It is not unusual for swarms of small earthquakes to precede a volcanic eruption. They can reach a point of such rapid succession that they create a signal called harmonic tremor that resembles sound made by various types ...
Earth Sciences
Jul 14, 2013
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(Phys.org) —Titanic forces in the Earth's crust explain why the abundance and richness of corals varies dramatically across the vast expanse of the Indian and Pacific Oceans, a world-first study from the ARC Centre of Excellence ...
Plants & Animals
May 22, 2013
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(Phys.org) —Scientists at Scripps Institution of Oceanography at UC San Diego have found a layer of liquefied molten rock in Earth's mantle that may be acting as a lubricant for the sliding motions of the planet's massive ...
Earth Sciences
Mar 20, 2013
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Early in the Moon's history an ocean of molten rock covered its entire surface. As that lunar magma ocean cooled over millions of years, it differentiated to form the Moon's crust and mantle. But according to a new analysis ...
Space Exploration
Mar 11, 2013
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A University of Utah seismologist analyzed seismic waves that bombarded Earth's core, and believes he got a look at the earliest roots of Earth's most cataclysmic kind of volcanic eruption. But don't worry. He says it won't ...
Earth Sciences
Feb 7, 2013
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With both x-ray and gamma-ray spectrometers, the MErcury Surface, Space ENvironment, GEochemistry and Ranging probe (MESSENGER), which entered orbit around Mercury in 2011, is well equipped for carrying out a detailed compositional ...
Space Exploration
Jan 29, 2013
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The remains of a high-caste man wearing armour who was buried by hot ash—possibly as he tried to calm the wrath of an erupting volcano—have been found in an area known as the "Pompeii of Japan".
Archaeology
Dec 18, 2012
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(Phys.org)—Researchers from Yale University have found that molten iron is able to penetrate into rock samples in a unique way under certain conditions. Geophysicist Shun-ichiro Karato and student Kazuhiko Otsuka together ...
(Phys.org)—Rocks dating back 3.4 billion years from south-west Greenland's Isua mountain range have yielded valuable information about the structure of the Earth during its earliest stages of development. In these rocks, ...
Earth Sciences
Nov 9, 2012
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Volcanic eruptions vary from common, small eruptions that have little impact on humans and the environment to rare, large-to-gigantic eruptions so massive they can threaten civilizations.
Earth Sciences
Oct 16, 2012
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