When gravity and friction overcome the ability of the moving water to move them.
in a delta
Steams erode sediments when they flow with enough force to pick up and carry sediment particles along their path. This erosion is often more pronounced during periods of high flow, like after heavy rain events or during snowmelt, when streams have more energy to transport sediment.
beach
Steams flowing in tunnels beneath glaciers deposit sand and gravel
accumulated sediments on the bottom of the river
Drift and/or till.
till
Water can deposit sediment such as sand, silt, and clay. Wind can deposit smaller particles like sand and dust. Melting glaciers can deposit a mixture of rocks, sediments, and debris known as moraines.
When sediments deposit in lakes or oceans, they typically settle in layers on the bottom of the body of water. Over time, these layers can build up and form sedimentary rock.
Glacial ice is the most probable agent of erosion that deposited unsorted sediments in deposit B. Glaciers can transport a wide range of sediment sizes and mix them together as they move, resulting in unsorted sediments.
no
turbidity currents deposit sediments on the ocean floor