Geomorphology and Rivers (Part 2)

Which of the following features are likely to be found in the upper course of a river?

• Delta
• V Shaped Valley
• Waterfall
• Meander
• Ox Bow Lake

Which of the following features are likely to be found in the lower course of a river?

• Delta
• V Shaped Valley
• Waterfall
• Meander
• Ox Bow Lake

Upper course features are likely to be created by which type of erosion?

• Vertical erosion
• Lateral erosion

Which is happening in stage 1 of the formation of a V Shaped Valley?

• The weathered materials becomes the load and is transported downstream
• The river erodes vertically and creates a deep narrow gorge
• Gravity and rainwater wash away weathered material in the river; spurs are created
• The sides are exposed to weathering and are broken down

Which is happening in stage 2 of the formation of a V Shaped Valley?

• The weathered materials becomes the load and is transported downstream
• The river erodes vertically and creates a deep narrow gorge
• Gravity and rainwater wash away weathered material in the river; spurs are created
• The sides are exposed to weathering and are broken down

Which is happening in stage 3 of the formation of a V Shaped Valley?

• The weathered materials becomes the load and is transported downstream
• The river erodes vertically and creates a deep narrow gorge
• Gravity and rainwater wash away weathered material in the river; spurs are created
• The sides are exposed to weathering and are broken down

Which is happening in stage 4 of the formation of a V Shaped Valley?

• The weathered materials becomes the load and is transported downstream
• The river erodes vertically and creates a deep narrow gorge
• Gravity and rainwater wash away weathered material in the river; spurs are created
• The sides are exposed to weathering and are broken down

Which is happening in stage 1 of the formation of a waterfall?

• River flows over a hard rock and meets a band of softer, less resistant rock.
• Overtime, this process repeats and the river retreats forming a gorge
• The softer rock is undercut, leaving the harder rock to overhang which collapes
• The softer rock is eroded vertically and forms a 'step'
• The spray from the plunge pool erodes the backwall and it starts to recede

Which is happening in stage 2 of the formation of a waterfall?

• The softer rock is eroded vertically and forms a 'step'
• Overtime, this process repeats and the river retreats forming a gorge
• The softer rock is undercut, leaving the harder rock to overhang which collapes
• River flows over a hard rock and meets a band of softer, less resistant rock.
• The spray from the plunge pool erodes the backwall and it starts to recede

Which is happening in stage 3 of the formation of a waterfall?

• A plunge pool is created
• Overtime, this process repeats and the river retreats forming a gorge
• The softer rock is undercut, leaving the harder rock to overhang which collapes
• The softer rock is eroded vertically and forms a 'step'
• River flows over a hard rock and meets a band of softer, less resistant rock.