In January 2011, aboard a scientific drilling ship in the Pacific Ocean, I witnessed an enigmatic green flash before sunrise. This optical phenomenon has been recorded to occur if the conditions are just right – clean, ...
Earth Sciences
Jan 28, 2014
0
0
(Phys.org) —A team of researchers from Université Paris Diderot has found evidence that contradicts the prevailing view among scientists that virtually all of the sulfur found in the Earth's mantle came from chondrites. ...
Scientists have long believed that lava erupted from certain oceanic volcanoes contains materials from the early Earth's crust. But decisive evidence for this phenomenon has proven elusive. New research from a team including ...
Earth Sciences
Apr 24, 2013
0
2
(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
3
0
(Phys.org)—Exoplanet hunters estimate that there could be billions of super-Earths—planets with a mass of up to ten times that of Earth—orbiting stars in the Milky Way alone. But do super-Earths really deserve their ...
Astronomy
Sep 25, 2012
27
0
(Phys.org)—Debate over how and where oceanic island chains, like Hawaii, form, is at an end according to an academic from The Australian National University.
Earth Sciences
Sep 17, 2012
0
0
(Phys.org) -- The influence of the ground beneath us on the air around us could be greater than scientists had previously thought, according to new research that links the long-ago proliferation of oxygen in Earth's atmosphere ...
Earth Sciences
May 23, 2012
3
0
A superplume, or massive episode of volcanic eruptions that related to extensive melting of the Earth's mantle, could explain the puzzling reappearance of major iron formations long after the rise in atmospheric oxygen about ...
Earth Sciences
Apr 27, 2012
0
0
(Phys.org) -- Defects found in rocks below the Earth’s surface have a major impact on the transmission of seismic waves, such as those caused by earthquakes, researchers at The Australian National University have discovered.
Earth Sciences
Apr 23, 2012
0
0
Scientists have long speculated about why there is a large change in the strength of rocks that lie at the boundary between two layers immediately under Earth's crust: the lithosphere and underlying asthenosphere. Understanding ...
Earth Sciences
Mar 22, 2012
0
0
