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ABSTRACT

Hajdas et al. 1998

Hajdas, I., G. Bonani, P. Bodén, D.M. Peteet, and D.H. Mann, 1998: Cold reversal on Kodiak Island, Alaska, correlated with the European younger Dryas by using variations of atmospheric 14C content. Geology, 26, 1047-1050.

High-resolution accelerator-mass-spectrometer radiocarbon dating was performed on late-glacial macrofossils in lake sediments from Kodiak Island, Alaska, and on shells in marine sediments from southwest Sweden. In both records, a dramatic drop in radiocarbon ages equivalent to a rise in the atmospheric 14C by ~70 ‰ coincides with the beginning of the cold period at 11000 yr B.P. (14C age). Thus, our results show that a close correlation between climate records around the globe is possible by using a global signature of changes in atmospheric 14C content.

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