
R. V. Tyukal’tsev
Ioffe Physical-Technical Institute
Email: yurka@lns.pnpi.spb.ru
Russian Federation, Politekhnicheskaya ul. 26, St. Petersburg, 194021
I. L. Fedichkin
Ioffe Physical-Technical Institute
Email: yurka@lns.pnpi.spb.ru
Russian Federation, Politekhnicheskaya ul. 26, St. Petersburg, 194021