Abstract

The partition coeffi cients (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 ! Mg/! Ca of the ambient waters. Strongly alkaline and very high ! Mg/! Ca (>>20) waters cause the partition coeffi cients of ostracodes to differ signifi cantly from those found in other lakes with lower ! Mg/! Ca values. Water salinity does not affect the uptake of Mg or Sr in ostracode valves, whereas the ! HCO 3 ‐ of the water strongly correlates to K D [Sr], with high ! HCO 3 ‐ resulting in a signifi

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