talik
/ˈtalɪk
/noun Geology
An area of unfrozen ground surrounded by permafrost.Pitty considered that even under extreme permafrost development, taliks would be present beneath major rivers in the Scllafield area....
- Methane is formed in taliks from the organic matter buried in permafrost and gets to rivers from there.
- Occasional tritium in some samples at depth indicate a combination of gradients from mine drawdown and taliks allowing recharge of modern fresh water to depth.
Origin
1940s: from Russian, from tayatʹ 'melt'.