Computer Science
Scientific paper
May 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990e%26psl..98..166p&link_type=abstract
Earth and Planetary Science Letters, Volume 98, Issue 2, p. 166-174.
Computer Science
18
Scientific paper
A statistical analysis of the time variations of the frequency of explosive events is derived from the detailed record of marine tephra in deep-sea sediment cores of the central Mediterranean Sea. The sequence of Campanian events (South Italy) shows several volcanic pulses during the past 190,000 years which were compared to the continental data. These episodes, which match the different phases of the geochemical evolution of magmas in this area, occurred with a 23 kyr periodicity. This may be related to the life time of the magma chambers involved in this area. With such time cycles, precessional forcing of the volcanic activity and/or glacio-eustatic pressure variations may be envisaged as causal phenomena.
Guichard Francois
Labeyrie Jacques
Maitre F.
Mazaud Alain
Paterne Martine
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