1.   Faster than new crust can be added to the plate, old crust is being consumed by the trench.

2.   She pencilled on a new crust of eyeshadow and lipstick.

3.   This proposed that mid-oceanic ridges represent regions where new oceanic crust is being generated by the upwelling of hot mantle material.

4.   As new crust emerged at mid-oceanic ridges, they suggested, it became magnetized with the polarity of the prevailing magnetic field.

5.   In island arcs like Japan and the Aleutians, new continental crust is still piling up, but at a geriatric pace.

6.   In the valleys, lava oozes and sometimes erupts to create new crust, which cracks as it cools.

7.   The plates form in the abyss as hot lava erupts from the sea floor, buttressing new crust on either side of the fiery gash.

8.   The stripes are symmetrical, running north-south on either side of mid-ocean ridges where the upwelling magma surfaces to form new crust.