##  [Delta](/delta) 

  ##  [Delta](https://natural.quantumdictionary.io/delta-0) 

  

 [![Natural & Formal Sciences Dictionary](/sites/default/files/styles/large/public/2026-01/Natural%20%26%20Formal%20Sciences.png.webp?itok=2kCDRVQv)](/topic-specific-dictionaries/natural-formal-sciences)



**Natural & Formal Sciences Dictionary**

 







 

 

 

 



 

 

 

 

Definition

A depositional landform that builds at a river mouth where fluvial sediment load accumulates as the river enters standing water (sea, estuary, or lake), producing distributary channels, lobes or topset-beds and creating distinct facies from upstream alluvial zones.