Latest Paleomagnetism Stories
Imagine waking up after a night of camping to find that your compass is pointing south rather than north. It can happen. The magnetic field around Earth has flipped before — though not overnight. In fact, it has happened many times throughout the planet's history.
Geologic evidence shows the Earth's magnetic field flips about once every 450,000 years. The last reversal happened about 780,000 years ago, so looking at the average interval, we are overdue.
41,000 years ago, a complete and rapid reversal of the geomagnetic field occured.
Bylot Island, in the Canadian Nunavut territory, is one of the largest uninhabited islands in the world. A study by Alexandre Guertin-Pasquier of the University of Montreal's Department of Geography reveals that the ancient forests recently discovered on Bylot Island could one day return because of global climate changes.
A team of scientists has proposed a novel model for the generation of a global magnetic field in the ancient moon, which could help solve a decades-old mystery about the presence of magnetized rocks on the moon’s surface.
The Gondwana supercontinent underwent a 60-degree rotation across Earthâ€™s surface during the Early Cambrian period.
Princeton University scientists have shown that, in ancient times, the Earth's magnetic field was structured like the two-pole model of today, suggesting that the methods geoscientists use to reconstruct the geography of early land masses on the globe are accurate.
Ancient lava flows are guiding a better understanding of what generates and controls the Earth's magnetic field â€“ and what may drive it to occasionally reverse direction.
UC Davis researchers studying cores of sediment collected 40 years ago have found evidence for magnetic field vortices in the Earth's core beneath the South Pole. The results contrast with earlier studies at lower latitudes, and could lead to a better understanding of processes in the core.
Geophysicists at the University of Rochester announce in today's issue of Nature that the Earth's magnetic field was nearly as strong 3.2 billion years ago as it is today.
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