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Effects of seafloor and laboratory dissolution on the Mg/Ca composition of Globigerinoides sacculifer and Orbulina universa tests - A laser ablation ICPMS microanalysis perspective

Sadekov, Aleksey; Eggins, Stephen; Klinkhammer, G; Rosenthal, Y


Partial or selective dissolution of planktonic foraminiferal tests on the seafloor has been shown to alter original test Mg/Ca compositions and thus may limit the accuracy of Mg/Ca-based thermometry for reconstructions of past sea surface temperatures. We have employed laser ablation ICPMS to determine the extent of dissolution-caused changes in Mg/Ca distribution across individual chamber walls of the planktonic foraminifera Globigerinoides sacculifer and Orbulina universa. G. sacculifer...[Show more]

CollectionsANU Research Publications
Date published: 2010
Type: Journal article
Source: Earth and Planetary Science Letters
DOI: 10.1016/j.epsl.2010.01.039


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