GEOLOGY

Detailed explanation-1: -Deltas are wetlands that form as rivers empty their water and sediment into another body of water, such as an ocean, lake, or another river. Although very uncommon, deltas can also empty into land. A river moves more slowly as it nears its mouth, or end.

Detailed explanation-2: -All deltas (by definition) have their sediment transported to the delta by rivers. Thus, fluvial deposits are always associated with them. In addition, depending on marine (or lacustrine) conditions, waves and tides can redistribute the fluvial sediment changing the morphology and facies of deltas.

Detailed explanation-3: -In the delta, erosion happens when the hydraulic energy of moving water is sufficient to move sediment. previously deposited. River flows, particularly flood flows, often keep channels open by eroding recent deposits and can widen channels and initiate new channels.

Detailed explanation-4: -A river delta is a landform shaped like a triangle, created by deposition of sediment that is carried by a river and enters slower-moving or stagnant water. This occurs where a river enters an ocean, sea, estuary, lake, reservoir, or (more rarely) another river that cannot carry away the supplied sediment.

Detailed explanation-5: -It is formed by riverborne sediment that is deposited at the edge of a standing water, in most cases an ocean, but some times a lake. The morphology and sedimentary sequences of a delta depend on the discharge regime, the sediment load of the river, and the relative magnitudes of tides, waves, and currents (35).