L1 - Home of the Hogwarts Flashcards

1
Q

How are igneous rocks formed?

A

When volcanoes erupt and the magma/lava cools.

E.g. granite

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2
Q

How are metamorphic rocks formed?

A

A morphed version of another rock due to extreme pressure and heat (usually at subduction/collision zones)
Comprises of layers of rock (e.g. shale, schist)

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3
Q

How are sedimentary rocks formed?

A

Deposition of particles that have been eroded, also remains of plants and animals. E.g. chalk

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4
Q

What are the characteristics of the rock type(s) found in the UK Uplands?

A

Igneous and metamorphic rock due to magma rising through Earths crust (high relief area e.g. Dartmoor)- resistant to erosion
Scotland, Wales, SW England

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5
Q

What type of rock is the majority of the UK?

A

Sedimentary - long time since UK was near a plate boundary

Formed when the UK was near tropical seas and plants and animals died (carboniferous limestone)

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6
Q

State the 2 processes that wear down mountains (via glaciation).

A

Abrasion, plucking

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7
Q

What is plucking?

A

Rocks and stones are frozen on the sides of glaciers, when the glacier moves they get plucked off leaving jagged surfaces.

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8
Q

How has glaciation affected the UK?

A

Multiple glaciations of the last 2.5m years
Ice advancements as far south as London
U-shaped valleys are the visible result

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