Types of Rocks

Description

Cambridge IGCSE Geography (Rocks) Mind Map on Types of Rocks, created by lloyd.richards98 on 30/03/2015.
lloyd.richards98
Mind Map by lloyd.richards98, updated more than 1 year ago
lloyd.richards98
Created by lloyd.richards98 almost 9 years ago
282
12

Resource summary

Types of Rocks
  1. Igneous
    1. Formation
      1. Formed by the cooling of molten magma caused by volcanic activity
        1. Magma cools underground > Intrusive
          1. 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
              2. Metamorphic
                1. Formation
                  1. Formed within the Earth's crust
                    1. When another rock is changed by huge amounts of heat and pressure
                    2. Characteristics
                      1. Often exhibit layering called cleavage
                        1. Tough and resistant to erosion
                        2. Examples
                          1. Slate
                            1. SHALE (Sedimentary) > SLATE (Metamorphic)
                              1. Used for roofing
                              2. Marble
                                1. LIMESTONE (Sedimentary) > MARBLE (Metamorphic)
                                  1. Used for buildings and ornate statues
                              3. Sedimentary
                                1. Formation
                                  1. Sediment eroded from land by wind/rivers/ice is deposited in the sea
                                    1. 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
                                        1. Normally weaker than other rocks
                                          1. Some i.e. Limestone are tough
                                          2. Vertical Joints, Horizontal Bedding Planes
                                          3. Examples
                                            1. Limestone
                                              1. Used in cement and glass
                                              2. Chalk
                                                1. Formed from COCCOLITHS
                                                  1. Used to make quicklime and mortar
                                                  2. Sandstone
                                                    1. Consists of Sand particles
                                                      1. 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
                                                  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