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Montagne <strong>di</strong> origine tettonica.<br />
Il magma all’interno della Terra spinge con forza gran<strong>di</strong> parti <strong>di</strong> terreno<br />
roccioso (fig. C).<br />
Le parti <strong>di</strong> terreno roccioso si scontrano e salgono verso l’alto (fig. D).<br />
(C) (D)<br />
SPACCATURA