|
Zhurnal Tekhnicheskoi Fiziki, 2016, Volume 86, Issue 7, Pages 130–135
(Mi jtf6511)
|
|
|
|
This article is cited in 1 scientific paper (total in 1 paper)
Experimental instruments and technique
Technology of nondestructive light gas extraction from ice tested on samples from a bore hole above Vostok Lake
Yu. O. Chetverikova, N. N. Aruevb, S. A. Bulata, V. F. Ezhovac, V. Ya. Lipenkovd, V. A. Soloveia, R. V. Tyukal'tsevb, I. L. Fedichkinb a B. P. Konstantinov Petersburg Nuclear Physics Institute, Russian Academy of Sciences
b Ioffe Institute, St. Petersburg
c Saint Petersburg State University
d Arctic and Antarctic Research Institute, St. Petersburg, Russia
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 H$^{2}/^{4}$He = 5.4 $\pm$ 1.9 in the samples from depths of 3596–3698 m exceed the atmospheric values by more than an order of magnitude.
Received: 29.12.2015
Citation:
Yu. O. Chetverikov, N. N. Aruev, S. A. Bulat, V. F. Ezhov, V. Ya. Lipenkov, V. A. Solovei, R. V. Tyukal'tsev, I. L. Fedichkin, “Technology of nondestructive light gas extraction from ice tested on samples from a bore hole above Vostok Lake”, Zhurnal Tekhnicheskoi Fiziki, 86:7 (2016), 130–135; Tech. Phys., 61:7 (2016), 1091–1096
Linking options:
https://www.mathnet.ru/eng/jtf6511 https://www.mathnet.ru/eng/jtf/v86/i7/p130
|
Statistics & downloads: |
Abstract page: | 27 | Full-text PDF : | 8 |
|