Newstein wrote:Cito di Pense wrote:Newstein wrote:Question. How do continents move on a non expanding earth AND WHERE.IS.THE.EVIDENCE??
'Continents' are not entities, except topographically. Continents are lithologically and chemically distinct from the substrate tectonic plates that carry them. There's a property called 'density' you might be interested in. It varies, due to varying bulk mineral composition of the different regions.
The continents are affixed to tectonic plates and move with them. The evidence is geodetic, measured. It's not as if you haven't been reminded of that a few times. Tectonic plates move because of
convection in the mantle. The mantle undergoes convection because its top is cooler than its base, and can deform plastically, below the lithosphere, which defines the plates. It's not as if you haven't been reminded of the facts a few times. That's plate tectonics in a nutshell for you, Newstein.
If you don't have any substantive objections, now, please go rattle the beads of somebody who's actually wearing them.
Convection in the mantle... NO proof.
Here, let me google that for you:
12,000 papers just from the past 5 years showing data supports mantle convectionNewstein wrote:And if so, how can you explain a convection cycle that reaches from the North-Pole to the South pole?
Not sure what you mean by this. There are convection cells all throughout the mantle, which makes sense as just a single cell but no convection elsewhere would be very unstable.
Newstein wrote:I do understand plate tectonics, just look at my video. I'm fucking explaining PLATE TECTONICS!!
No, you're battling strawmen in your video and on this forum. We have been pointing out your numerous misconceptions, but you either ignore these posts or dismiss the data out of hand.
Newstein wrote: If I can DEBUNK it, I understand it !!
Back to front: you need to understand it first, before you can falsify it.
Newstein wrote:(but I do not know everything from geology)
Nobody knows everything, but I've given you heaps of information that I know, yet you haven't really integrated that into your body of knowledge.
Newstein wrote:Check this out:
Do you have a drawing program? Do it yourself if you don't believe it. Shell thickness = 480km
Question: DO SOME PARTS OF THE CONTINENT ARE MOVING TO EACH OTHER IN THIS IMAGE?
First off: what's your reasoning for chosing 480km for the shell thickness. That's somewhere in the middle of the upper Mantle, and well below the Asthenosphere.
Most of what is relevant here would at most be occurring from the base of the Asthenosphere up (at most 200km depth). As you probably know, the division of Lithosphere/Asthenosphere is based on the rheology of the rocks, ie how rigid or ductile they behave (as opposed to the Crust/Mantle division, which is based on mineralogical composition change, and the boundary is called the Mohorovicic discontinuity [from seismic studies], and it lies within the Lithosphere)
The reason I'm mentioning this is that your diagram assumes a 'shell' of rock that has the same strength and rigidity from the surface all the way down to a depth of 480km, in order to generate the 'buckling'.
This is obviously not the case, and the increasingly ductile nature of the rocks from on average 100km depth and below allows for a lot of flow and movement. Assuming an expanding earth, the lower parts of your shell are able to flow outwards, and thus the crust would not experience any significant compressive stresses that would be needed for mountain uplift.