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Water World
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| Topic: Geology |
02/15/07 |
| Summary: Seismologists have created a new 3-D model that reveals the existence of an underground water reservoir deep in the Earth's mantle. The research could have implications in understanding our planet's global environment. |
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Mountains of Play-Doh
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| Topic: Geology |
02/12/07 |
| Summary: New research may help refine the accepted models used by earth scientists to describe the ways in which continents clash to form the Earth's landscape. |
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Earth's Early Temperature
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| Topic: Geology |
02/07/07 |
| Summary: Analysis of the world's oldest sedimentary rocks has shown that carbon dioxide, a greenhouse gas that has become a bane of modern society, may have saved Earth from freezing over early in the planet's history. |
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Catching an Underwater Eruption
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| Topic: Geology |
11/25/06 |
| Summary: Being in the right place at the right time allowed scientists to capture and record an undersea volcanic eruption. This provided a view of the death and birth of a mid-ocean ridge from various perspectives – geological, biological, and geophysical -- providing new insight into the inner workings of our planet. |
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Earth in the Balance
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| Topic: Geology |
08/30/06 |
| Summary: Imagine a shift in the Earth so profound that it could force our entire planet to spin on its side after a few million years, tilting it so far that Alaska would sit at the equator. Princeton scientists have now provided the first compelling evidence that this kind of major shift may have happened in our world's distant past. |
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Sulfur Stinks up Oxygen Theories
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| Topic: Geology |
08/24/06 |
| Summary: Ancient sediments that once resided on a lake bed and the ocean floor show sulfur isotope ratios unlike those found in other samples from the same time, calling into question accepted ideas about when the Earth's atmosphere began to contain oxygen, according to researchers from the U.S., Canada and Japan. |
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Jigsaw Earth
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| Topic: Geology |
05/25/06 |
| Summary: Like pieces in a giant jigsaw puzzle, continents have split, drifted and merged again many times throughout Earth's history, but geologists haven't understood the mechanism behind the moves. |
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Bobbing Mountains
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| Topic: Geology |
02/01/06 |
| Summary: Two new studies by a University of Rochester researcher show that mountain ranges rise to their height in as little as two million years--several times faster than geologists have always thought. Each of the findings came from two pioneering methods of measuring ancient mountain elevations, and the results are in tight agreement. |
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Sculpting Mountains
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| Topic: Geology |
12/16/05 |
| Summary: Glaciers, rivers and shifting tectonic plates have shaped mountains over millions of years, but earth scientists have struggled to understand the relative roles of these forces and the rates at which they work. |
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Early Earth with Crust Please
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| Topic: Geology |
11/23/05 |
| Summary: A surprising new study by an international team of researchers has concluded Earth's continents most likely were in place soon after the planet was formed, overturning a long-held theory that the early planet was either moon-like or dominated by oceans. |
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