Comparison of a Greenland ice core oxygen isotope record and a record of the thickness of light laminae in a Cariaco Basin sediment core for the period 13,600 to 12,600 years ago. The oxygen isotope record provides information on changes in atmospheric temperature over Greenland, while the light-lamina thickness is a function of changes in productivity along the Venezuelan continental margin. The pattern of change on both records is very similar, with high productivity (thicker light laminae) occurring during periods of climatic cooling (lower oxygen isotope values).
[back]
|
