A tinaja[tiˈnaxa], sometimes tenaja, is a surface pocket (depression) formed in bedrock that occurs below waterfalls, that is carved out by spring flow or seepage, or that is caused by sand and gravel scouring in intermittent streams (arroyos). The term usually implies a natural or geologiccistern in rock which retains water. They are often created by erosional processes within intermittent streams.
Tinajas are an important source of surface water storage in arid environments.
These relatively rare landforms are important ecologically, because they support unique plant communities and provide important services to terrestrial wildlife.
↑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
12Fox, 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.