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Mg/Ca paleothermometry in high salinity environments

Hoogakker, B.A.A.; Klinkhammer, G; Elderfield, H; Rohling, Eelco; Hayward, Chris

Description

Planktonic foraminiferal Mg/Ca ratios have become a fundamental temperature proxy in past climate reconstructions. However, in the highly evaporative seas of the tropics and subtropics, anomalously high planktonic foraminiferal Mg/Ca ratios arise, possibly linked to high salinities. The extent to which salinity affects Mg uptake into foraminiferal calcite remains disputed. Some studies suggest only minor salinity effects, whereas others suggest a dominant role. Here, we present new data from...[Show more]

CollectionsANU Research Publications
Date published: 2009
Type: Journal article
URI: http://hdl.handle.net/1885/80029
Source: Earth and Planetary Science Letters
DOI: 10.1016/j.epsl.2009.05.027

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