Porosity and Permeability

Front

What is the definition of permeability?

Back

The ability of water to flow through sediments.

Front

Which sample has the least porosity?

Back

Tight pack.

Front

If water can easily flow between the cracks in a rock, what can we say about the rock?

Back

The rock is permeable.

Front

Which sample has the greatest porosity?

Back

Sorted.

Front

What happens to permeability if particle size decreases?

Back

Permeability decreases.

Front

What is porosity?

Back

The amount of air space between sediments.

Front

How does the arrangement of particles affect porosity?

Back

Loosely packed particles have higher porosity than tightly packed particles.

Front

What is the relationship between porosity and permeability?

Back

High porosity does not always mean high permeability; the connectivity of pores is also important.

Front

What type of sediment typically has the highest permeability?

Back

Coarse-grained sediments, such as gravel.

Front

What is an example of an impermeable material?

Back

Clay.