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Existing models of the Earth's core dynamo, which generates Earth's global magnetic field, are unable to explain its apparent longevity: it has existed for more than 3.4 billion years — most of ...
We show that disequilibrium models are as compatible with the geochemical observations as equilibrium models, yet still provide bounds on Earth’s accretion and core formation.
Take a glass hemisphere, fill with sulfuric acid, and rotate inside the world’s most powerful magnetic field. The result: a scale model of the dynamo that generates Earth’s magnetic field.
By recreating a miniature model of the Earth's inner core in the lab, the team was able to predict the properties and motion of these iron atoms.
Oceanic island hotspots — Hawaii and Iceland — are the final destinations of elemental isotopes from the beginnings of Earth, in concentrations found nowhere else on Earth’s crust. Until now, it was ...
For more than 100 years, scientists have puzzled over whether the Earth’s magnetic field had already been generated stably back in its early days when its inner core was fully liquid – unlike it is ...
These findings may explain why some experimental evidence has been inconsistent with our current models of Earth's structure.
Rubik's Cube In Center Of Earth? Computer Simulations Support New Model Of Earth's Core Date: February 11, 2008 Source: Uppsala University Summary: Swedish researchers have presented evidence in ...
The Earth's solid iron core is melting, and is perhaps more linked to activity on the planet's surface than previously believed.
New research suggests that Earth's 'solid' inner core is, in fact, endowed with a range of liquid, soft, and hard structures which vary across the top 150 miles of the inner core.
A new model explains how the newly born Earth's iron core formed as dribs and drabs of iron percolated inward from the planet's lower mantle.
Geomagnetic jerks match with sudden changes in the length of day, offering new insight into the workings of Earth's core.
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