BlogArena

General blog about anything and everything of everyday's life.

25. Jun 2019

July 31, 2017
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New book by UW’s David R. Montgomery addresses how to rebuild Earth’s soils

In the introduction, University of Washington geologist David R. Montgomery writes that he never thought he’d write an optimistic book about the environment. Montgomery’s first popular book, “Dirt,” was about how erosion undermined ancient civilizations around the world in places … Continue reading

December 20, 2016
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Westerly winds have blown across central Asia for at least 42 million years

The gusting westerly winds that dominate the climate in central Asia, setting the pattern of dryness and location of central Asian deserts, have blown mostly unchanged for 42 million years.

May 25, 2014
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It could also work for Mars

Impact glass stores biodata for millions of years Bits of plant life encapsulated in molten glass by asteroid and comet impacts millions of years ago give geologists information about climate and life forms on the ancient Earth. Scientists exploring large … Continue reading

January 22, 2014
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Soil production breaks geologic speed record

Geologic time is shorthand for slow-paced. But new measurements from steep mountaintops in New Zealand shows that rock can transform into soil more than twice as fast as previously believed possible. The findings were published Jan. 16 in the early … Continue reading

March 19, 2013
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Under California: An ancient tectonic plate

The Isabella anomaly — indications of a large mass of cool, dehydrated material about 100 kilometers beneath central California — is in fact a surviving slab of the Farallon oceanic plate. Most of the Farallon plate was driven deep into … Continue reading

February 4, 2013
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Study Provides New Insights on Drought Predictions in East Africa

Research May Also Help Determine Effects of Global Warming in the Region With more than 40 million people living under exceptional drought conditions in East Africa, the ability to make accurate predictions of drought has never been more important. In … Continue reading

January 10, 2013
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Magma in Earth’s Mantle Forms Deeper Than Once Thought

Study simulating pressures in mantle beneath the ocean floor shows that rocks can melt at depths up to 250 kilometers Magma forms far deeper than geologists previously thought, according to new research results. A team led by geologist Rajdeep Dasgupta … Continue reading

November 1, 2012
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Asteroid Vesta Has Unique ‘Space Weathering’

Space weathering — a darkening of lunar surfaces by solar wind and metal nanoparticles from vaporized meteorites — appears to happen differently on Vesta, the largest body in the asteroid belt. The discovery, from NASA’s Dawn spacecraft, has planetary geologists … Continue reading