what is a delta in geography
Sacramento Delta at flood stage, early 2009. A river delta is a landform that forms from deposition of sediment carried by a river as the flow leaves its mouth and enters slower-moving or standing water.This occurs where a river enters an ocean, sea, estuary, lake, reservoir, or (more rarely) another river that cannot transport away the supplied sediment.Despite a popular legend, this use of the word delta was not coined by Herodotus.his occurs where a river enters an ocean, sea, estuary, lake, reservoir, or (more rarely) another river that cannot transport away the supplied sediment. Despite a popular legend, this use of the word delta was not coined by Herodotus.
Geography (from Greek γεωγραφία, geographia, lit. earth description) is a field study of the lands, the features, the inhabitants, and the phenomena of Earth. A literal translation would be to describe or picture or write about the earth. The first person to use the word geography was Eratosthenes (276–194 BC).his is 'a description of the world'—that is Geography. In a word Geography is a Science—a thing not of mere names but of argument and reason, of cause and effect. Just as all phenomena exist in time and thus have a history, they also exist in space and have a geography.