A third superchron during the Early Paleozoic
By V. Pavlov, Y. Gallet. 2005
147 citations recorded by the source corpus.
Research on geomagnetic reversal chronology has established the existence of two superchrons, one during the Cretaceous and the other (Kiaman) during the Late Paleozoic. Over the past few years, we have performed several magnetostratigraphic studies on Early Paleozoic (Cambrian and Ordovician) sedimentary sequences from Siberia. Our results show high magnetic reversal frequencies during the Middle Cambrian. In contrast, several records show the occurrence of a ~20 Myr long reversed polarity interval in the Lower and Middle Ordovician, suggesting the presence of a third superchron. We propose to give the name of ´†Moyero†a to this new superchron; this name is attributed to the Siberian section which first yielded a complete record of this reversed polarity interval.
Subfields: Geology, Mechanics of Materials, Molecular Biology
View Paper: https://www.semanticscholar.org/paper/b773d3ce728e9342f4eacc4539c13b2fbeb2513c
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In Geology
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Citations in the corpus
- The Magnetic Field of Planet Earth (2010, background): “After Pavlov and Gallet (2005) (see e.g. Loper and McCartney 1986; Courtillot and Besse 1987; Larson and Olson 1991; Courtillot and Olson 2007).”
- Modelling the palaeo-evolution of the geodynamo (2009, background): “It should be noted however that the strongest signal on the reversal frequency curve is related to the irregular occurrence of superchrons (see for instance, Pavlov & Gallet 2005), where reversal frequency goes down to zero.”