A basin is a type of depression formed on the Earth's crust and are formed due to forces acting above Earth's surface, like erosional activity or due to the forces acting beneath the surface of the Earth like seismic tremors. Basins may take millions of years for their formation and may range hundreds of kilometres.
Tectonics is the standard mode witnessed in the development of a basin. After a basin is formed, typically it is over time filled up with the sediments shed from the surroundings bringing additional subsidence, causing the basin to be more deeper while making more accommodation space.
