Oxytropidoceras Posted January 28, 2019 Share Posted January 28, 2019 Earth's Magnetic Field Almost Collapsed 565 Million Years Ago Our planet's core probably started solidifying in the late Ediacaran period, which recharged the magnetic field in the nick of time. https://motherboard.vice.com/en_us/article/9kpywp/earths-magnetic-field-collapse-ediacaran-core-solidification https://www.newsweek.com/earth-magnetic-field-collapse-inner-core-solid-geodynamo-solar-wind-1307659 The (paywalled) papers are: Richard K. Bono, John A. Tarduno, Francis Nimmo & Rory D. Cottrell 2019. Young inner core inferred from Ediacaran ultra-low geomagnetic field intensity. Nature Geoscience 12, pages 143–147. https://www.nature.com/articles/s41561-018-0288-0 Peter Driscoll, Geodynamo recharged Nature Geoscience 12, pages 83–84 https://www.nature.com/articles/s41561-019-0301-2 It is strange how so many odd things occurred during the Ediacaran period. One question is how did this along with everything else did or did not affect evolution of plants and animals? Yours, Paul H. 6 Link to comment Share on other sites More sharing options...
FranzBernhard Posted January 29, 2019 Share Posted January 29, 2019 Thanks for posting this! 9 hours ago, Oxytropidoceras said: It is strange how so many odd things occurred during the Ediacaran period. Do you have these things at your hand? I would be very interested, what happened then. - low magnetic field - snowball earth (or later or earlier?) - evolution of multicelluar organisms. - ?? Thank you! 9 hours ago, Oxytropidoceras said: did or did not affect evolution of plants and animals? No magnetic field would increase mutation rate significantly, I think. Franz Bernhard 1 Link to comment Share on other sites More sharing options...
The Amateur Paleontologist Posted January 29, 2019 Share Posted January 29, 2019 Pity the paper is paywalled -Christian Opalised fossils are the best: a wonderful mix between paleontology and mineralogy! Q. Where do dinosaurs study? A. At Khaan Academy!... My ResearchGate profile Link to comment Share on other sites More sharing options...
marguy Posted January 29, 2019 Share Posted January 29, 2019 2 hours ago, FranzBernhard said: Do you have these things at your hand? I would be very interested, what happened then. - low magnetic field - snowball earth (or later or earlier?) - evolution of multicelluar organisms. - ?? a good book , but only in french langage for snowball earth, evolution of multicellular organisms: Abderrazak EL ALBANI, Roberto MACCHIARELLI, Alain MEUNIER : aux origines de la vie, une nouvelle histoire de l'évolution , ed. DUNOD, 2016 1 Link to comment Share on other sites More sharing options...
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