News tagged with metallic core
X-rays of synthesized moon rocks illuminate the interior of the Moon
Contrary to Earth, our Moon has no active volcanoes, and the traces of its past volcanic activity date from billions of years ago. This is surprising, because recent Moonquake data suggest that there is plenty ...
Space & Earth / Space Exploration
Feb 19, 2012 |
4.5 / 5 (2) |
1
|
Building blocks of early Earth survived collision that created moon
Unexpected new findings by a University of Maryland team of geochemists show that some portions of the Earth's mantle (the rocky layer between Earth's metallic core and crust) formed when the planet was much smaller than it is now, an ...
Space & Earth / Earth Sciences
Feb 18, 2012 |
5 / 5 (5) |
6
Lab team develops capability for atomistic simulations
(PhysOrg.com) -- Conventional scientific wisdom says that the interatomic forces between ions that control high-temperature processes such as melting are insensitive to the heating of the electron "glue" that ...
Jan 27, 2012 |
5 / 5 (3) |
0
|
Plate tectonics may control reversals in the Earth's magnetic field
The Earth's magnetic field has reversed many times at an irregular rate throughout its history. Long periods without reversal have been interspersed with eras of frequent reversals. What is the reason for these reversals ...
Space & Earth / Earth Sciences
Oct 24, 2011 |
4 / 5 (1) |
19
Ocean floor muddies China's grip on '21st-century gold'
China's monopoly over rare-earth metals could be challenged by the discovery of massive deposits of these hi-tech minerals in mud on the Pacific floor, a study on Sunday suggests.
Space & Earth / Earth Sciences
Jul 03, 2011 |
4.9 / 5 (15) |
21
Coastal birds carry toxic ocean metals inland
A collaborative research team led by Queen's University biologists has found that potent metals like mercury and lead, ingested by Arctic seabirds feeding in the ocean, end up in the sediment of polar ponds.
May 25, 2010 |
5 / 5 (1) |
0
|
Dynamo theory: How small planets can have self-sustaining magnetic fields
The Earth's global magnetic field is generated in its metallic core, located nearly 3,000 kilometers beneath the planet’s surface. The field has existed on Earth for at least 3.5 billion years and offers clues ...
Space & Earth / Space Exploration
Mar 25, 2010 |
4.7 / 5 (15) |
4
|
