News tagged with continental crust
Oceanic crust formation is dynamic after all
Space & Earth / Earth Sciences
Nov 25, 2009 |
4.8 / 5 (9) |
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Imagine the Earth's crust as the planet's skin: Some areas are old and wrinkled while others have a fresher, more youthful sheen, as if they had been regularly lathered with lotion.
Bias in the rock record?
Space & Earth / Earth Sciences
Jan 14, 2009 |
3.8 / 5 (6) |
0
(PhysOrg.com) -- The fossil record is known to be biased by the unevenness of geographical and stratigraphical sampling, and the lack of exposed rocks containing fossils. In a recent Perspective in Science [2 Jan ...
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Scientists develop model to map continental margins
Sep 08, 2008 |
5 / 5 (1) |
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Scientists at the University of Liverpool have developed a new exploration method to assist the oil and gas industry in identifying more precisely where the oceans and continents meet.
Earth's crust melts easier than previously thought
Space & Earth / Earth Sciences
Mar 18, 2009 |
3.6 / 5 (14) |
5
A University of Missouri study published in Nature this week has found that the Earth's crust melts easier than previously thought. In the study, researchers measured how well rocks conduct heat at differ ...
How deep is Europe?
Space & Earth / Earth Sciences
Apr 30, 2008 |
4.2 / 5 (9) |
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The Earth's crust is, on global average around 40 kilometres deep. In relation to the total diameter of the Earth with approx. 12800 kilometres this appears to be rather shallow, but precisely these upper kilometres of the ...
Hot Fluids and Deep Earthquakes
Space & Earth / Earth Sciences
May 08, 2007 |
4 / 5 (9) |
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Fluids in the Earth's lower crust are an underlying force in shaking things up where continental plates slip under each other, according to a study recently published in Nature. Donna Eberhart-Phillips, a UC Davis researcher ...
Key component of Earth's crust formed from moving molten rock
Space & Earth / Earth Sciences
Mar 05, 2008 |
3.5 / 5 (19) |
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Earth scientists are in the business of backing into history -- extrapolating what happened millions of years ago based on what they can observe now. Using this method, a team of Cornell researchers has created ...
Half-baked asteroids have Earth-like crust
Space & Earth / Earth Sciences
Jan 07, 2009 |
4.7 / 5 (3) |
2
Asteroids are hunks of rock that orbit in the outer reaches of space, and scientists have generally assumed that their small size limited the types of rock that could form in their crusts. But two newly discovered ...
Diamonds reveal deep source of platinum deposits
Space & Earth / Earth Sciences
Jun 11, 2008 |
4.4 / 5 (21) |
1
The world's richest source of platinum and related metals is an enigmatic geological structure in South Africa known as the Bushveld Complex. This complex of ancient magmas is known to have formed some two ...
Ancient mineral shows early Earth climate tough on continents
Space & Earth / Earth Sciences
Jun 13, 2008 |
4.7 / 5 (31) |
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A new analysis of ancient minerals called zircons suggests that a harsh climate may have scoured and possibly even destroyed the surface of the Earth's earliest continents.
Researchers hope to use quakes to unlock secrets about Earth's crust
Space & Earth / Earth Sciences
Dec 14, 2006 |
3.3 / 5 (3) |
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Over the past several decades, the United States Government established the Global Seismographic Network to monitor nuclear explosions worldwide. That network has also proven to be a crucial source of information for geologists ...
First complete image created of Himalayan fault, subduction zone
Space & Earth / Earth Sciences
Sep 11, 2009 |
4.3 / 5 (7) |
1
An international team of researchers has created the most complete seismic image of the Earth's crust and upper mantle beneath the rugged Himalaya Mountains, in the process discovering some unusual geologic ...
List of search results for continental crust
