Scientists link rapid geomagnetic field reversal, climate change, and supervolcanic eruptions to same geological time period

October 17, 2012GEOLOGY - An extremely brief reversal of the geomagnetic field, climate variability and a supervolcanic eruption. 41,000 years ago, a complete and rapid reversal of the geomagnetic field occurred. Magnetic studies of the GFZ German Research Centre for Geosciences on sediment cores from the Black Sea show that during this period, during the last ice age, a compass at the Black Sea would have pointed to the south instead of north. Moreover, data obtained by the research team formed around GFZ researchers Dr. Norbert Nowaczyk and Prof. Helge Arz, together with additional data from other studies in the North Atlantic, the South Pacific and Hawaii, prove that this polarity reversal was a global event. Their results are published in the latest issue of the scientific journal “Earth and Planetary Science Letters.” What is remarkable is the speed of the reversal: “The field geometry of reversed polarity, with field lines pointing into the opposite direction when compared to today’s configuration, lasted for only about 440 years, and it was associated with a field strength that was only one quarter of today’s field,” explains Norbert Nowaczyk. “The actual polarity changes lasted only 250 years. In terms of geological time scales, that is very fast.” During this period, the field was even weaker, with only 5% of today’s field strength. As a consequence, the Earth nearly completely lost its protection shield against hard cosmic rays, leading to a significantly increased radiation exposure. This is documented by peaks of radioactive beryllium (10Be) in ice cores from this time, recovered from the Greenland ice sheet. 10Be as well as radioactive carbon (14C) is caused by the collision of high-energy protons from space with atoms of the atmosphere. The polarity reversal now found with the magnetisation of Black Sea sediments has already been known for 45 years. It was first discovered after the analysis of the magnetisation of several lava flows near the village Laschamp near Clermont-Ferrand in the Massif Central, which differed significantly from today’s direction of the geomagnetic field. Since then, this geomagnetic feature is known as the ‘Laschamp event.’ However, the data of the Massif Central represent only some point readings of the geomagnetic field during the last ice age, whereas the new data from the Black Sea give a complete image of geomagnetic field variability at a high temporal resolution. Besides giving evidence for a geomagnetic field reversal 41,000 years ago, the geoscientists from Potsdam discovered numerous abrupt climate changes during the last ice age in the analyzed cores from the Black Sea, as it was already known from the Greenland ice cores. This ultimately allowed a high precision synchronization of the two data records from the Black Sea and Greenland. The largest volcanic eruption on the Northern hemisphere in the past 100 000 years, namely the eruption of the super volcano 39400 years ago in the area of today’s Phlegraean Fields near Naples, Italy, is also documented within the studied sediments from the Black Sea. The ashes of this eruption, during which about 350 cubic kilometers of rock and lava were ejected, were distributed over the entire eastern Mediterranean and up to central Russia. These three extreme scenarios, a short and fast reversal of the Earth’s magnetic field, short-term climate variability of the last ice age and the volcanic eruption in Italy, have been investigated for the first time in a single geological archive and placed in precise chronological order. –Science Codex
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This entry was posted in 2012, Civilizations unraveling, Dark Ages, Earth Changes, Earth Watch, Earthquake Omens?, High-risk potential hazard zone, Magma Plume activity, Potential Earthchange hotspot, Prophecies referenced, Seismic tremors, Signs of Magnetic Field weakening, Time - Event Acceleration, Volcanic Eruption. Bookmark the permalink.

11 Responses to Scientists link rapid geomagnetic field reversal, climate change, and supervolcanic eruptions to same geological time period

  1. TNO says:

    It’s a serious pattern we can’t ignore. Here is another article written about the same type of climate disaster based on core samples taken from around the world. The author based her timeframe on the Mayan calendar of 5200 years ago. Quite eye opening.

    Get ready folks for a wild earth ride, hope some of us make it through alive.

  2. tonic says:

    Most of this is already in TEP. Any real news?

  3. Pete S. says:

    Is it safe to assume that our current climate change, wondering poles and significant volcanic activity are strong indicators of this happening again, right now?

    • That basically summarizes what I said in the Wiser Now October interview about Extinction Level Events: “The planet’s magnetic field strength declines, there is magnetic polarity deviation or migration, earthquakes and volcanic eruptions increase, there are changes in ocean temperature and salinity, and the climate basically unravels. This is underscored by an expansion of magma and rise in convection in the planet’s mantle. The earth’s crust experienced the most violence in the Pacific Ring of Fire from catastrophic rupturing when there was a magmatic expansion of the planet. As I wrote in The 7th Protocol, the first time the planet had a magmatic expansion, the fountains of the great deep were broken up and geysers of hot water destroyed the world by a flood. The rupture was very pronounced in the Pacific basin, which is why the underlying geology is so fractured, and why the region is now so seismically and volcanically active. Another massive fissure occurred along the Mid-Atlantic Ridge, which almost cracked the crust of the planet in two. The first magmatic expansion released the fountains of water from the deep. The next expansion will unleash the magma from faults, cracks, and plumes already present in the crust. Volcanoes are erupting en masse, and will continue to do so to dissipate the build-up of thermal pressure in an attempt to prevent a catastrophe. If the planet’s heat cycle cannot be consoled by planetary geologic processes, the spectrum tilts toward an Extinction Level Event (ELE). Consequently, volcanoes also are our first telltale sign that something has gone awry with the planet. We’re witnessing evidence of another magmatic expansion across the planet, with near simultaneous ground inflation occurring from magma intrusion at Yellowstone, Long Valley, Uturuncu in Bolivia, El Hierro in the Canary Islands, Santorini in Greece, Marsili in the Tyrrhenian Sea, Katla in Iceland, and the ground around Mt. Fuji in Japan. These are the early warning signs, along with increased seismicity along tectonic plate boundaries (especially in subduction zones), that something is amiss. No part of the planet will be left unscathed from these changes.” – Wiser Now, October 2012 – Earthchanges coming, Ready or Not – IPAD Mag APP

  4. Judy Carriker says:

    Wow! Very interesting.

  5. me says:

    You say early warning signs… How long can we have? There are so many signs. Are we close enough that December is it, the ELE? Or will we stagger on til 2015?? or further??? I just keep feeling we can’t sustain much longer.

    • IMG

      December 2012 is not the date but it will stagger, as events unfold and conditions of stability on the planet grow progressively worse. I warned all of this would happen years ago and science is just beginning to confirm many of the theorems that underline some of the current changes we’re beginning to see… and what the readers have known about, and been following for years. The deterioration will be rapid and will eclipsed by a series of major catastrophic events that will strike across the planet.

  6. TNO says:

    When the northern hemisphere volcanoes erupt, it’s all over.

  7. Patricia says:

    Thanks a ton! It is an astonishing online site.

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