It is a cinder cone that formed in the Pliocene period.

This series of rocks was formed in the triassic period.

The cliffs are expected to have been formed in the early Jurassic period.

It is thought to have formed in the Pleistocene period.

Nemrut was probably formed in the early Quaternary period, about 1 million years ago.

In fact most of the tribes in were formed in the period between the 13th and 15th centuries.

It is a subglacial mound that formed in the Pleistocene period.

Numerous grain, coal and lumber businesses formed in the same period.

A small lake has formed in the Jurassic period in the impact site.

The cave was formed in the Triassic period and is about 710 m long.