Riverine Geomorphic Processes and Landforms

Chemical weathering is not a primary agent of riverine erosion. It is a process that occurs over long periods of time and involves the breakdown of rocks and minerals by chemical reactions with water, oxygen, and other substances.

Sediment transport is the process by which sediment is picked up and transported by a river. It is driven by the force of the flowing water and the size, shape, and density of the sediment particles.

Meanders are sinuous bends in a river channel. They are not depositional landforms, but rather erosional features that form as a result of the lateral migration of the river channel.

Deposition is the process by which sediment is deposited from a river. It occurs when the velocity of the flowing water decreases, causing the sediment particles to settle out of suspension.

Climate is not a direct factor that influences the formation of riverine landforms. However, it can indirectly influence these landforms by affecting the discharge, slope, and sediment load of a river.

Alluvial refers to material deposited by a river. It is typically composed of sand, silt, and clay, and can also contain gravel and boulders.

Floodplains are depositional landforms, not erosional landforms. They are formed by the deposition of sediment during floods.

Lateral migration is the process by which a river channel migrates laterally. It occurs as a result of the erosion of the river bank on one side and the deposition of sediment on the other side.

Deltas are depositional landforms, not erosional landforms. They are formed by the deposition of sediment at the mouth of a river.

A braided river is a river with multiple, interconnected channels. It is typically found in areas with a high sediment load and a steep gradient.

Gorges are erosional landforms, not depositional landforms. They are formed by the downcutting of a river into the bedrock.

Sediment sorting is the process by which sediment is sorted by size and shape. It occurs as a result of the differential transport of sediment particles by the flowing water.

Floodplains are depositional landforms, not erosional landforms. They are formed by the deposition of sediment during floods.

A point bar is a sediment deposit on the inside of a river bend. It is formed by the deposition of sediment as the river flows around the bend.

Floodplains are depositional landforms, not erosional landforms. They are formed by the deposition of sediment during floods.