A lacustrine basin is a depression or low-lying area that collects water, leading to the formation of a lake. These basins can be formed by tectonic activity, glacial processes, or volcanic activity. Lacustrine basins are significant in studying sedimentary environments, paleoclimate, and the hydrology of lake systems.

Source Last, W. M., & Smol, J. P. (2001). “Tracking Environmental Change Using Lake Sediments.” Kluwer Academic Publishers.