RV-P wrote:- Ahmed, think a little bit ... According to you, it comes from where the matter that raised Scandinavia, Canada and now Greenland following the melting of glaciers? From space ?!??...
The question is not addressed to me but I can not help but answer: yes, the matter that composes our continents does indeed come from space!
In addition, concerning the cycle of water and carbon, not a drop is lost: the carbon accumulated since the Carboniferous and Noah's Flood (which nevertheless exterminated the entire terrestrial animal population and period and vegetation!) is being extracted by man from the depths of the Earth!
It's not the flood of Noah but the deluge of
Gilgamesh,
Noah did some plagiarism!
There has never been a Flood exterminating the entire terrestrial animal and human population!
"Just" major climatic upheavals during the last ice age causing "torrential" flooding in many areas of the world, hence the story through many cultures of this event.
Your diagram represents what was explained above, the decrease of load that represented the ice (hundreds of millions of tons ...) causes a rise of the massif, called glacial isostatic adjustment.
It should be noted that this phenomenon occurs even on non-ice-covered massifs (isostatic adjustment).
Be careful though!
The crustal root of the massif, once deeply depressed, rises under the effect of lightening,
it is not borrowed from the seabed,
because already existingit is thus a rise of the root + of a part of the lithosphere which causes a rebalancing of the masses.
Small explanatory diagram:
"Engineering is sometimes about knowing when to stop" Charles De Gaulle.