US EditionTwo Huge Hot Blobs of Rock Influence Earth's Magnetic Field, Study Reveals
Massive, superheated rock formations at the core-mantle boundary influence Earth's magnetic field patterns over 265 million years, altering the geodynamo, researchers say.
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5 Articles
How giant ‘Blobs’ of rock have influenced Earth’s magnetic field for millions of years – new research
Kyrylo Glivin/ShutterstockWhile we have sent probes billions of kilometres into interstellar space, humans have barely scratched the surface of our own planet, not even making it through the thin crust. Information about Earth’s deep interior comes mainly from geophysics and is at a premium. We know it consists of a solid crust, a rocky mantle, a liquid outer core and solid inner core. But what precisely goes on in each layer – and between them …
Two Continent-Sized Hot Blobs Deep Inside Earth Help Shape Our Magnetic Shield
Right now, the Sun is firing charged particles at Earth like a cosmic shotgun, traveling at more than a million miles per hour. The post Two Continent-Sized Hot Blobs Deep Inside Earth Help Shape Our Magnetic Shield appeared first on StudyFinds.
Two huge hot blobs of rock influence Earth's magnetic field, study reveals
Exploring Earth's deep interior is a far bigger challenge than exploring the solar system. While we have traveled 25 billion km into space, the deepest we have ever gone below our feet is just over 12 km. Consequently, little is known about the conditions at the base of the mantle and the top of the core—the most significant interface in Earth's interior and the region where new research has now uncovered exciting magnetic activity.
Something Massive Deep Inside Earth Is Steering the Planet’s Magnetic Field
Hidden mega-structures deep inside Earth may have been quietly steering our planet’s magnetic field—and rewriting what we thought we knew about Earth’s past. Peering into Earth’s interior is far more difficult than exploring space. Humans have traveled about 25 billion km beyond our planet, yet the deepest drill hole ever made reaches just over 12 [...]
The international community of geophysicists has established that large-scale anomalous structures in the Earth's mantle over the past 265 million years have played a key role in shaping the configuration and strength of our planet's magnetic shield. The study focused on the so-called LLSVP regions—colossal irregularities in the lower mantle, located beneath the African continent and the Pacific Ocean and comparable in size to... The post "New a…
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