Chemical composition of some inland surface waters and lake deposits of New South Wales, Australia

Chemical data are presented for several lakes and two impoundments on the Kosciusko and Monaro plateaux in south-eastern New South Wales, and for two rivers (Paroo and Darling), several freshwater lakes, and deposits from some dry salt lakes in western New South Wales. The concentrations of the major cations and anions, nitrate plus nitrite, and orthophosphate were investigated. For lake deposits, only major ions were investigated. The Kosciusko lakes were extremely fresh (salinity <3 p.p.m.) and chemically dominated by sodium and either bicarbonate, chloride or sulphate ions ; the Monaro peneplain lakes had a considerable salinity range (69-21,244 p.p.m.), and, with increasing salinity, sodium and chloride quickly assumed dominance. The Paroo and Darling Rivers had salinities <400 p.p.m, and the western freshwater lakes <850 p.p.m.; in both rivers and lakes, sodium and bicarbonate were the dominant ions. Deposits from dry salt lakes were mainly sodium chloride.

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Chemistry of the Cudgegong River, New South Wales

Marine and Freshwater Research ◽

10.1071/mf9790325 ◽

1979 ◽

Vol 30 (3) ◽

pp. 325 ◽

Cited By ~ 2

Author(s):

GL Muir ◽

WD Johnson

Keyword(s):

Major Ions ◽

New South ◽

New South Wales ◽

Mineral Weathering ◽

Chemical Characteristics ◽

South Wales ◽

Made In

Studies of the chemical characteristics of the Cudgegong River, N.S.W., were made in December 1974, November and December 1975 and January and June 1976. The concentrations of the major ions showed correlation with the geology of the catchment and the river's discharge. The order of dominance for ions in most of the river was found to be Mg2+ > Na+ > Ca2+ and HCO3- > Cl- > SO42-, but in the uppermost reaches of the river the order was Na+ > Mg2+ > Ca2+ and Cl- > HCO3- > SO42-. The origin and variation of ions, mineral weathering and ion-ion associations are discussed.

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Chemistry of the Castlereagh River, New South Wales

Marine and Freshwater Research ◽

10.1071/mf9770683 ◽

1977 ◽

Vol 28 (6) ◽

pp. 683 ◽

Cited By ~ 6

Author(s):

WD Johnson ◽

GL Muir

Keyword(s):

Catchment Area ◽

Major Ions ◽

New South ◽

New South Wales ◽

Chemical Species ◽

Chemical Characteristics ◽

South Wales ◽

Main River ◽

Made In

Preliminary studies of the chemical characteristics of the Castlereagh River were made in 1973. The concentrations of the major ions vary considerably with distance from the head of the river and this variation shows a marked correlation with the geology of the catchment area. The order of dominance for ions within the system was found to be Na+ > Ca2+ > Mg2+ > K+ and HCO3- > Cl- > SO42- for the main river, and creeks in the eastern catchment gave Mg2+ > Ca2+ > Na+ > K+ and Cl- > HCO3- > SO42-. The relative amounts of the dominant chemical species are discussed and suggestions are made for the possible origins of specific components.

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Study of coastal freshwater lakes in southern New South Wales

Marine and Freshwater Research ◽

10.1071/mf96049 ◽

1997 ◽

Vol 48 (3) ◽

pp. 249 ◽

Cited By ~ 7

Author(s):

B. V. Timms

Keyword(s):

Indicator Species ◽

New South ◽

New South Wales ◽

Coastal Dunes ◽

Coastal Dune ◽

Freshwater Lakes ◽

South Wales ◽

Dune Lakes ◽

Coastal Sand ◽

Southern Species

There are few freshwater lakes associated with coastal dunes in southern New South Wales (NSW). Lake Nargal near Narooma, Bondi Lake near Bega, and a small lagoon near Pambula have little in common limnologically with coastal dune lakes of northern NSW and southern Queensland. They differ in mode of origin, are less dominated by NaCl, are less acidic, are more speciose, have few characteristic dune-lake indicator species, and moreover contain certain southern species. However, a re-examination of data for Lakes Windermere and McKenzie further north at Jervis Bay suggest that these are classic dune-contact lakes rather similar to those in northern NSW. Differences and similarities are largely influenced by the extent and therefore the hydrological influence of the contextural coastal sand mass and by biogeography.

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