What do the world's oldest icebergs look like

Icebergs can be extraordinarily huge. On the surface of the water can be seen only about 10 percent of their present volume. The greater part is hidden under water.

Glacier researcher Robert Gilmore is in Antarctica every year. He comes here with expeditions for the organization of Polar Latitudes. So, according to observations of a specialist, icebergs melt incredibly slowly and move just as slowly. Each of them is unique in its own way and externally different. For example, dark veins can say that once in the cavity water got, which later froze. And compact bluish icebergs, most likely, are much older than some of their brethren, they do not refract light and as a result, there is a kind of optical illusion.

Iceberg in the Yokulsaurloun lagoon, Iceland

Iceberg in Antarctica

The original iceberg in Greenland, "stuck" by storms

An ancient iceberg in the Scotia Sea, which the penguins turned into their personal attraction

Glacier Perito Moreno, Argentina

It happens that because of the internal imbalance in the iceberg, it can tilt. For example, like this off the coast of Antarctica

Iceberg in the Weddell Sea

The breaking iceberg

Winds can apply to the surface of icebergs various minerals that outwardly look like layers

Greenland

The Sirmek-Kujallec Glacier is considered to be one of the most prolific icebergs in the Northern Hemisphere

Yokulsaurlown

Iceberg in Alaska