Mathematics – Logic
Scientific paper
Sep 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979e%26psl..44..383m&link_type=abstract
Earth and Planetary Science Letters, Volume 44, Issue 3, p. 383-389.
Mathematics
Logic
4
Scientific paper
A study of three North Atlantic cores, containing Radiolaria throughout their length and two correlative volcanic ash layers, shows that the radiolarian species Cycladophora davisiana goes through important relative abundance changes that appear to be synchronous over an area of more than 300,000 square miles during the late Pleistocene (⋍300,000 years). A comparison of the C. davisiana abundance changes with the oxygen isotope records in a North Atlantic and a subantarctic core strongly suggests that the C. davisiana fluctuations in the North Atlantic and Antarctic are also synchronous. Although the reason for the changes in the abundance of C. davisiana is not yet understood, the apparent synchroneity of these changes between the subantarctic and North Atlantic suggests a similarity of some related environmental factors. Also, Department of Geological Sciences, Columbia University in the City of New York, New York, NY 10027, U.S.A.
Hays James D.
Morley Joseph J.
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