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A MEROMICTIC LAKE IN AUSTRALIA
Author(s) -
TIMMS B. V.
Publication year - 1972
Publication title -
limnology and oceanography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.7
H-Index - 197
eISSN - 1939-5590
pISSN - 0024-3590
DOI - 10.4319/lo.1972.17.6.0918
Subject(s) - salinity , chemocline , structural basin , oceanography , maar , mesothermal , geology , anoxic waters , environmental science , hydrology (agriculture) , paleontology , fluid inclusions , quartz , geotechnical engineering , volcano
West Basin Lake, a small saline maar near Colac, Victoria, has a salinity differential between mixolimnion and monimolimnion of 40‰. There are also marked differences in p H, oxygen, and hydrogen sulfide concentrations in the two zones. The mixolimnion stratified during summer and as it cooled in autumn the lake became mesothermal and finally by winter the temperature profile was inverted. Meromixis appears to be of recent ectogenic origin and its present low stability indicates imminent destruction.