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Most Recent Reversal of Earth’s Magnetic Field Lasted 22,000 Years
sci-news.com ^ | 08/08/2019

Posted on 08/08/2019 2:00:05 PM PDT by BenLurkin

The researchers combined magnetic readings and radioisotope dating of samples from seven lava flow sequences to recreate the magnetic field over a span of about 70,000 years centered on the latest geomagnetic reversal.

They accurately dated the lava flows by measuring the argon produced from radioactive decay of potassium in the rocks.

They found that the final reversal was quick by geological standards, less than 4,000 years.

But it was preceded by an extended period of instability that included two excursions — temporary, partial reversals — stretching back another 18,000 years.

The lava flow data was corroborated by magnetic readings from the seafloor, which provides a more continuous but less precise source of data than lava rocks.

The scientists also used Antarctic ice cores to track the deposition of beryllium, which is produced by cosmic radiation colliding with the atmosphere.

When the magnetic field is reversing, it weakens and allows more radiation to strike the atmosphere, producing more beryllium.

Since humanity began recording the strength of the magnetic field, it has decreased in strength about 5% each century.

(Excerpt) Read more at sci-news.com ...


TOPICS: Science
KEYWORDS: antarctica; beryllium; catastrophism; magnetic; magneticfield; magnetism; poleshift; reversal
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1 posted on 08/08/2019 2:00:05 PM PDT by BenLurkin
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To: SunkenCiv

2 posted on 08/08/2019 2:01:54 PM PDT by BenLurkin (The above is not a statement of fact. It is either opinion or satire. Or both.)
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To: BenLurkin

Should I be putting my Compasses on E-Bay today?


3 posted on 08/08/2019 2:03:11 PM PDT by Paladin2
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To: BenLurkin

We need to urgently build more windmills and electric cars, or something.


4 posted on 08/08/2019 2:03:31 PM PDT by PGR88
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To: BenLurkin

HOw many centuries has man been keeping track of Magnetic
field strength??? 1 2?


5 posted on 08/08/2019 2:04:12 PM PDT by tet68 ( " We would not die in that man's company, that fears his fellowship to die with us...." Henry V.)
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To: BenLurkin; SunkenCiv
Ancient Tree With Record Of Earth's Magnetic Field Reversal In Its Rings Discovered
6 posted on 08/08/2019 2:07:50 PM PDT by blam
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To: tet68
"HOw many centuries has man been keeping track of Magnetic field strength??? 1 2?"

The field of that succka moves around too much as it is.

7 posted on 08/08/2019 2:10:24 PM PDT by Paladin2
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To: tet68

Uh, the magnetic field tracking is ridiculously easy to keep track of, unlike inferring temperature and atmospheric composition.
You just check rocks on the ocean floor, the iron hardens in the direction of the dominant magnetic field. They form visible stripes when you measure for it.


8 posted on 08/08/2019 2:14:06 PM PDT by Crazieman (Civil war is near certain now.)
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To: 75thOVI; Abathar; agrace; aimhigh; Alice in Wonderland; AnalogReigns; AndrewC; aragorn; ...
Thanks BenLurkin and blam. Turns out, the Earth is bipolar!



9 posted on 08/08/2019 2:14:08 PM PDT by SunkenCiv (Imagine an imaginary menagerie manager imagining managing an imaginary menagerie.)
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To: All

Lots of video’s on the pending Pole shift. The poles are moving very fast during the last 20 years or so. This guy has been monitoring the gravitational field all over the world. https://www.youtube.com/watch?v=Xl-UzALtq-A

Stock up on water, food is a good thing to do anyway. I have chickens so they feed off the land and provide protein. Water is harvested in barrels. I live in a high earth quake area so we likely will have a major one fairly soon. The pole shift will increase the likelihood of that happening.


10 posted on 08/08/2019 2:27:13 PM PDT by Coffee_drinker (Drain The Swamp.)
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To: BenLurkin

This is why racetracks call them “pole cars”...


11 posted on 08/08/2019 2:32:04 PM PDT by mrsmith (Dumb sluts: Lifeblood of the Media, Backbone of the Democrat/RINO Party!)
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To: Coffee_drinker

I fail to see how magnetic pole shift increases earthquakes.
The danger is increased solar and cosmic radiation.
Secondary stuff would be likely increased clouds (theory - on cosmic rays), and disruption of animal behavior that are magnetically sensitive (Especially birds)


12 posted on 08/08/2019 2:36:59 PM PDT by Crazieman (Civil war is near certain now.)
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To: BenLurkin

A global tax will fix everything.


13 posted on 08/08/2019 2:51:17 PM PDT by grumpygresh
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To: Crazieman

22,000 years - that’s close to the length of a magnus annus.
Is there a connection?

Is it known that there was a full reversal? Or was it just a tilt, then the earth starts to tilt back the other way?

Right now, the North Pole points toward Polaris. 5000 years ago it was pointing toward Thuban. 5000 years from now, it will be pointing toward Alderamin.


14 posted on 08/08/2019 3:05:53 PM PDT by scrabblehack
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To: Coffee_drinker

The poles have been “shifting any day now” since the 90s


15 posted on 08/08/2019 3:20:39 PM PDT by Nifster (I see puppy dogs in the clouds)
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To: Paladin2

I was thinking of investing in compass futures. Sales will be going through the roof.


16 posted on 08/08/2019 3:38:54 PM PDT by rightwingcrazy (;-)
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To: BenLurkin

Fortunately, tinfoil is reversible. But man, it’s gonna be a lot of work unfolding and straightening it all out for refolding ….


17 posted on 08/08/2019 3:43:54 PM PDT by sphinx
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To: mrsmith

18 posted on 08/08/2019 5:14:06 PM PDT by BenLurkin (The above is not a statement of fact. It is either opinion or satire. Or both.)
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To: BenLurkin

Good explanation of what’s going on with the poles and the weakening of the earth’s magnetic field by Ben Davidson of Suspicious Observers.

Some of the scoffers here should spend a few minutes watching this.

https://www.youtube.com/watch?v=sIayxqk0Ees


19 posted on 08/08/2019 5:32:52 PM PDT by Larry - Moe and Curly
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To: mrsmith

Does that mean NASCAR will race clockwise?


20 posted on 08/08/2019 6:30:08 PM PDT by orlop9
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