Friday, August 16, 2013

How the Philippines as an Archipelago Emerged

According to Philippine folklore, the country came out to be made of 7,107 islands (in low tide) due to a conjugal fight between two giants from Ilocos, named Angalo and Angarab. Legends are part of our culture, however it is best to have our next generation know the scientific reason behind it so they will be more intellectually involved on how our islands came about. One would be surprised that a nearby island may be a distant neighbor millions of years ago.

Millions of years ago, the world is only made up of one super continent called Pangaea. And due to continental drift, Pangaea was separated to the modern day 7 continents.

The first Philippine island showed up about 60 million years ago. It is the island of Mindoro and Palawan which is very near the island of present-day Taiwan.

Due to geological and plate tectonic evolution, primarily due to the Pacific plate and Australian plate moving inward to the Asian plate; the island of Luzon and Mindanao started to show up. It was only about 30 million years ago when the Indian plate has started to collide with the Asian plate, then, created a tear to which the now West Philippine Sea developed and pushing the solitary Mindoro and Palawan Island closer to the newly developed Luzon and Mindanao islands. The Pacific, Australian and Indian plate continued to push inward to Asia thus creating 7, 107 islands of the now, Philippines.

The Pacific plate continues to move westward creating a rise of under ocean surface east of Dinapigue, Isabela. In a million years, this rise will add up to the territory of the Philippines. An island as big as Luzon... the Benham Rise.

Below is an animation of how the Asian plate moved in every millions of years thus allowing the modern day Philippines to come about.

Animation of Plate movements in Asia.
Created by SEARG

1 comment:

  1. The Philippines was formed due to fragments of bigger chunks of land pulled away to the center where our country is currently located.