- Gauss-Matuyama reversal
The Gauss-Matuyama Reversal was a
geologic event approximately 2.588 million years ago when the Earth'smagnetic field underwent reversal.This event, which separates the
Piacenzian from theGelasian and marks the start of theQuaternary [http://www.inqua.tcd.ie/documents/QP%2016-1.pdf Clague, John "et al." (2006) "Open Letter by INQUA Executive Committee" "Quaternary Perspective, the INQUA Newsletter" International Union for Quaternary Research 16(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
ee also
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Geomagnetic reversal
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