How old is the Chocolate Hills in the Philippines?

Answer 1

The Chocolate Hills in Bohol are a unique geological feature of between 1268 to 1776 cone shaped hills spread across an area of about 20 square miles or 50 square kilometers. They are called the chocolate hills due to the fact that the grass covering the hills turns brown in the dry season.

In a scientific paper published in 1970 by a German geologist it was reported that the Chocolate Hills in Bohol were formed 3 million years ago when the island was below sea level. Recent discoveries of marine fossils support the theory that the entire island was under water.

Although no one knows for certain how the Chocolate Hills were formed, some scientists believe they were created when volcanic activity caused upheaval in the sea bed which the underwater currents then formed into the conical shapes we see today.