Proof have you collected about the age of the crust alongside mid-ocean ridges and ocean trenches seafloor spreading.
A Crust on the lowest and pinnacle of an apple pie is an example of a crust. A complicated movie on top of the gentle pudding is an instance of a crust. A hard crisp overlaying or surface. There are two sorts of crust: continental crust, and ocean crust. Continental crust is thicker and predominantly felsic in composition, which means that it contains minerals that are richer in silica. The composition is important because it makes continental crust much less dense than ocean crust.
Crust. A dried exudate on the pores and skin surface, both serum, blood, pus, or a combination. Crusts are commonly seen in sicknesses with a pustular component (eg dog pyoderma, pemphigus foliaceous), and where the exudate from erosions and ulcers dries on the surface of the lesion. After the overdue accretion of the Earth, heat retained with the aid of the Earth resulted in the whole melting of the higher mantle, which shaped a magma ocean that blanketed the surface of the Earth. as the Earth cooled, the magma ocean crystallized to form a full-size crust .
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