News tagged with continental crust
Oceanic crust formation is dynamic after all
Space & Earth / Earth Sciences
Nov 25, 2009 |
4.8 / 5 (9) |
0
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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Global warming likely to be amplified by slow changes to Earth systems
Space & Earth / Earth Sciences
12 hours ago |
2.6 / 5 (24) |
19
Researchers studying a period of high carbon dioxide levels and warm climate several million years ago have concluded that slow changes such as melting ice sheets amplified the initial warming caused by greenhouse gases.
Scientists discover fog on Titan
Space & Earth / Space Exploration
Dec 18, 2009 |
4.8 / 5 (9) |
2
Saturn's largest moon, Titan, looks to be the only place in the solar system—aside from our home planet, Earth—with copious quantities of liquid (largely, liquid methane and ethane) sitting on its surface. ...
New pictures reveal rich Antarctic marine life in area of rapid climate change
Dec 17, 2009 |
4.4 / 5 (9) |
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(PhysOrg.com) -- New photographs of ice fish, octopus, sea pigs, giant sea spiders, rare rays and beautiful basket stars that live in Antarctica’s continental shelf seas are revealed this week by the British ...
Pre-eruption earthquakes offer clues to volcano forecasters
Space & Earth / Earth Sciences
Dec 16, 2009 |
4.7 / 5 (3) |
1
Like an angry dog, a volcano growls before it bites, shaking the ground and getting "noisy" before erupting. This activity gives scientists an opportunity to study the tumult beneath a volcano and may help ...
From greenhouse to icehouse -- reconstructing the environment of the Voring Plateau
Space & Earth / Earth Sciences
Dec 15, 2009 |
4.1 / 5 (7) |
1
The analysis of microfossils found in ocean sediment cores is illuminating the environmental conditions that prevailed at high latitudes during a critical period of Earth history.
Late-surviving megafauna exposed by ancient DNA in frozen soil
Dec 15, 2009 |
4.5 / 5 (2) |
0
Extinct woolly mammoths and ancient American horses may have been grazing the North American steppe for several thousand years longer than previously thought. After plucking ancient DNA from frozen soil in ...
Valuable, rare, raw earth materials extracted from industrial waste stream
Dec 15, 2009 |
4.6 / 5 (9) |
5
Fierce competition over raw materials for new green technologies could become a thing of the past, thanks to a discovery by scientists from the University of Leeds.
Yellowstone's plumbing exposed
Space & Earth / Earth Sciences
Dec 14, 2009 |
4.8 / 5 (45) |
18
(PhysOrg.com) -- The most detailed seismic images yet published of the plumbing that feeds the Yellowstone supervolcano shows a plume of hot and molten rock rising at an angle from the northwest at a depth ...
French introduced farming to Britain: study
Other Sciences / Archaeology & Fossils
Dec 08, 2009 |
3.1 / 5 (7) |
6
(PhysOrg.com) -- Simon Fraser University archeologists Mark Collard and Kevan Edinborough and colleagues from University College London have uncovered evidence that French farmers introduced agriculture to Britain some 60 ...
New study cites lower rate of quakes along some subduction zones
Space & Earth / Earth Sciences
Dec 04, 2009 |
not rated yet |
0
Most earthquakes occur along fault lines, which form boundaries between two tectonic plates. As the relative speed of the plates around a fault increases, is there a corresponding increase in the number of earthquakes produced ...
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