Notes
4.1 Shaping the landscape
Goals:
- To describe what forces of nature formed NL
- Explain how we have influenced the shaping of the Dutch landscape.
Soil
The tip layer of NL soil = sediment
- Mainly deposited by the river and sea.
Main types of soil in NL
- Peat
- Clay
- Sand
- Loess
Push moraines
- Sediments pushed up by glaciers to form hills.
Only in sandy landscapes.
12,000 years ago
Melting ice sheetsSea level riseMarine clay
4.2 The sand landscape
Sand & Silt
- Deposited in NL by the wind.
o During the last glacial period (+- 20,000 years ago)
- Sand landscape consists out of sand and silt.
o Sand = 0.063 – 2 mm
o Silt = <0.063 mm
Different word ice age = glacial period.
Interglacial period is between 2 glaical periods.
, In the NL there was a polar desert climate.
- Very cold
- Very dry
- Very windy
- Sea-level very low
Sand landscape: Sand landscape = not fertile
Not suitable for crop growing Clay landscape = fertile
Is very suitable for building and cattle.
Solution for sand-landscape back in the days
- Potstatsytemto keep the ground moisture.
o They could survive, they could grow crops.
4.3 River clay landscape
Clay
- Made up of materials
- ‘Made’ through chemical weathering
- Very small (+- 0.002 mm)
You find clay at the end of the river