Types of Rocks

lloyd.richards98
Mind Map by lloyd.richards98, updated more than 1 year ago
lloyd.richards98
Created by lloyd.richards98 almost 5 years ago
89
11

Description

Cambridge IGCSE Geography (Rocks) Mind Map on Types of Rocks, created by lloyd.richards98 on 03/30/2015.

Resource summary

Types of Rocks
1 Igneous
1.1 Formation
1.1.1 Formed by the cooling of molten magma caused by volcanic activity
1.1.1.1 Magma cools underground > Intrusive
1.1.1.2 Magma cools on ground surface > Extrusive
1.2 Characteristics
1.2.1 Crystalline
1.2.1.1 Made up of interlocking crystals
1.2.2 Tough, Hard, Resistant to Erosion
1.3 Examples
1.3.1 Granite
1.3.1.1 Widely used for construction and monuments
1.3.2 Basalt
2 Metamorphic
2.1 Formation
2.1.1 Formed within the Earth's crust
2.1.2 When another rock is changed by huge amounts of heat and pressure
2.2 Characteristics
2.2.1 Often exhibit layering called cleavage
2.2.2 Tough and resistant to erosion
2.3 Examples
2.3.1 Slate
2.3.1.1 SHALE (Sedimentary) > SLATE (Metamorphic)
2.3.1.2 Used for roofing
2.3.2 Marble
2.3.2.1 LIMESTONE (Sedimentary) > MARBLE (Metamorphic)
2.3.2.2 Used for buildings and ornate statues
3 Sedimentary
3.1 Formation
3.1.1 Sediment eroded from land by wind/rivers/ice is deposited in the sea
3.1.2 LITHIFACTION
3.1.2.1 Sediment is compacted on the sea bed until it forms layers of solid rocks
3.2 Characteristics
3.2.1 Usually found in layers called BEDS
3.2.2 Normally weaker than other rocks
3.2.2.1 Some i.e. Limestone are tough
3.2.3 Vertical Joints, Horizontal Bedding Planes
3.3 Examples
3.3.1 Limestone
3.3.1.1 Used in cement and glass
3.3.2 Chalk
3.3.2.1 Formed from COCCOLITHS
3.3.2.2 Used to make quicklime and mortar
3.3.3 Sandstone
3.3.3.1 Consists of Sand particles
3.3.3.2 Used in construction
Show full summary Hide full summary

Similar

GCSE Geography - Fold Mountains - the Alps
Beth Coiley
Geography Coastal Zones Flashcards
Zakiya Tabassum
GCSE Geography - Causes of Climate Change
Beth Coiley
Using GoConqr to study geography
Sarah Egan
Characteristics and Climate of a hot desert
Adam Collinge
Favela Bairro Project- Squatter Settlement case study Changing urban environments
a a
Economic migrates in the EU (Poland to UK migration)
a a
Water World - Hydrological Cyle Key Terms
Nikki Azevedo
Coastal Zone Glossary
Clare Magor
Population Growth
Adam Collinge
Water on Land Keywords
Adrian Ridley