1.   The geophysicist must probe deeper to look at the forces generated below the surface of the earth by the continental plates.

2.   And when two continental plates collide, the undersides of the continents might detach and sink down into the mantle.

3.   As our veteran rafting guide, Britt Huggins, explained, the river at that point separates two continental plates.

4.   But that rock had itself already been tortured by a prior collision between continental plates.

5.   Like the movement of the continental plates, the foundations of Mexican, Puerto Rican, Cuban and Central American identity are the result of social and political upheaval.

6.   He said it had occurred at the junction of two continental plates where movement was common.

7.   They rumble with earthquakes and landslides as subterranean continental plates grind in an endless tectonic struggle.

8.   The epicentre was located in a fault zone where the African and European continental plates meet, causing frequent earthquakes.