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Re: Study predicts bedrock weathering based on topography

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Sam Wormley <swormley1@gmail.com> wrote:
> Study predicts bedrock weathering based on topography
>> http://phys.org/news/2015-10-bedrock-weathering-based-topography.html

No need to post this cut and paste; this site has an RSS feed.

>> Just below Earth's surface, beneath the roots and soil, is a hard,
>> dense layer of bedrock that is the foundation for all life on land.
>> Cracks and fissures within bedrock provide pathways for air and
>> water, which chemically react to break up rock, ultimately creating
>> soil?an essential ingredient for all terrestrial organisms. This
>> weathering of bedrock is fundamental to life on Earth.
>>
>> Now scientists at MIT, the University of Wyoming, and elsewhere have
>> found a way to predict the spatial extent of bedrock weathering,
>> given a location's topography. The results are published today in the
>> journal Science.
>>
>> The group sought to estimate the depth to which bedrock is broken up,
>> or fractured. This fractured rock forms the base of a layer
>> scientists have dubbed Earth's "critical zone," where the interaction
>> of rock, air, and water allows life to thrive.
>>
>> The group developed a model that estimates the thickness of this
>> critical zone, given the forces generated by topography, gravity, and
>> plate tectonics. The researchers found that if a landscape is
>> undergoing little tectonic compression, the fractured zone should
>> parallel the overlying topography, like layers of lasagna. If,
>> however, a region is under high tectonic compression, the fractured
>> zone will resemble a mirror image of the landscape?thicker beneath
>> ridges, and thinner under valleys.

Why did you post this to a physics group when a geology group would
be the appropriate choice, shit head?

The people that want to discuss geology are reading geology groups,
spamming shit head.


-- 
Jim Pennino

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Study predicts bedrock weathering based on topography Sam Wormley <swormley1@gmail.com> - 2015-10-30 08:37 -0500
  Re: Study predicts bedrock weathering based on topography jimp@specsol.spam.sux.com - 2015-10-30 17:13 +0000

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