Flashcard on Sand

Front

What does the term 'sand' technically refer to?

Back

The size of sediment.

Front

Which classification is larger than 'cobble' in the Wentworth Classification?

Back

Boulder.

Front

Where does green sand usually come from?

Back

Ultramafic igneous rock like Dunite.

Front

How can you determine the distance to the source of the sand or the wave energy of the beach?

Back

By analyzing the size and shape of the sand grains.

Front

What determines the composition of a beach?

Back

Local availability of materials.

Front

What is the Wentworth Classification?

Back

A system for classifying sediment based on particle size.

Front

What is the typical size range for sand particles?

Back

0.0625 mm to 2 mm in diameter.

Front

What is the primary component of most beach sand?

Back

Silica (SiO2), primarily in the form of quartz.

Front

How does wave energy affect sand distribution on a beach?

Back

Higher wave energy can erode sand and transport it further inland or offshore.

Front

What role do ocean currents play in sand movement?

Back

Ocean currents can transport sand along the coast, affecting beach shape and composition.