4.1 Geology And Uk Flashcards
1) Give a definition, approximate age, 3 examples and location in uk of igneous rocks.
Definition - rocks that are formed by lava and magmas (was molten, but then cooled and crystallised)
Age - billions of hears old.
3 examples - obsidian, basalt, granite.
Location - Scottish highlands
2) Give a definition, approximate page, three examples and location in UK of sedimentary rocks.
Definition - rocks that are formed by eroded sediments deposited by rivers, seas.
Age - few million years old.
3 examples - limestones, iron ore, flint.
Location - sandstone hills in the northwest highlands
3) compare compare metamorphic and igneous rock
metamorphic rocks are formed by heat and pressure
igneous rocks are formed by molten
Cooled and crystallised
4) compare the formation and characteristics of granite and carboniferous limestone.
Both are formed under the pressure of the sea carboniferous is also compressed under sand in strata.
5) compare the formation and characteristics of chalk and slate.
- chalk made from fossils and they are stronger than clay.
- slate formed when mud/shake is heated. Its very resistant.
6) Explain when and how active volcanoes shaped the uplands of the uk
When the volcanoes erupt the magma destroys the upland so it re-shapes it
7) explain how glacial erosion and deposition shaped the uk uplands.
The glacial cuts cuts through the landscape and forms u shaped valleys.
8) explain when and how sedimentary rock was formed across the UK lowlands
Sedimentary rocks were formed millions of years ago when the uk was underneath a tropical sea Dead animals and wild life piled up on the ocean floor and under pressure from sedimentary rocks.
9) explain how glacial Deposition shaped the UK lowlands
The waters could melt and could cause flooding to the Nolans