The fifty-five major islands in the chain constitute a total land area of 1,193 square miles, and are comprised of a series of seamounts and coral islands, separate from the continental shelf, formed at the boundary of the Eurasian and Philippine Plates.<ref>Pearson, 8.</ref> | The fifty-five major islands in the chain constitute a total land area of 1,193 square miles, and are comprised of a series of seamounts and coral islands, separate from the continental shelf, formed at the boundary of the Eurasian and Philippine Plates.<ref>Pearson, 8.</ref> |