Gauss-Matuyama reversal
The Gauss-Matuyama Reversal was a geologic event approximately 2.58 million years ago when the Earth's magnetic field underwent reversal.
This event, which separates the Piacenzian from the Gelasian and marks the start of the Quaternary,[1] is useful in dating sediments.
Biological effects
The event is marked by the extinction of calcareous nannofossils Discoaster pentaradiatus and D. surculus, among others.
References
- ↑ Clague, John et al. (2006) "Open Letter by INQUA Executive Committee" Quaternary Perspective, the INQUA Newsletter International Union for Quaternary Research 16(1):
See also
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