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geochronology methods
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geologic age
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      - Santa Susana Formation (2)
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metamorphic rocks
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minerals
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      - titanite group
        
        titanite (1)
      - zircon group
        
        zircon (54)
    - sorosilicates
      - epidote group
        
        piemontite (1)
      - vesuvianite (1)
  - ring silicates
    - tourmaline group
      - schorl (1)
  - sheet silicates
    - clay minerals
      - kaolinite (1)
      - smectite (1)
    - illite (2)
    - mica group
      - biotite (3)
      - glauconite (2)
      - muscovite (5)
      - phengite (3)
    - palygorskite (1)
    - serpentine group
      - antigorite (1)
      - chrysotile (1)
      - lizardite (2)
      - serpentine (1)
- sulfates
  - alunite (2)
  - gypsum (1)
- sulfides
  - arsenopyrite (1)
  - molybdenite (3)
  - pyrite (4)
- tungstates
  - wolframite (1)
- wehrlite (2)
Primary terms
- absolute age (81)
- Africa
  - African Platform (1)
  - East Africa
    - Djibouti (1)
    - Kenya (1)
  - Nile Valley (1)
  - North Africa
    - Algeria
      - Berkine Basin (1)
      - Great Kabylia (1)
      - Kabylia (1)
    - Atlas Mountains
      - Moroccan Atlas Mountains
        
        Anti-Atlas (1)
        
        High Atlas (4)
        
        Middle Atlas (2)
    - Egypt
      - Eastern Desert (2)
      - Fayum Depression (1)
      - Sinai Egypt (1)
    - Ghadames Basin (1)
    - Libya
      - Sirte Basin (1)
    - Maghreb (7)
    - Morocco
      - Moroccan Atlas Mountains
        
        Anti-Atlas (1)
        
        High Atlas (4)
        
        Middle Atlas (2)
      - Rif
        
        Beni Bouchera (1)
    - Tell (1)
    - Tunisia
      - El Kef Tunisia (7)
  - Sahara (2)
  - Southern Africa
    - Karoo Basin (1)
    - South Africa
      - Eastern Cape Province South Africa (1)
  - West Africa
    - Mauritanides (1)
    - Niger (1)
  - West African Craton (1)
- Antarctica
  - Antarctic ice sheet (1)
  - West Antarctica (1)
- Arctic Ocean
  - Canada Basin (1)
  - Laptev Sea (3)
  - Norwegian Sea (1)
- Arctic region
  - Greenland
    - Kuhn Island (1)
  - Russian Arctic (3)
  - Svalbard
    - Spitsbergen (2)
- Asia
  - Altai Mountains
    - Gorny Altai (1)
  - Altai Russian Federation
    - Gorny Altai (1)
  - Arabian Peninsula