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elements, isotopes
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- metals
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- oxygen
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fossils
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geochronology methods
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geologic age
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        upper Miocene
        
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        Absaroka Supergroup (1)
        
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        lower Eocene (2)
        
        middle Eocene
        
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        Umpqua Formation (1)
      - Oligocene
        
        upper Oligocene (4)
      - Paleocene
        
        lower Paleocene
        
        K-T boundary (1)
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- Mesozoic
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      - Frontier Formation (1)
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    - Vraconian (1)
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  - Triassic
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- Paleozoic
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  - Cambrian
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  - Carboniferous
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        Visean (3)
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      - Upper Mississippian
        
        Fayetteville Formation (1)
        
        Serpukhovian (1)
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    - Pennsylvanian
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        Bashkirian (1)
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    - Upper Carboniferous
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  - lower Paleozoic
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  - Ordovician
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    - Tetagouche Group (2)
  - Permian
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    - Whitehill Formation (1)
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  - Silurian
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    - Lower Silurian
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- Precambrian
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    - Taihua Group (2)
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  - upper Precambrian
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      - Mesoproterozoic
        
        Aldridge Formation (1)
        
        Belt Supergroup (1)
        
        Laxfordian (2)
      - Neoproterozoic
        
        Brioverian (1)
        
        Ediacaran (4)
        
        Otavi Group (1)
        
        Riphean (1)
      - Paleoproterozoic
        
        Aphebian (1)
        
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      - Pretoria Group (1)
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        Xiong'er Group (1)
  - Ventersdorp Supergroup (1)
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igneous rocks
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    - gabbros
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    - granites
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      - nepheline syenite
        
        agpaite (1)
        
        miaskite (1)
      - quartz syenite (2)
    - ultramafics
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        garnet peridotite (1)
        
        harzburgite (1)
        
        lherzolite (5)
        
        spinel lherzolite (1)
      - pyroxenite
        
        clinopyroxenite (1)
        
        garnet pyroxenite (1)
        
        websterite (2)
  - porphyry (7)
  - volcanic rocks
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    - basalts
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        hawaiite (4)
        
        mugearite (4)
        
        trachybasalts (2)
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      - olivine basalt (2)
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    - basanite
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    - phonolites (5)
    - pyroclastics
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      - tuff (4)
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- ophiolite (9)
- wehrlite (2)
metamorphic rocks
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  - metaigneous rocks
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    - skarn (15)
  - metavolcanic rocks (3)
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meteorites
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        SNC Meteorites
        
        shergottite (1)
minerals
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- arsenides
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- halides
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  - fluorides
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- minerals (2)
- native elements
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- oxides
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- phosphates
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- platinum minerals (1)
- silicates
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  - chain silicates
    - amphibole group
      - clinoamphibole
        
        hornblende (4)
    - pyroxene group
      - clinopyroxene
        
        augite (1)
        
        chrome diopside (1)
      - orthopyroxene (3)
  - framework silicates
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      - alkali feldspar
        
        adularia (1)
        
        hyalophane (1)
        
        K-feldspar (10)
        
        sanidine (2)
      - barium feldspar
        
        hyalophane (1)
      - plagioclase
        
        albite (1)
    - leucite (1)
    - silica minerals
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  - orthosilicates
    - nesosilicates
      - garnet group
        
        hydrogarnet (1)
      - olivine group
        
        olivine (7)
      - sillimanite (1)
      - titanite group
        
        titanite (4)
      - topaz (2)
      - zircon group
        
        zircon (75)
  - ring silicates
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    - tourmaline group
      - dravite (1)
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  - sheet silicates
    - chlorite group
      - chlorite (4)
      - clinochlore (1)
    - clay minerals
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    - mica group
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- sulfates
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- sulfides
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- tungstates
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- wehrlite (2)
Primary terms
- absolute age (184)
- Africa
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        High Atlas (1)