Researchers look for links among paleoclimate events
Article first published online: 3 JUN 2011
©1997. American Geophysical Union. All Rights Reserved.
Eos, Transactions American Geophysical Union
Volume 78, Issue 24, pages 247–249, 17 June 1997
How to Cite
1997), Researchers look for links among paleoclimate events, Eos Trans. AGU, 78(24), 247–249, doi:10.1029/97EO00166., , , and (
- Issue published online: 3 JUN 2011
- Article first published online: 3 JUN 2011
Several peculiar features appear in climate-related records at about 8000 years BP and are occasionally referred to as the 8-ka events. For example, paleolake data from intertropical Africa show a drop in water levels [e.g., Gasse and Van Campo, 1994], and the Antarctic Byrd ice-core record reveals a decrease in atmospheric CO2 of about 40 ppm [Neftel et al., 1988]. Similarly, detailed paleoceanographic studies in the northwest North Atlantic reveal a decrease in primary productivity and burial rates of biogenic carbonates at precisely 8000 years BP [Hillaire-Marcel et al., 1994], and the oxygen and deuterium values in Greenland ice show at least one sharp and short-lived decrease [Johnsen et al., 1992].