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      - Zechstein (1)
  - Sauk Sequence (1)
  - Silurian
    - Lower Silurian
      - Llandovery (4)
      - Wenlock
        
        Much Wenlock Limestone (1)
    - Upper Silurian
      - Ludlow
        
        Gorstian (1)
        
        Ludfordian (1)
      - Pridoli (2)
  - Supai Formation (1)
  - Taiyuan Formation (1)
  - Talchir Formation (1)
  - upper Paleozoic
    - Fountain Formation (1)
- Phanerozoic (5)
- Precambrian
  - Archean (4)
  - Carrizo Mountain Formation (1)
  - Hadean (2)
  - Hazel Formation (1)
  - Purcell System (1)
  - upper Precambrian
    - Proterozoic
      - Mesoproterozoic
        
        Belt Supergroup (1)
      - Neoproterozoic
        
        Cryogenian (1)
        
        Ediacaran (4)
        
        Torridonian (2)
        
        Vendian (3)
      - Paleoproterozoic (7)
      - Roan Supergroup (1)
  - Vadito Group (1)
- Rhenohercynian (3)
igneous rocks
- igneous rocks
  - carbonatites (1)
  - kamafugite (1)
  - peperite (1)
  - plutonic rocks
    - diabase (1)
    - diorites
      - tonalite (2)
    - gabbros (3)
    - granites
      - charnockite (1)
      - I-type granites (3)
      - leucogranite (1)
      - rapakivi (1)
      - S-type granites (4)
    - granodiorites (1)
    - lamproite (1)
    - lamprophyres
      - minette (1)
    - monzodiorite (1)
    - monzonites (1)
    - pegmatite (5)
    - quartz monzonite (2)
    - syenites
      - alkali syenites (1)
      - nepheline syenite
        
        agpaite (1)
    - ultramafics
      - chromitite (1)
      - peridotites
        
        harzburgite (2)
  - porphyry (1)
  - volcanic rocks
    - andesites (5)
    - basalts
      - alkali basalts (1)
      - mid-ocean ridge basalts (2)
      - ocean-island basalts (1)
    - basanite (1)
    - dacites (4)
    - glasses
      - obsidian (1)
      - volcanic glass (1)
    - pyroclastics
      - ash-flow tuff (3)
      - hyaloclastite (1)
      - ignimbrite (6)
      - tuff (11)
      - welded tuff (3)
    - rhyodacites (2)