Are river deposits sorted or unsorted?

River deposits are generally sorted due to the action of flowing water, which tends to transport and deposit sediments based on their size and weight. As the velocity of the water changes, larger particles settle first, followed by smaller ones, leading to a stratified layering effect. This sorting process results in well-defined sedimentary structures, such as gravel bars and sandbanks, where coarser materials are found upstream and finer materials downstream. However, in some cases, such as during flooding, deposits can become more unsorted.