Abstract
Physico-chemical data and isotopic studies (utilising H14CO3, H2 18O, 3H2O) suggest that hypersaline meromixis in Ellis Fjord (Vestfold Hills, Antarctica) was initiated during the middle Holocene period, when hypersaline brine, excluded during the annual formation of sea-ice, gravitated in a density current to the bottom. The application of this contemporary information to the genesis of the meromictic lakes found today in the Vestfold Hills, suggest that their meromixis may have developed prior to isolation from the sea. Comparison of physico-chemical data from the meromictic basins of Ellis Fjord with that of the Vestfold Hills saline lake allows some determination of their evolutionary pathways initiated before, during and after isolation from the sea. Further evolution of each lake can be explained through the individual interaction between climate, the catchment size and basin morphology.
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Gallagher, J.B., Burton, H.R. & Calf, G.E. Meromixis in an antarctic fjord: a precursor to meromictic lakes on an isostatically rising coastline. Hydrobiologia 172, 235–254 (1989). https://doi.org/10.1007/BF00031625
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DOI: https://doi.org/10.1007/BF00031625