Which of the following locations is formed by the convergence of two oceanic plates?

The Aleutian Islands of Alaska are formed by the convergence of two oceanic plates. This specific geological feature arises when one oceanic plate subducts beneath another, leading to the formation of a volcanic island arc. As the denser oceanic plate sinks into the mantle, it can create conditions conducive to volcanic activity, resulting in the emergence of islands such as those in the Aleutian chain.

In contrast, other options highlight different geological processes. For instance, the Andes Mountains are primarily formed through the convergence of an oceanic plate and a continental plate, leading to the uplift of the South American continental crust. The Appalachian Mountains and the Rocky Mountains are both examples of mountain ranges formed by continental-continental convergence, which involves different tectonic processes than those that create volcanic island arcs. Therefore, the Aleutian Islands serve as a clear example delineating the results of oceanic-oceanic plate convergence.