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Clathrate formation and the fate of noble and biologically useful gases in Lake Vostok, Antarctica

Authors
Type
Published Article
Journal
Geophysical Research Letters
Publisher
American Geophysical Union
Publication Date
Jun 30, 2003
Volume
30
Issue
13
Source
SETI Institute
License
Unknown

Abstract

[1] Lake Vostok is a large lake located 4 km beneath the East Antarctic Ice Sheet that should be supersaturated with dissolved gases in equilibrium with clathrate present in the water column. Here we show that if the age of the lake is such that the lake water mass has been cycled over 30 times then the total dissolved gas equilibrates at about 2.5 liters (STP) of gas per kg of water; high enough to have important implications for drilling into this deep subglacial lake. Different air gases are preferentially incorporated into the clathrate ...

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