A tinaja[tiˈnaxa] is a surface pocket (depression) formed in bedrock that occurs below waterfalls, that is carved out by spring flow or seepage,[1] or that is caused by sand and gravel scouring in intermittent streams (arroyos).[2][3] Tinajas are an important source of surface water storage in arid environments.[2][4]
These relatively rare landforms are important ecologically, because they support unique plant communities and provide important services to terrestrial wildlife.[5]
The term originates in Spain, being Spanish for "clay jar", and is used in the American Southwest.
^Osterkamp, W. R. 2008. Annotated Definitions of Selected Geomorphic Terms and Related Terms of Hydrology, Sedimentology, Soil Science and Ecology: Reston, Virginia, Open File Report 2008-1217, pp 49
^ abFox, William (2005). Desert Water. Portland, Oregon: Graphic Arts Center Publishing Company. p. 12. ISBN978-1-55868-858-2.
^Mabbutt, J. A. (1977). Desert Landforms. Canberra: Australian National University Press. p. 182. ISBN978-0-7081-0437-8.
^Brown, T. B. and R. R. Johnson. 1983. The distribution of bedrock depressions (tinajas) as sources of surface water in Organ Pipe Cactus National Monument, Arizona. Journal of the Arizona-Nevada Academy of Science 18: 61-68.