Periodic mass extinctions and the sun's oscillation about the galactic plane

Details Periodic mass extinctions and the sun's oscillation about the galactic plane Periodic mass extinctions and the sun's oscillation about the galactic plane

Apr 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984natur.308..712s&link_type=abstract

Nature (ISSN 0028-0836), vol. 308, April 19, 1984, p. 712, 713.

Mathematics

Logic

41

Biological Evolution, Extinction, Solar Position, Solar System, Harmonic Oscillation, Paleontology, Earth, Extinction, Sun, Oscillations, Periodicity, Hypotheses, Motion, Time Scale, Calculations, Cosmic Rays, Radiation, Electromagnetic Effects

Scientific paper

A possible correlation between the 26-Myr extinction period reported by Raup and Sepkoski (1984) and the sun's oscillation about the galactic plane is pointed out. The extinction level for electromagnetic radiation in the 2 keV-01 eV range and the galactic cosmic ray distribution both change with distance from the galactic plane, and their possible role as agents of mass extinctions is briefly examined.

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