الإخوة أصحاب اللغة الإنجليزية أرجو أن تتأملوا هذا الكلام وتعطوني رأيكم فيه وإن أمكن إيجاد مصادر علمية له:
in mid 60's geologists discovered, with plate tectonics theory, that continental-collisions mountains play an important role in stabilizing the earth's crust.
'stabilizing' means here 'preventing crust-shaking'. 'shaking' has nothing to do with seisms, because it's a phenomenon that would occur, if there weren't mountains, on the entire continents on human time-scale permanently.
The mountains, thanks to their deep roots, hold down entire plates to prevent the latters from being unstable (shake); just as pegs hold down a entire tent lest the latter should be unstablized by any external factors (the wind, for instance).
tent pegs [continental collision mountains-range on the corner of a plate] are driven deeply in the ground [for mountains, deeply in asthenosphere] to hold down an entire tent [the entire plate which the mountains-range is on] lest the latter should be unstable.[lest these entire plate should shake]. If mountains are deeply driven (like pegs), then they may conceivably keep their entire plates from shaking and swaying (over the asthenosphere, still on human time-scale).
in mid 60's geologists discovered, with plate tectonics theory, that continental-collisions mountains play an important role in stabilizing the earth's crust.
'stabilizing' means here 'preventing crust-shaking'. 'shaking' has nothing to do with seisms, because it's a phenomenon that would occur, if there weren't mountains, on the entire continents on human time-scale permanently.
The mountains, thanks to their deep roots, hold down entire plates to prevent the latters from being unstable (shake); just as pegs hold down a entire tent lest the latter should be unstablized by any external factors (the wind, for instance).
tent pegs [continental collision mountains-range on the corner of a plate] are driven deeply in the ground [for mountains, deeply in asthenosphere] to hold down an entire tent [the entire plate which the mountains-range is on] lest the latter should be unstable.[lest these entire plate should shake]. If mountains are deeply driven (like pegs), then they may conceivably keep their entire plates from shaking and swaying (over the asthenosphere, still on human time-scale).

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