By applying new data and Princeton's supercomputers to the classic question of what lies beneath our feet, Princeton seismologist Jessica Irving and an international team of colleagues have developed a new model for the Earth's ...
Earth Sciences
Jun 27, 2018
0
115
A new study by the University of Liverpool, in collaboration with the Universities of Lancaster and Oslo, sheds light on a longstanding question that has puzzled earth scientists.
Earth Sciences
Jun 5, 2018
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564
If you could travel back in time 41,000 years to the last ice age, your compass would point south instead of north. That's because for a period of a few hundred years, the Earth's magnetic field was reversed. These reversals ...
Earth Sciences
May 16, 2017
5
177
(Phys.org)—A team of researchers with the University of Edinburgh has found what they describe as evidence of a comet striking the Earth at approximately the same time as the onset of the Younger Dryas in carvings on an ...
New research from The University of Texas at Austin reveals that the Earth's unique iron composition isn't linked to the formation of the planet's core, calling into question a prevailing theory about the events that shaped ...
Earth Sciences
Feb 21, 2017
6
537
New work from a research team led by Carnegie's Anat Shahar contains some unexpected findings about iron chemistry under high-pressure conditions, such as those likely found in the Earth's core, where iron predominates and ...
Earth Sciences
Apr 28, 2016
0
33
The Earth's magnetic field permanently protects us from the charged particles and radiation that originate in the sun. This shield is produced by the geodynamo, the rapid motion of huge quantities of liquid iron alloy in ...
Earth Sciences
Mar 31, 2016
8
577
Earth's magnetic field is generated by the motion of liquid iron in the planet's core. This "geodynamo" occasionally reverses its polarity—the magnetic north and south poles swap places. The switch occurs over a few thousand ...
Earth Sciences
Feb 3, 2016
1
89
Scientists are studying past changes in sea level in order to make accurate future predictions of this consequence of climate change, and they're looking down to Earth's core to do so. "In order to fully understand the sea-level ...
Earth Sciences
Dec 11, 2015
8
2221
The most direct information about the interior of the earth comes from measuring how seismic acoustic waves—such as those created by earthquakes—travel through the earth. Those measurements show that 95% of the earth's ...
Earth Sciences
Nov 24, 2015
0
15
