The Geomagnetic Field during Palaeozoic Time

A. N. KHRAMOV, V. P. RODIONOV
1980 Journal of geomagnetism and geoelectricity  
The Palaeozoic reversal sequence is represented by complex rhythms with characteristic times of (5-7) x 10', (1-4) x 10' and (1-2) x 106 y. The first order units recognized are Arginian (R) 590-535 m.y., Siberian (Rn) 535-485 m.y., Baikalian (Nr) 485-430 m.y., Sayanian (Rn) 430-360 m.y., Donetsk (Rn) 360-300 m.y., Kiaman (R) 300-240 m.y., and Illawarra (NR) 240-215 m.y.
doi:10.5636/jgg.32.supplement3_siii99 fatcat:npvwvqq3c5d4rls3fiw6wzwl6y