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Broecker & Sutherland 2000

Broecker, W.S. and Sutherland, S. (2000). Distribution of carbonate ion in the deep ocean: Support for a post-Little Ice Age change in Southern Ocean ventilation?. Geochemistry Geophysics Geosystems 1. doi: 10.1029/2000GC000039. issn: 1525-2027.

The distribution of CO3= ion concentrations in the deep sea proves difficult to reconcile with a steady state thermohaline circulation. The problem is that assuming steady state, we cannot come up with any satisfactory explanation for the 28 (micro)mol/kg deficiency of CO3= ion concentration in deep Pacific and Indian Ocean water relative to that for the source water mix. However, following Broecker et al. <1999>, if we assume that during the Little Ice Age, deep water formation in the Southern Ocean was not only much stronger than now but also had lower PO4* and CO3= concentrations, then this anomaly can be explained.

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Keywords
Geochemistry, Geochemical cycles, Geochemistry, Low-temperature geochemistry, Geochemistry, Marine geochemistry

Journal
Geochemistry Geophysics Geosystems

Publisher
American Geophysical Union
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