Abstract
Gases trapped within Arctic, Antarctic and Greenland ice-cores document a dramatic increase in atmospheric CO2 levels (by almost 100%) in the period between the last glacial maximum and the late Holocene. The authors note an apparent correlation between increases in levels of atmospheric CO2 during this period and an episode of mass deposition of freshwater carbonate tufas and travertines. As changes in atmospheric CO2 levels are likely to affect carbonate deposition (Tucker and Wright, 1990), we propose the hypothesis that a relationship exists between increasing atmospheric CO2 levels and tufa deposition.
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