Glacial and beach erosion

Front

What is Longshore Drift?

Back

Longshore Drift is the movement of sediment along a coast by waves that approach at an angle to the shore, causing material to be transported down the beach.

Front

What is the process called when waves approach the shore at an angle?

Back

The process is called Longshore Drift.

Front

What is Till?

Back

Till is the unsorted material that is deposited directly by glaciers, consisting of a mix of clay, silt, sand, gravel, and boulders.

Front

What are Striations?

Back

Striations are parallel scratch marks on bedrock caused by the movement of glaciers over the rock surface.

Front

What are Erratics?

Back

Erratics are large boulders that have been transported and deposited by glaciers, often found far from their original source.

Front

What is the difference between Swash and Backwash?

Back

Swash is the movement of water up the beach after a wave breaks, while Backwash is the water that flows back down the beach after the wave has receded.

Front

What is Attrition in the context of erosion?

Back

Attrition is the process where rocks and pebbles collide with each other and break into smaller pieces as they are transported by waves.

Front

What are Moraines?

Back

Moraines are accumulations of debris (till) that have been deposited by glaciers, forming ridges along the edges of glaciers.

Front

What are Fjords?

Back

Fjords are deep, narrow inlets of the sea between high cliffs or steep slopes, formed by the submergence of a glaciated valley.

Front

What is the role of Nearshore currents?

Back

Nearshore currents are currents that occur close to the shore, playing a significant role in the transport of sediment and shaping coastal features.