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Did changes in late Last Glacial and early Holocene atmospheric CO2 concentrations control rates of tufa precipitation?

Department of Genetics, University of Leeds, Mount Preston Street, Leeds LS2 9JT, UK

H. Martyn Pedley

School of Geography and Earth Resources, University of Hull, Cottingham Road, Hull HU6 7RX, UK

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.

Key Words: Tufa • travertine • carbonate precipitation • CO2 • palaeoclimate • Holocene.

The Holocene, Vol. 5, No. 2, 238-242 (1995)
DOI: 10.1177/095968369500500212


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