Pater noster lakes Irish example: Mount Brandon, Co. Kerry
Description: A series of glacial lakes connected by streams (Fig. 10.12).
Lakes with connecting streams
Fig. 10.12(a) Pater noster lakes.
Fig. 10.12(b) Pater noster lakes, on Brandon Mountain, Dingle Peninsula, Co. Kerry.
Formation: Differential erosion of the valley floor leads to the formation of depressions in areas of less resistant rock. These fill with water, often forming lakes linked by a river known as pater noster lakes. Sometimes waterfalls can occur between lakes.
Pater-noster lakes
Fig. 10.12(c) Pater noster lakes on an OS map.
EXAM TIP (HL)
In the 2018 Higher Level paper, students were asked to describe the formation of a feature they could identify on the Ordnance Survey map extract accompanying the exam.
EXAM LINK (HL) Surface Processes (30 marks)
Examine the impact of the processes of erosion on the formation of one glacial landform that you have studied.
2017, Q3B CHECK YOUR LEARNING
1. Describe the main characteristics of upland glaciation and lowland glaciation.
2. Explain the following terms: nivation, rotational slip. 3. What name is given to a lake occupying a cirque? 4. Draw a simple diagram to show the contour pattern for a cirque. 5. On which side of uplands do cirques form? Why? 6. Name an Irish example of (a) an arête and (b) a pyramidal peak. 7. Name four different processes involved in the formation of a U-shaped valley.
154 Marking Scheme:
Process of erosion named × 2 marks Landform named × 2 marks Examination = 13 SRPs × 2 marks
