4.1 Geology And Uk

Question 1

Localitation igneous rocks

Answer 1

The Scottish Highlands have spectacular mountains made of old igneous and metamorphic rocks.

Question 2

Localisation in uk of sedimentary rock Sedimentary Rocks in Britain.

Answer 2

Sedimentary Rocks in Britain. Sandstone hills in the northwest Highlands, around 700 million years old. Sandstone layers folded to form an anticline, SW Wales. Mudstone cliffs on the Yorkshire coast, formed in the sea almost 200 million years ago

Question 3

Metamorphic and igneous rock.

Answer 3

Igneous rock , formed by the cooling of magma (molten rock) inside the Earth or on the surface. Sedimentary rocks, formed from the products of weathering by cementation or precipitation on the Earth’s surface. Metamorphic rocks, formed by temperature and pressure changes inside the Earth.

Question 4

Formation of granite and carboniferous limestone

Answer 4

Formed from the remains of organic matter, usually seashells and plants.It was formed under the sea 220-280 million years ago.
It is a hard, grey sedimentary rock, with a large number of joints(vertical cracks) and bedding planes (horizontal cracks)

Question 5

How volcanoes shape the land

Answer 5

The shape of the land. Technically, a volcano is a vent or hole in Earth’s surface through which heated material escapes from underground. … Volcanologists recognize various volcanic landforms, such as shield volcanoes, stratovolcanoes, cinder cones, lava domes, calderas, and lava plateaus.

Question 6

Formation of chalk and slate

Answer 6

• Chalk is a soft, white, powdery limestone consisting mainly of fossil shells of foraminifers
• Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from an original shale-type sedimentary rock composed of clay or volcanic ash through low-grade regional metamorphism

Question 7

How glacial does it shape the glaciers the lands

Answer 7

The base of glacier ice melts because of pressure and friction. This allows water to freeze into cracks in the rocks and when the glacier moves it pulls out chunks to leave a jagged surface.

Question 8

How are sedimentary rocks are formed

Answer 8

Sedimentary rocks are formed when sediment is deposited out of air, ice, wind, gravity, or water flows carrying the particles in suspension. This sediment is often formed when weathering and erosion break down a rock into loose material in a source area.

Question 9

How deposition of glaciers shape the uk lowland

Answer 9

All glacial landforms in the British Isles are fossil landforms. Although the exact number of glacial and interglacial periods in the British Isles is still a matter of scientific debate

Question 10

Chalk is a sedimentary rock made of calcium carbonate.

Answer 10

Chalk is a sedimentary rock made of calcium carbonate.
It is porous and allows water to penetrate into the rock. For this reason, surface streams (winterbournes) are only visible when the rock is saturated.
Dry valleys are a common feature. These were eroded by fast-flowing surface streams towards the end of the last Ice Age.