Behavior of major solutes during closed-basin brine evolution

Eügster, Hans P.; Jones, B. F.

doi:10.2475/ajs.279.6.609

Cited by 372 publications

(212 citation statements)

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“…Thus, the relationship of major cation and anion concentrations along the conductivity gradient (Figure 8) is consistent with predictions based on pathways of brine evolution in response to progressive evaporative concentration (Eugster & Jones, 1979). In regional groundwater, Ca concentrations are low relative to HCO 3 (Riffenburg, 1925), and thus Ca concentrations decline at high salinity, because Ca is depleted during evaporation via the precipitation of calcium carbonate.…”

Section: Discussionsupporting

confidence: 68%

Evaluating climatic and non-climatic influences on ion chemistry in natural and man-made lakes of Nebraska, USA

et al. 2007

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Section: Discussionsupporting

confidence: 68%

Evaluating climatic and non-climatic influences on ion chemistry in natural and man-made lakes of Nebraska, USA

et al. 2007

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“…Within the NGP, salinity and [CO 3 22 ] are fairly closely correlated (r 5 0.69, n 5 64, p , 0.001), although there is considerable scatter across the salinity gradient (Fig. 6), reflecting both local geology and (at higher salinity) selective carbonate precipitation (Eugster and Jones 1979). No lake with [CO 3 22 ] above ,250 mg L 21 contained well-preserved diatoms, including meromictic George Lake (Fig.…”

Section: Discussionmentioning

confidence: 99%

“…The dataset of 64 lakes (Fritz et al 1993) includes water bodies from 0.1 to 28 m deep and covers the salinity spectrum from subsaline (0.5-3 g L 21 total dissolved solids [TDS]) to hypersaline (.260 g L 21 TDS), with a mean salinity around 24 g L 21 TDS (Table 1). Due to preferential precipitation of carbonate with increasing total salinity (Eugster and Jones 1979), overall lake chemistry is predominantly Na-MgSO 4 , although carbonate-rich lakes are found at lower salinity. Chloride is the dominant anion in only one lake (Reflex) and is abundant in nine others (Table 1).…”

Section: Study Sitesmentioning

confidence: 99%

Physical and chemical predictors of diatom dissolution in freshwater and saline lake sediments in North America and West Greenland

et al. 2006

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Diatom dissolution in surface sediment samples from two regional lake datasets in the Northern Great Plains (NGP; n 5 64) and West Greenland (n 5 40) is assessed using a morphological approach categorizing valves during routine diatom analysis. Two dissolution indices are derived to parameterize diatom dissolution, and, when compared between two analysts in a blind test, show good correspondence and are closely correlated to diatom fragmentation. We explore the relationships between hydrochemical and physical lake parameters (including meromixis) on dissolution within both lake regions using multivariate methods and modeled with logistic regression. Salinity is the sole significant predictor of dissolution in West Greenland but salinity, carbonate concentration ([CO 3 22 ]) and meromixis are significant predictors in the NGP. Limnological parameters explain 40-59% of variation in dissolution in both regions for both dissolution indices. The dissolution index methodology is applied to a short sediment sequence from Devils Lake (North Dakota), where diatom-inferred salinity inferences can be compared with a historical record of salinity fluctuations over the 20th century. Absolute errors in paleosalinity estimates are strongly correlated with diatom dissolution, with salinity overestimated in 8 out of 11 poorly preserved samples. Preservation does appear to constrain the reliability of the inferred paleosalinity at this site and may also affect the quality of diatom-based paleoenvironmental inferences elsewhere (including estimates of biogenic silica), where preservation state is often not explicitly considered.

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“…The geochemical evolution of closedbasin water has been studied extensively, and some excellent overviews of the subject are available (see Eugster and Hardie, 1978;and Eugster and Jones, 1979). Brief consideration was given to the geochemical evolution of the surface water in the Carson Desert by Jones (1966).…”

Section: Aqueous Geochemistry Major Constituentsmentioning

confidence: 99%

Geohydrology, aqueous geochemistry, and thermal regime of the Soda Lakes and Upsal Hogback geothermal systems, Churchill County, Nevada

Olmsted¹,

Welch²,

Denburgh³

et al. 1984

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Behavior of major solutes during closed-basin brine evolution

Cited by 372 publications

References 0 publications

Evaluating climatic and non-climatic influences on ion chemistry in natural and man-made lakes of Nebraska, USA

Evaluating climatic and non-climatic influences on ion chemistry in natural and man-made lakes of Nebraska, USA

Physical and chemical predictors of diatom dissolution in freshwater and saline lake sediments in North America and West Greenland

Geohydrology, aqueous geochemistry, and thermal regime of the Soda Lakes and Upsal Hogback geothermal systems, Churchill County, Nevada

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