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We consider the time scales involved in reversal processes, including changes in reversal rates, how the time scales are measured and the current limitations on such measurements.
24 mar 2016 · Geomagnetic reversals are an extreme manifestation of the variability of the geomagnetic field created and sustained by dynamo action in Earth's core. This variability spans a vast range of time scales, from days to millions of years.
Geomagnetic Polarity Time Scale chapters in GTS2004 and GTS2012 by J.G. Ogg and A.G. Smith. The derivation of age-models for the C-sequence and the M-sequence of polarity chrons are new to...
3 sie 2020 · By investigating data of geomagnetic reversal rates, we find the presence of cycles with variable frequency and show that the transition towards periods where reversals do not occur for tens...
The Geomagnetic Polarity Time-Scale. Magnetic reversals have occurred frequently but irregularly during Earth history. The process of reversal seems to take about 4000–5000 years.
1 sty 2003 · Four models were obtained: (1) a mean field model for reversed polarity, (2) a mean field model for normal polarity, (3) a mean field model for the entire reversal, and (4) a time sequence...
18 sie 2020 · The synthesis of these data allows us to propose a working model of the Early Paleozoic geomagnetic polarity time scale which embodies the current knowledge about the character of changes in the geomagnetic field polarity on this interval of the geological time.
