Inclined Strata

Question 1

What is a homoclinal ridge

Answer 1

Asymmetrical ridge with a steeper slope on a side and a gentler on the other side.

Question 2

What is a homoclinal landscape

Answer 2

The landscape is formed from inclined strata that have been tilted at the same degree.

Question 3

How do homoclinal ridges form

Answer 3

The form from alternating sedimentary rock (diff resistance) that have been uplifted by warping, folding, or faulting

Question 4

What is the difference between a dip slope and a scarp slope

Answer 4

A scarp slope is the steep side of an escarpment. It experiences more erosion. While the dip slope is the more gentle side, there’s is less erosion.

Question 5

Briefly explain the erosion on the scrap slope (not scarp retreat)

Answer 5

The side is eroded by sheet wash and mass wasting. Recession due to undercutting (removal of base rock that causes overhanging rocks to fall) occurs

Question 6

Explain homoclinal shifting

Answer 6

The scrap slope’s position moves in the direction (towards) the dip slope.

Question 7

Identify and explain the different homoclinal landscapes

Answer 7

the angle of inclination depends on the inclination of the resistant rock

1) Cuesta- The angle of inclination of a cuesta is between 10°-25°. The dip slope is therefore gentle and the scarp slope is steep.
2) Homoclinal ridge- The inclination is 25°-45°. The difference between scarp and dip slope is less.
3) Hogsback- The angle of inclination is 45°+. The difference between dip and scarp slope is very little

Question 8

Name and briefly explain the 2 landforms on a cuesta

Answer 8

1) Cuesta dome- Circular landform that forms from erosion on an Anticline. The scarp slope faces inwards while the dip slope outwards
2) Cuesta basin- landform that forms from erosion on syncline. The scarp slope faces away from the center and dip slopes face towards it.

Question 9

Give a few examples of uses for a cuesta

Answer 9

1) Dip slope can be used for forestry
2) Cuesta valleys can be used for farming
3) Basins can hold artesian water (underground water)
4) Domes can contain oil and natural gas

Question 10

Examples for uses of a homoclinal ridge

Answer 10

1) Poorts (gaps between mountains by river erosion) can be used to build transport routes
2) A dam wall/dam can be built between poorts/gaps