Tags Geomagnetic

Tag: Geomagnetic

South Atlantic anomalies existed 8 – 11 million years ago

Research by the University of Liverpool has revealed that strange behaviour of the magnetic field in the South Atlantic region existed as far back...

How does Earth sustain its magnetic field?

How did the chemical makeup of our planet's core shape its geologic history and habitability? Life as we know it could not exist without Earth's...

Earth’s magnetic field can change 10 times faster than previously thought

A new study by the University of Leeds and University of California at San Diego reveals that changes in the direction of the Earth's...

The magnetic history of ice

The history of our planet has been written, among other things, in the periodic reversal of its magnetic poles. Scientists at the Weizmann Institute...

Origins of Earth’s magnetic field remain a mystery

Microscopic minerals excavated from an ancient outcrop of Jack Hills, in Western Australia, have been the subject of intense geological study, as they seem...

Researchers unravel the mystery of non-cotectic magmatic rocks

Researchers at Wits University in Johannesburg, South Africa, have found the answer to an enigma that has had geologists scratching their heads for years. The...

Earth’s Mantle, Not Its Core, May Have Generated Planet’s Early Magnetic...

New research lends credence to an unorthodox retelling of the story of early Earth first proposed by a geophysicist at Scripps Institution of Oceanography...

Earth’s last magnetic field reversal took far longer than once thought

Earth's magnetic field seems steady and true -- reliable enough to navigate by. Yet, largely hidden from daily life, the field drifts, waxes and wanes....

New findings on Earth’s magnetic field

The huge magnetic field which surrounds the Earth, protecting it from radiation and charged particles from space -- and which many animals even use...

Geomagnetic jerks finally reproduced and explained

Initially described in 1978, geomagnetic jerks are unpredictable events that abruptly accelerate the evolution of the Earth's magnetic field, and skew predictions of its...

Deep low-frequency earthquakes indicate migration of magmatic fluids beneath Laacher See...

Magma could rise from the upper mantle into the middle and upper crust beneath the Laacher See Volcano (Rhineland-Palatinate). This is the result of...

The complex history of Earth’s magnetic reversals

Throughout Earth's long geologic history, the magnetic pole has not remained stable. For reasons that are still little understood, the Earth's magnetic field can suddenly...

Earth’s magnetic field measured using artificial stars at 90 kilometers altitude

The mesosphere, at heights between 85 and 100 kilometers above the Earth's surface, contains a layer of atomic sodium. Astronomers use laser beams to...

Earth’s magnetic field is not about to reverse

A study of the most recent near-reversals of the Earth's magnetic field by an international team of researchers, including the University of Liverpool, has...

Magma ocean may be responsible for the moon’s early magnetic field

Around four billion years ago, the Moon had a magnetic field that was about as strong as Earth's magnetic field is today. How the...

New data helps explain recent fluctuations in Earth’s magnetic field

Using new data gathered from sites in southern Africa, University of Rochester researchers have extended their record of Earth's magnetic field back thousands of...

Mysterious ‘geomagnetic spike’ 3,000 years ago challenges our understanding of the...

The Earth's magnetic field, generated some 3,000km below our feet in the liquid iron core, threads through the whole planet and far into space...

Lunar dynamo’s lifetime extended by at least 1 billion years

New evidence from ancient lunar rocks suggests that an active dynamo once churned within the molten metallic core of the moon, generating a magnetic...

Nickel is crucial for Earth’s magnetic field

It only takes a simple compass to demonstrate that Earth has a magnetic field -- but it is quite difficult to explain how exactly...

Study finds Earth’s magnetic field ‘simpler than we thought’

Scientists have identified patterns in the Earth's magnetic field that evolve on the order of 1,000 years, providing new insight into how the field...

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