EQ1 - 4.1: Geology and past processes have influenced the physical landscape of the UK. Flashcards
What are the three rock types?
Igneous, metamorphic and sedimentary.
Name one or more examples of an igneous rock.
Granite.
Where would you mostly find igneous rock?
The uplands.
Name one or more examples of a metamorphic rock.
Schists and slates
Where would you mostly find metamorphic rock?
The uplands.
Name one or more examples of a sedimentary rock.
Chalk, limestone and clay.
Where would you mostly find sedimentary rock?
The lowlands.
How are igneous rocks made?
It is created when a volcano erupts under the surface of the Earth and cools there. It is called intrusive rock and has large crystals because it cools slower.
How are metamorphic rocks made?
They are created when existing rock compacts together and is exposed to extreme heat or pressure (for example if a volcano erupted underwater and compacted together with other rocks, the pressure of the sea floor would create metamorphic rock).
How is sedimentary rock made?
It is created when a volcano erupts above the surface of the Earth and cools there. It is called extrusive rock and has small crystals because it cools faster.
What is the Tees-Exe line?
It’s the line that separates the different geologys of the uplands and the lowlands.
What is the uplands?
The uplands is an area in the UK. It is the northern part of the UK and includes the north of England, Scotland, Ireland and Wales. It’s the area of the UK that was eroded by the glaciers in the ice age. It includes the Lake District.
What is the highest point in the Lake District?
Scafell Pike (978m)
Describe freeze thaw weathering.
Freeze thaw weathering is where water gets into cracks in the rock during the day. Then at night, the water freezes and the rock expands by 10%. This happens every night and over time, it erodes away the rock.
What is a misfit stream?
It’s a small stream left in a massive valley after a glacier has melted. It’s called this because it seems impossible that a small stream of that size could erode a massive valley. It doesn’t fit in therefore it is a misfit.