The changing landscape of the Uk Flashcards
How are sedimentary rocks formed
When layers of sediments are compounded together by heat and pressure
What are the 3 main rock types in the UK?
Igneous, metamorphic and sedimentary
What are 2 example of sedimentary rock?
chalk and sandstone and limestone
What are 2 types of igneous rocks?
granite and basalt
What are two types of metamorphic rocks
schist and slate
What are igneous rocks formed of?
hard crystals
How are metamorphic rocks formed?
great heat and pressure underground
Is the UK split into 3 geological halves?
NO it’s split into 2
What is the north west half of the UK made of?
harder igneous and metamorphic rocks forming upland landscapes
what types of landscapes are in the south east of the uk?
Lowland landscapes
What what type of human activities change UK landscapes
Agriculture and forestry
Name the three forms of weathering
Mechanical biological and chemical weathering
What is biological weathering
Biological weathering occurs when plants break up rocks with roots or root exudates.
What is chemical weathering
Chemical weathering occurs when water dissolves minerals in rocks
What is mechanical weathering (freeze thaw)
Mechanical weathering occurs when water solidifies inside a rock, causing the rock to expand and crumble
