Feature type

River Delta

A fan of sediment deposited where an ancient river entered a standing body of water — a prime target in the search for past life, as at Jezero crater on Mars.

In brief

A fan of sediment at a river's mouth.

Examples of this feature

Jezero CraterSurface feature
Mars
A crater that once held a lake, with a well-preserved river delta at its rim. The Perseverance rover is caching samples here in the search for signs of ancient life.

Knowledge connections

Group includesJezero Crater

Sources

Facts on this topic will be cited from these primary and reference sources.

NASANational Aeronautics and Space Administration
Mission data, planetary science, space telescopes, and public-domain imagery.
Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.

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