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Wind Shapes Planet's Surface
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| Topic: Geology |
03/30/11 |
| Summary: A new study shows that wind is a much more powerful force in shaping mountains than previously thought. |
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Oxygen Hogs Delayed Extinction Recovery
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| Topic: Geology |
03/27/11 |
| Summary: A new study shows that prolonged oxygen deprivation after Earth's largest-known mass extinction severly delayed the recovery of Earth's biosphere. The study provides new insight into the causes of this extended period of low oxygen levels. |
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Quartz is Key to Continent Shifts
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| Topic: Geology |
03/20/11 |
| Summary: A new study shows that quartz plays a key role in initiating the chain events that cause Earth's surface to crack, wrinkle, fold and stretch. The findings could help geologists understand the movements of tectonic plates and their effects on the environment of Earth. |
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New Study Finds Apex Fossils Aren´t Life
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| Topic: Geology |
03/17/11 |
| Summary: Scientists have been arguing for years about microscopic structures in 3.5-billion-year-old rocks: some think they are the earliest fossilized life yet found, while others see just geology. A new study says the structures are not fossils after all, and cautions that how we interpret such structures will affect our search for life beyond Earth. |
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Detecting Ancient Earthquakes
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| Topic: Geology |
03/16/11 |
| Summary: A new tool could help scientists learn from earthquakes of the ancient past to better predict earthquakes of the future. Studying earthquakes can provide astrobiologists with a better understanding of how the biosphere on Earth is linked to geological processes of the planet itself. |
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Earth's Core Provides Climate Insights
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| Topic: Geology |
03/13/11 |
| Summary: By studying the molten core of the planet Earth, scientists have uncovered new evidence that humans play a dominant role in changing Earth's climate. The study could have important implicaitons in understanding the future of life on our planet. |
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The Redox Revolution
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| Topic: Geology |
08/22/10 |
| Summary: Geologists studying the environment of the early Earth face many difficulties in interpreting the data they gather. One scientist believes 'denser sampling' and 'more judicious reading of rock samples' may help the community solve some of the biggest questions about our planet's history. |
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A Piece of Primitive Earth
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| Topic: Geology |
08/15/10 |
| Summary: Researchers have found a primitive Earth mantle reservoir on Baffin Island in the Canadian Arctic. The discovery will help researchers understand the composition of the original, early Earth. |
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Gondwana's Gyration
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| Topic: Geology |
08/13/10 |
| Summary: New data shows that the supercontinent, Gondwana, underwent a 60-degree rotation across Earth's surface during the Cambrian period. This continental movement may have had a profound effect on the evolution of Earth's biosphere and climate. |
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Glaciation that Snowballed
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| Topic: Geology |
05/02/10 |
| Summary: Climate change that occurred some 720 million years ago is providing scientists with insight into what can happen when the Earth's carbon cycle is altered. The research could help astrobiologists understand the history of Earth's climate and processes that could shape the future of life on our planet. |
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