We have detected that Javascript is not enabled in your browser. The dynamic nature of our site means that Javascript must be enabled to function properly. Please read our terms and conditions for more information.

Next up

Types of Rocks

Description

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

Mind Map by lloyd.richards98, updated more than 1 year ago

	Created by lloyd.richards98 over 9 years ago

305

12

Resource summary

Types of Rocks

Igneous
1. Formation
  1. Formed by the cooling of molten magma caused by volcanic activity
    1. Magma cools underground > Intrusive
    2. Magma cools on ground surface > Extrusive
2. Characteristics
  1. Crystalline
    1. Made up of interlocking crystals
  2. Tough, Hard, Resistant to Erosion
3. Examples
  1. Granite
    1. Widely used for construction and monuments
  2. Basalt
Metamorphic
1. Formation
  1. Formed within the Earth's crust
  2. When another rock is changed by huge amounts of heat and pressure
2. Characteristics
  1. Often exhibit layering called cleavage
  2. Tough and resistant to erosion
3. Examples
  1. Slate
    1. SHALE (Sedimentary) > SLATE (Metamorphic)
    2. Used for roofing
  2. Marble
    1. LIMESTONE (Sedimentary) > MARBLE (Metamorphic)
    2. Used for buildings and ornate statues
Sedimentary
1. Formation
  1. Sediment eroded from land by wind/rivers/ice is deposited in the sea
  2. LITHIFACTION
    1. Sediment is compacted on the sea bed until it forms layers of solid rocks
2. Characteristics
  1. Usually found in layers called BEDS
  2. Normally weaker than other rocks
    1. Some i.e. Limestone are tough
  3. Vertical Joints, Horizontal Bedding Planes
3. Examples
  1. Limestone
    1. Used in cement and glass
  2. Chalk
    1. Formed from COCCOLITHS
    2. Used to make quicklime and mortar
  3. Sandstone
    1. Consists of Sand particles
    2. Used in construction

Show full summary Hide full summary

Want to create your own Mind Maps for free with GoConqr? Learn more.

Similar

GCSE Geography - Fold Mountains - the Alps

Beth Coiley

Geography Coastal Zones Flashcards

Zakiya Tabassum

GCSE Geography - Causes of Climate Change

Beth Coiley

Characteristics and Climate of a hot desert

Adam Collinge

Using GoConqr to study geography

Sarah Egan

Favela Bairro Project- Squatter Settlement case study Changing urban environments

a a

Economic migrates in the EU (Poland to UK migration)

a a

Coastal Zone Glossary

Clare Magor

Water World - Hydrological Cyle Key Terms

Nikki Azevedo

Population Growth

Adam Collinge

Water on Land Keywords

Adrian Ridley