Alkalinity control on the partition coefficients in lacustrine ostracodes from Australia

Chris Gouramanis; Patrick de Deckker

doi:10.1130/G30235.1

Alkalinity control on the partition coefficients in lacustrine ostracodes from Australia

Chris Gouramanis^*, Patrick de Deckker

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

19 Citations (Scopus)

Abstract

The partition coefficients (K_D) guiding the uptake of Mg and Sr in the low-Mg calcite valves of ostracodes in Australian saline lakes have been reviewed in line with new information on the bicarbonate content and the αMg/αCa of the ambient waters. Strongly alkaline and very high αMg/αCa (>>20) waters cause the partition coefficients of ostracodes to differ significantly from those found in other lakes with lower αMg/αCa values. Water salinity does not affect the uptake of Mg or Sr in ostracode valves, whereas the αHCO₃^- of the water strongly correlates to K_D[Sr], with high αHCO₃^- resulting in a significant K_D[Sr] decrease.

Original language	English
Pages (from-to)	359-362
Number of pages	4
Journal	Geology
Volume	38
Issue number	4
DOIs	https://doi.org/10.1130/G30235.1
Publication status	Published - Apr 2010

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10.1130/G30235.1

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title = "Alkalinity control on the partition coefficients in lacustrine ostracodes from Australia",

abstract = "The partition coefficients (KD) guiding the uptake of Mg and Sr in the low-Mg calcite valves of ostracodes in Australian saline lakes have been reviewed in line with new information on the bicarbonate content and the αMg/αCa of the ambient waters. Strongly alkaline and very high αMg/αCa (>>20) waters cause the partition coefficients of ostracodes to differ significantly from those found in other lakes with lower αMg/αCa values. Water salinity does not affect the uptake of Mg or Sr in ostracode valves, whereas the αHCO3- of the water strongly correlates to KD[Sr], with high αHCO3- resulting in a significant KD[Sr] decrease.",

author = "Chris Gouramanis and {de Deckker}, Patrick",

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doi = "10.1130/G30235.1",

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pages = "359--362",

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AU - Gouramanis, Chris

AU - de Deckker, Patrick

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N2 - The partition coefficients (KD) guiding the uptake of Mg and Sr in the low-Mg calcite valves of ostracodes in Australian saline lakes have been reviewed in line with new information on the bicarbonate content and the αMg/αCa of the ambient waters. Strongly alkaline and very high αMg/αCa (>>20) waters cause the partition coefficients of ostracodes to differ significantly from those found in other lakes with lower αMg/αCa values. Water salinity does not affect the uptake of Mg or Sr in ostracode valves, whereas the αHCO3- of the water strongly correlates to KD[Sr], with high αHCO3- resulting in a significant KD[Sr] decrease.

AB - The partition coefficients (KD) guiding the uptake of Mg and Sr in the low-Mg calcite valves of ostracodes in Australian saline lakes have been reviewed in line with new information on the bicarbonate content and the αMg/αCa of the ambient waters. Strongly alkaline and very high αMg/αCa (>>20) waters cause the partition coefficients of ostracodes to differ significantly from those found in other lakes with lower αMg/αCa values. Water salinity does not affect the uptake of Mg or Sr in ostracode valves, whereas the αHCO3- of the water strongly correlates to KD[Sr], with high αHCO3- resulting in a significant KD[Sr] decrease.

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U2 - 10.1130/G30235.1

DO - 10.1130/G30235.1

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VL - 38

SP - 359

EP - 362

JO - Geology

JF - Geology

IS - 4

ER -

Alkalinity control on the partition coefficients in lacustrine ostracodes from Australia

Abstract

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