Surface Features

Question 1

What is a limestone pavement

Answer 1

Surface of a karst landscape is called a LIMESTONE PAVEMENT

Question 2

How is limestone pavement formed

Answer 2

*Rain water falls onto the exposed limestone and passes through vertical joints or cracks in the limestone
*carbonation makes the joints wider by dissolving the calcium carbonate in the limestone until then they look like grooves or gaps in limestone

Question 3

Grooves or gaps in a limestone pavement are called

Answer 3

Grikes (the block left in between grikes ar e called Clint’s)

Question 4

What is a swallow hole

Answer 4

River that flow over a limestone surface can disappear underground through a SWALLOW HOLE

Question 5

How is a swallow hole formed

Answer 5

*river flows over limestone water widen joints in Rock through carbonation
*river disappears from surface begins to flow underground along BEDDING PLANES
*carbonation and physical force of the moving water called HYDRAULIC ACTION enlarge joints and bedding planes
*the place where rivers disappear underground is a SWALLOW HOLE
*River continues flow underground helping form underground karst features such as passages and caves

Question 6

Swallow hole size

Answer 6

Vary in size depending on how small/big river is burrow 6 meters wide and 16metres deep

Question 7

Where is karst landscapes formed

Answer 7

In areas exposed limestone rock to weather

Question 8

Karst landscape e.g

Answer 8

Burren co.Clare