Geoscience Reference
In-Depth Information
FIGURE 6
. The Break-Up of Pangaea. Shaded areas are shallow seas.
Source
: A. Wegener,
The Origin of Con? nents and Oceans
(New York: Dover, 1966). Courtesy of Dover Publica-
tions.
The protocontinents had separated and moved away from one another, India
movingnorthtocollide withAsiaandthrowupthe“largestfoldedrangeonearth.”
The Americas drifted westward, “their leading edges compressed and folded by
the frontal resistance of the ancient Pacific floor,” giving rise to the “vast Andean
range which extends from Alaska to Antarctica” (20).
