Philippines Etymology and Geology

Etymology

The Portuguese were the first to refer to Sulawesi as 'Celebes'. The meaning of this name is unclear; originally it did not refer to the entire island as the Portuguese thought Sulawesi was an archipelago. The modern name 'Sulawesi' possibly comes from the words sula ('island') and besi ('iron') and may refer to the historical export of iron from the rich Lake Matano iron deposits.

The name Philippines and its Spanish counterpart, Filipinas, are derived from the name of Phillip II, the King of Spain in the late 16th century. Spanish explorer Ruy López de Villalobos used the name Las Islas Filipinas in honor of the then-Crown Prince during his expedition to the Philippines, originally referring to the islands of Leyte and Samar. Despite the presence of other names, the name Filipinas was eventually adopted as the name of the entire archipelago.

Geology
According to reconstruction of plate tectonics, the island is believed to have been formed by the collision of terranes from the Asian Plate (forming the west and southwest), from the Australian Plate (forming the southeast and Banggai), and from island arcs previously in the Pacific (forming the north and east peninsulas).