Posted on 09/25/2015 2:28:37 PM PDT by JimSEA
New research led by Dr Hauke Marquardt of the University of Bayreuth, Germany, suggests the existence of a previously unknown superviscous layer inside our planet: part of the lower mantle where the rock gets 3 times stiffer. Such a layer may explain why tectonic plate slabs seem to pool at 930 miles (1,500 km) under Indonesia and South Americas Pacific coast.
The Earth has many layers, like an onion. Most layers are defined by the minerals that are present. Essentially, we have discovered a new layer in the Earth. This layer isnt defined by the minerals present, but by the strength of these minerals, said Dr Lowell Miyagi of the University of Utah, the second author on the paper published in the journal Nature Geoscience.
(Excerpt) Read more at sci-news.com ...
*tend to*
Goofy phone.
Well, if you watch the Weather Channel early on Sunday morning you will find that earthquakes are being caused by frakking........
Just thought I would mention it........
And yes, if you're wondering, that is a reasonably accurate depiction of mrs. kitchen and her kitties.
Certainly plate tectonics over geologic time produces the plate movements responsible for large scale climate change. The collision of the Indian Plate with the Eurasian Plate is responsible for the Himilayan range which combined with the monsoon currents give us the most massive carbon sink and, most likely, the low CO2 levels that contributed to the most recent ice ages. What accounts for near term climate change? We are slowly and acrimoniously learning.
Vegetation and ocean plankton from the Carboniferous, yes, dinosaurs, no.
Is this new layer several million degrees, like Algore taught us?
Of course not but it is hot and there is a lot of pressure. I doubt Al is smart enough to understand the composition of the earth and the fact that most of the time the mantle and core have subtle short range impact on the surface climate but great influence in deep time. In fact the magnetic fields are the largest short term affect.
Slab stagnation in the shallow lower mantle linked to an increase in mantle viscosity
Modelling based on our experimental data shows that the viscosity in the region surrounding the subducting slabs could (not DOES) increase by 2.3 orders of magnitude throughout the upper 900 km of the lower mantle. Such a strong increase in viscosity can (not DOES) lead to the stagnation of slabs that are sinking through the shallow lower mantle.
48 comments and not one person that I could see went to the source!
I am not really impressed by some idiot claiming a new discovery here...
There must be varied viscosities all along the post mantle area. These would be transitory in nature...as they heated. They may be more common where the plates enter.
I would think this is to be expected, and not discovered.
“The source be damned, this is my opinion about something I don’t understand!!!!!” I happens a lot but the article was still interesting.
The depth they cited is not deep enough to be below the lower mantle.
I didn't find it anything but misleading.
Mid-lower Mantle.
LOL.....that looks like the anterior cruciate ligament!
Gotta get some heat on that!
Maybe several million degrees!
gee.....slab stagnation...
We need to get Obama right on that......:-)
Perhaps we can find a new John Holmes...
OK....so it’s postulated that they discovered a new layer?
LOL....
Semantics are fun sometimes...but tiresome.
“
NOUN
1.the branch of linguistics and logic concerned with meaning. There are a number of branches and subbranches of semantics, including formal semantics, which studies the logical aspects of meaning, such as sense, reference, implication, and logical form, lexical semantics, which studies word meanings and word relations, and conceptual semantics, which studies the cognitive structure of meaning.”
Why are you asking the question of me? Do you see where they've proven a new layer exists?
No? Then they've merely postulated a new layer could exist and even their own words verify that.
Words mean things.
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