Geomagnetic Reversals – Understanding Ancient Flips in Earth’s Polarity


http://earthchangesmedia.com/geomagnetic-reversals-understanding-ancient-flips-in-earths-polarity
Scientists know the polarity of the planet has in fact reversed at least six identified times, which has caused scientists to wonder not only how it’s happened, but why.

With the help of three types of magnetometers, the National Science Foundation (NSF) will unlock more of our…

Scientists know the polarity of the planet has in fact reversed at least six identified times, which has caused scientists to wonder not only how it’s happened, but why.

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With the help of three types of magnetometers, the National Science Foundation (NSF) will unlock more of our planet’s geomagnetic history that has been captured in our Earth’s crust.

Because the causes and impacts of these geomagnetic changes are unknown, connections to currents, weather patterns, and other geologic phenomenon are explored. Not surprisingly, this kind of oceanographic research is among some of the most fundamental, serving as a foundation for other research where it might correlate or illuminate.

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“The geomagnetic field is one of the major physical properties of planet Earth, and it is a very dynamic property that can change from milliseconds to millions of years. It is always changing,” said the expedition’s chief scientist, Masako Tominaga, an NSF-funded marine geophysicist from Michigan State University.

Earth’s geomagnetic field is a shield. It protects us from magnetic storms from our Sun’s solar rays and from galactic cosmic rays all of which can cause great harm. Our research will provide data to understand how changes in the geomagnetic field have occurred over time and give us very important clues to understand the planet Earth as a whole.

“The seafloor spreading at mid-ocean ridge occurred because of volcanic eruption over time. And when this molten lava formed the seafloor, it actually recorded ambient geomagnetic data. So when you go from the very young ocean seafloor right next to the mid-ocean ridge to very, very old seafloor away from the mid-ocean ridge, a magnetometer basically unveils changes in the geomagnetic field for us,” Tominaga said. “The closer we can get to the seafloor, the better the signal. That’s the rule of thumb for geophysics.”

Reportedly, the last time a geomagnetic reversal occurred was 780,000 years ago, known as the Brunhes-Matuyama reversal. However, data collected further back in time revealed that in fact, during the Jurassic period, magnetic reversals occurred much more quickly – perhaps within a 400 to 200 year period.

“The Jurassic period is very distinctive. We think that understanding this part of the geomagnetic field’s behavior can provide important clues for computer simulation where researchers have been trying to characterize this flipping and flopping. Our data could help predict future times when we might see this sort of rapid bouncing again.” says Tominaga.

Interestingly, historical records have shown points where the flipping seems likely to occur but then seems to change its mind, almost like a tease, where it returns to its original state. Those instances actually do occur on a shorter time scale than the full-fledged reversal. Again, scientists are looking for answers on why they occur as well.

For approximately three decades, researchers like Tominaga have been probing this area of the western Pacific seafloor. With her cruise on R/V Sikuliaq, Tominaga and Tivey come with even more technology in hand.

Thirty years ago, researchers didn’t have access to autonomous underwater vehicles (AUV) that could go to deeper, harder-to-reach ocean areas. However, that is just one of three ways Tominaga’s team will deploy three magnetometers during its time at sea. One magnetometer will work from aboard R/V Sikuliaq. Another will trail behind the ship, and the third will be part of the AUV.

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About Earth Changes Media w/ Mitch Battros

Mitch Battros is a scientific journalist who is highly respected in both the scientific and spiritual communities due to his unique ability to bridge the gap between modern science and ancient text. Founded in 1995 – Earth Changes TV was born with Battros as its creator and chief editor for his syndicated television show. In 2003, he switched to a weekly radio show as Earth Changes Media. ECM quickly found its way in becoming a top source for news and discoveries in the scientific fields of astrophysics, space weather, earth science, and ancient text. Seeing the need to venture beyond the Sun-Earth connection, in 2016 Battros advanced his studies which incorporates our galaxy Milky Way - and its seemingly rhythmic cycles directly connected to our Solar System, Sun, and Earth driven by the source of charged particles such as galactic cosmic rays, gamma rays, and solar rays. Now, "Science Of Cycles" is the vehicle which brings the latest cutting-edge discoveries confirming his published Equation.
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