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Mind map

Igneous Rocks

David Ouyang English

Map content

Igneous Rocks

cooling the slowest
- magma
  - a depth within the Earth
    - coarse-grained
      - basaltic
        gabbro
      - ultrabasic
        peridotite
      - granitic
        granite
      - intermediate
        diorite
    - intrusive
cooling relatively slowly
- magma
  - extremely near the surface
    - small crystal formed
      - fine-grained
        granitic
        rhyolite
        intermediate
        andesite
        basaltic
        basalt
      - vesicular
        granitic/intermediate
        pumice
        basaltic
        scoria
    - extrusive
cooling fast
- lava
  - on the surface
    - glassy
      - crystal doesn't form at all
      - obsidian
    - extrusive
complex cooling history
- cooling slowly first then suddenly fast
  - magma
    - a depth within the Earth and then move toward the surface
      - porphyritic
        basaltic
        porphyritic basalt or gabbro
        intermediate
        porphyritic andesite or diorite
        granitic
        porphyritic rhyolite or granite
    - intrusive (may extrusive afterward)

Information

Description: Mind Map on Igneous Rocks, created by David Ouyang on 07/10/2014.
Created by: David Ouyang
Views: 6
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