News tagged with earths core
Ironing out the details of the Earth's core
(PhysOrg.com) -- Identifying the composition of the earth's core is key to understanding how our planet formed and the current behavior of its interior. While it has been known for many years that iron is ...
Space & Earth / Earth Sciences
Dec 20, 2011 |
4.9 / 5 (11) |
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Debut of chromium signatures clocks great oxidation event
Banded ironstone core samples from the Pilbara have aided in dating the first appearance of atmospheric oxygen at 2.48 billion years ago.
Space & Earth / Earth Sciences
Nov 25, 2011 |
5 / 5 (3) |
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From the Earth to the Moon: Resolving estimates of proto-Earth accretion with lunar-forming impact
(PhysOrg.com) -- One of the more challenging fields of scientific inquiry is planetary formation – and most relevant is that of our own Earth and Moon. The current view, based on chronometry (scientific ...
Nov 14, 2011 |
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How old is the Earth's core? Maybe older than you thought
(PhysOrg.com) -- Another discovery by a Michigan Technological University researcher could send shockwaves across the world of earth science.
Space & Earth / Earth Sciences
Nov 12, 2011 |
4.7 / 5 (23) |
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What keeps the Earth cooking?
What spreads the sea floors and moves the continents? What melts iron in the outer core and enables the Earth's magnetic field? Heat. Geologists have used temperature measurements from more than 20,000 boreholes ...
Jul 17, 2011 |
4.6 / 5 (24) |
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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
Earth's inner core is melting... and freezing
The inner core of the Earth is simultaneously melting and freezing due to circulation of heat in the overlying rocky mantle, according to new research from the University of Leeds, UC San Diego and the Indian ...
Space & Earth / Earth Sciences
May 18, 2011 |
4.6 / 5 (13) |
10
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Going to Earth's core for climate insights
(PhysOrg.com) -- The latest evidence of the dominant role humans play in changing Earth's climate comes not from observations of Earth's ocean, atmosphere or land surface, but from deep within its molten core.
Space & Earth / Earth Sciences
Mar 10, 2011 |
4.2 / 5 (18) |
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Earth's core rotating faster than rest of the planet but slower than previously believed
New research gives the first accurate estimate of how much faster the Earth's core is rotating compared to the rest of the planet.
Space & Earth / Earth Sciences
Feb 20, 2011 |
4.3 / 5 (27) |
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Antarctic sea temperatures cooled in Holocene but now rising: study
(PhysOrg.com) -- A new study of an ocean sediment core taken from deep water off the coast of the western Antarctic Peninsula is beginning to fill in some of the gaps in our knowledge of climate variability ...
Space & Earth / Earth Sciences
Feb 10, 2011 |
4.2 / 5 (18) |
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The hunt for the lunar core: Deep interior of moon resembles Earth's core
(PhysOrg.com) -- The Moon, Earth's closest neighbor, has long been studied to help us better understand our own planet. Of particular interest is the lunar interior, which could hold clues to its ancient origins. ...
Space & Earth / Space Exploration
Jan 06, 2011 |
5 / 5 (10) |
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First measurement of magnetic field in Earth's core
(PhysOrg.com) -- A University of California, Berkeley, geophysicist has made the first-ever measurement of the strength of the magnetic field inside Earth's core, 1,800 miles underground.
Space & Earth / Earth Sciences
Dec 16, 2010 |
4.9 / 5 (19) |
10
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Gradients in the Earth's outermost core
Evidence that the outermost portion of the Earth’s core is stratified is provided by earthquake data reported by scientists at the University of Bristol this week in Nature.
Space & Earth / Earth Sciences
Dec 08, 2010 |
3.8 / 5 (4) |
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Planetary magnetic fields: The hunt for better models
Some three thousand kilometers below the surface of the Earth and with temperatures reaching those at the surface of the sun, the core of our home planet is no more within our physical reach today than it ...
Space & Earth / Space Exploration
Nov 25, 2010 |
4.9 / 5 (10) |
4
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Scientists probe Earth's core
We know more about distant galaxies than we do about the interior of our own planet. However, by observing distant earthquakes, researchers at the University of Calgary have revealed new clues about the top ...
Space & Earth / Earth Sciences
Apr 28, 2010 |
4.4 / 5 (20) |
4
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