Posted on 06/10/2016 4:36:30 PM PDT by JimSEA
Super-computer modelling of Earth's crust and upper-mantle suggests that ancient geologic events may have left deep 'scars' that can come to life to play a role in earthquakes, mountain formation, and other ongoing processes on our planet.
This changes the widespread view that only interactions at the boundaries between continent-sized tectonic plates could be responsible for such events.
A team of researchers from the University of Toronto and the University of Aberdeen have created models indicating that former plate boundaries may stay hidden deep beneath the Earth's surface. These multi-million-year-old structures, situated at sites away from existing plate boundaries, may trigger changes in the structure and properties at the surface in the interior regions of continents.
"This is a potentially major revision to the fundamental idea of plate tectonics," says lead author Philip Heron, a postdoctoral fellow in Russell Pysklywec's research group in U of T's Department of Earth Sciences. Their paper, "Lasting mantle scars lead to perennial plate tectonics," appears in the June 10, 2016 edition of Nature Communications.
(Excerpt) Read more at sciencedaily.com ...
A proposed perennial plate tectonic map. Present-day plate boundaries (white lines), with hidden ancient plate boundaries that may reactivate to control plate tectonics (yellow lines). Regions where mantle lithosphere heterogeneities have been located are given by yellow crosses.
Well, you see, if the erf wasn’t getting sooooooooo hot and expanding, all these erf quakes could be avoided. Right?
No surprises there.
The New Madrid quakes and a long series of very low intensity quakes across the US show up on those two lines crossing the middle of the US.
This takes me to the hard to explain uplift of the the remarkably stable plate region of the Colorado Plateau (you can read a lot of history in the walls of the Grand Canyon) and the Basin and Range Provence which both of which rose two or more kilometers in elivation. What would cause the Colorado Plateau to uplift so far after accumulating sediments and occasional volcanics for some 600 million years.
This article might lead to some answers and a lot more questions.
A rather rough map of the orogenies (Major plate stresses and mountain building in the borders of the continental USA.
Fracking! OH-NOOOOO!
Just wait. These gubmint academics will find a way to link fracking and the ancient geological scars, somehow.
I kind of like Dr.
Walt Brown’s hydroplane theory to explain the uplift and many other things.
Whole lotta shakin’...
Our egg is cracked.
You’ll never hear about this in the MSM unless it can somehow be connected to LGBT “rights”.
Bush’s fault
You can take his book and wander through the peaks of the Ruby Mountains with its granite and diabase porphyry as a guide if I recall. Poet and technical journalist.
Sorry, a water layer beneath a granite crust bursting forth in a great flood is contrary to anything I or anyone else has observed. The earth just does not give any evidence to support a young planet and great worldwide flood.
I just look through the parts I was living in, I’ll have to read the whole thing now that I’ve the time.
Thanks for the “Heads UP”. I’ve save the link for my week-end.
Theoretical Geology makes more sense Gore’s climate “facts”.
Had not read that one. Thank you for the reference.
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