More proof that magnetic reversals cause extinctions

A new study published just last month ties magnetic reversals to mass extinctions.
This is exciting to me, because that’s what I’ve been saying for years in both Not by Fire but by Ice and Magnetic Reversals and Evolutionary Leaps.

The authors maintain that “evolution of life is affected by variations of atmospheric oxygen level and geomagnetic field intensity.’

Entitled “Oxygen escape from the Earth during geomagnetic reversals: Implications to mass extinction,” the new study found that geomagnetic field reversals “substantially” weaken the protection afforded by our atmosphere.

Because our magnetic field weakens during a polarity reversal, the authors propose that more oxygen ions are able to escape our atmosphere, which leads to mass extinctions. As they put it, “accumulated oxygen escape during an interval of increased reversal rate could have led to the catastrophic drop of oxygen level, which is known to be a cause of mass extinction.”

“Oxygen can escape into interplanetary space as ions after gaining momentum from solar wind, but Earth’s strong dipole field reduces the momentum transfer efficiency and the ion outflow rate, except for the time of geomagnetic polarity reversals when the field is significantly weakened in strength and becomes Mars-like in morphology.

The study, by Yong Wei et al., used a simulated oxygen escape rate on Mars to support their  hypothesis.

“A geomagnetic reversal could enhance the oxygen escape rate by 3–4 orders,” they found, suggesting a possible “correlation between geomagnetic reversals and mass extinction.”

See entire paper:
(Earth and Planetary Science Letters, 15 May 2014)
http://www.sciencedirect.com/science/article/pii/S0012821X14001629

Thanks to Skip’py for this link


Comments

More proof that magnetic reversals cause extinctions — 9 Comments

  1. Is there evidence of abrupt O2 decline? Radical ionising radiation during the neutral or chaotic phase of a reversal seems a more probable cause of deaths.

  2. Thus (as we do with spacecrafts and satellites) a proper MESH over Earth may SHIELD us against deadly celestial electricity that stimulates* magma, causing volcanic winters-ice-ages and magnetic pole reversals.
    *1. Explosive volcanic eruptions triggered by cosmic rays: Volcano as a bubble chamber
    Toshikazu Ebisuzaki, Hiroko Miyahara, Ryuho Kataoka, Tatsuhiko Sato, Yasuhiro Ishimine
    sciencedirect.com/science/article/pii/S1342937X10001966

    2. Abrupt onset of the Little Ice Age triggered by volcanism and sustained by sea-ice/ocean feedbacks Gifford H. Miller et al, GEOPHYSICAL RESEARCH LETTERS, VOL. 39, L02708, 2012 http://www.agu.org/pubs/crossref/2012/2011GL050168.shtml
    – I. Charvatova, J. Strestik, Geophysical Institute of the Czech Academy of Sciences
    “lower solar activity, occurrence of huge volcanic events and lower surface air temperature could be expected in the next decades”. http://rebel.ig.cas.cz/activities/Rocenka93-4/charv.htm
    – Stothers, R.B.: Volcanic eruptions and solar activity. J. Geophys. Res., 94, 17371-17381, doi:10.1029/JB094iB12p17371.

  3. I am a Japanese architect. Thank you for the valuable information in us it. We should plan the safety pair in a hurry. First of all, should I make a lot of shelters covered with mercury?

  4. So earth’s oxygen gets depleted during this time so how does it build up enough to support life? By raising the CO2 level to support restoring oxygen levels to the atmosphere. So are we contributing to our own extinction by trying to lower CO2 at a time when we should driving it up?

  5. I don’t buy that our atmosphere is magnetic. It is held in place by gravity. It would have to be full of iron to drift off because of reducing magnetism. We don’t breathe iron.

    • Up to several percent of our atmosphere is water vapour at any time.

      Water – H2o – is a polar molecule with the oxygen being strongly negative in charge with each hydrogen being positive. water has a bond angle of about 104 degrees which maintains this polar nature.

      These properties define many of water’s properties such as being a great solvent of ionic compounds such as salts for example whilst being a poor solvent on non ionised molecules such as long chain or aromatic hydrocarbons.

      This means water vapour is capable of interaction with magnetic fields as are all molecules in the atmosphere even if the interaction is less obvious than water vapour.

      I agree that it is principally gravity keeping our atmosphere bound to Earth but that does not preclude magnetic influences flowing through it.

      Our atmosphere is undoubtedly magnetic – there is absolute evidentiary and theoretical support for this.

    • Magnetic fields generate electricity, water is a conductor of electricity and oxygen is a component of water that will release 02 under the right conditions. Electric fields can and do hold water which holds oxygen. Right? There does seem to be some correlation.

      Maybe some brighter and more informed minds than mine can contribute .

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