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Martin et al. 1999

Martin, P.A., Lea, D.W., Mashiotta, T.A., Papenfuss, T. and Sarnthein, M. (1999). Variation of foraminiferal Sr/Ca over Quaternary glacial-interglacial cycles: Evidence for changes in mean ocean Sr/Ca?. Geochemistry Geophysics Geosystems 1: doi: 10.1029/1999GC000006. issn: 1525-2027.

Records of Sr/Ca changes in planktonic and benthic foraminifera from diverse hydrographic settings reveal coherent variability (5?1%) between ocean basins and between surface and deep waters over the past 300 kyr. There is a general increase in foraminiferal Sr/Ca over the penultimate glaciation declining to minimum values during stage 5 and an increase in Sr/Ca from stage 5 through stage 2. Coincident changes in benthic foraminifera records from the Atlantic and Pacific basins imply that Sr/Ca variations are not dominated by dissolution. Planktonic culturing data provide evidence that the downcore Sr/Ca variations are not controlled by temperature changes and suggest only a small influence of salinity and pH. Variation common to the records is most readily explained by changes in mean ocean Sr/Ca. If fossil foraminifera reliably record higher glacial seawater Sr/Ca, coral Sr paleothermometry would underestimate sea surface temperature during glacial episodes

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Keywords
Oceanography, General, Paleoceanography, Geochemistry, Marine geochemistry (4835, 4850), Geochemistry, Trace elements

Journal
Geochemistry Geophysics Geosystems

Publisher
American Geophysical Union
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