What is delta in geography

River delta

The rivers flow slowly in the delta. Nature is given a lot of space to develop undisturbed.

A river delta is a specific piece of land. It is where a river flows into the sea or into a lake. Because the flow slows down, it often splits into several arms. Such a piece of land is also called a delta estuary, estuary delta or simply delta.

A river delta usually has a shape that looks roughly like a triangle from the air. The Greek letter "Delta" also has the shape of a triangle. Hence the river delta got its name.

Rivers carry a lot of fine sand with them. In case of high water or on steep terrain, they also bring small or large stones with them. Then when the river flows into a sea or lake, the river flows more slowly. He leaves the sand and stones that he has brought with him, he deposits them. This material is also called "debris" because the river has carried it with it. That is why river deltas are constantly increasing and growing into the sea or lake.

There are often few people living in younger river deltas because the land can be flooded by the river again and again. Most of them are then paradises for animals, especially birds. Often such areas have also been declared nature reserves. A good example of this is the Rhone Delta in southern France.


There are also other search results for “River Delta” from Blind Cow and Ask Finn.

The Klexikon is like a Wikipedia for children and schoolchildren. The most important things explained simply, with definition, many pictures and maps in over 3000 articles. Basic knowledge suitable for children, everything easy to understand and good for presentations in school.