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Common Spectral Features in the 5500-Year Record of Total Carbonate in Sea Sediments and Radiocarbon in Tree Rings

Published online by Cambridge University Press:  18 July 2016

Giuliana Cini Castagnoli
Affiliation:
Istituto di Fisica Generale Università, Istituto di Cosmo-Geofisica, CNR, Corso Fiume 4 10133 Torino, Italy
Giuseppe Bonino
Affiliation:
Istituto di Fisica Generale Università, Istituto di Cosmo-Geofisica, CNR, Corso Fiume 4 10133 Torino, Italy
Marina Serio
Affiliation:
Istituto di Fisica Generale Università, Istituto di Cosmo-Geofisica, CNR, Corso Fiume 4 10133 Torino, Italy
Charles P. Sonett
Affiliation:
Department of Planetary Sciences, Lunar and Planetary Laboratory, The University of Arizona Tucson, Arizona 85721 USA
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Abstract

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We analyze here the time record of total carbonate carried as CaCO3 in a sea-bottom core from the Ionian Sea. Several major periods appear, most strongly at 1100, 690, 500, 340, 250 and 90 yr, confirmed both in the periodogram and maximum entropy estimates. The Gleissberg period appears in common with the 14C and other records, such as the sunspot index and aurorae. The manifestation of this period in what we surmise to be a climatic record is further evidence that the Gleissberg period has correlated bolometric and electrodynamic aspects.

Type
IV. Paleoclimatology
Copyright
Copyright © The American Journal of Science 

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