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- problematic fossils
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geochronology methods
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geologic age
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    - Paleogene
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        lower Eocene (1)
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        upper Oligocene
        
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  - upper Cenozoic
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  - Jurassic
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    - Lower Jurassic
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        lower Toarcian (1)
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    - Upper Jurassic
      - Volgian (1)
  - Triassic
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    - Lower Triassic
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    - Upper Triassic
      - Carnian
        
        Ischigualasto Formation (1)
      - Keuper (1)
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      - Norian (1)
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      - Stormberg Series (9)
  - upper Mesozoic (1)
- MIS 2 (2)
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- Paleozoic
  - Cambrian
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        Fortunian (1)
    - Middle Cambrian
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        Tournaisian (1)
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    - Upper Carboniferous
      - Westphalian (2)
  - Devonian
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      - Siegenian (1)
    - Middle Devonian
      - Eifelian (4)
      - Givetian (2)
    - Upper Devonian
      - Famennian (1)
      - Frasnian (1)
  - Itarare Subgroup (1)
  - lower Paleozoic (9)
  - Ordovician
    - Lower Ordovician (1)
    - Upper Ordovician
      - Ashgillian (6)
      - Caradocian (1)
      - Hirnantian (7)
  - Permian
    - Ecca Group (47)
    - Guadalupian
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      - Roadian (1)
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    - Lower Permian
      - Cisuralian
        
        Artinskian (1)
        
        Kungurian (3)
      - Wolfcampian
        
        Hueco Limestone (1)
    - Middle Permian (9)
    - Upper Permian
      - Lopingian
        
        Changhsingian (1)
      - Permian-Triassic boundary (20)
    - Vryheid Formation (12)
    - Whitehill Formation (11)
  - Silurian
    - Lower Silurian
      - Llandovery
        
        Rhuddanian (1)
  - upper Paleozoic
    - Dwyka Formation (43)
- Phanerozoic (11)
- Precambrian
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    - Fig Tree Group (8)
    - J-M Reef (2)
    - Kromberg Formation (2)
    - Mesoarchean (11)
    - Neoarchean
      - Amitsoq Gneiss (1)
    - Paleoarchean
      - Hooggenoeg Formation (5)
    - Swaziland Supergroup (3)
    - Warrawoona Group (2)
  - Brockman Iron Formation (3)
  - Central Rand Group (29)
  - Fortescue Group (2)
  - Hadean (3)
  - Hamersley Group (6)
  - Onverwacht Group (13)
  - Pongola Supergroup (6)
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  - Stillwater Complex (7)
  - Swaziland Sequence (1)
  - Transvaal Supergroup (68)
  - upper Precambrian
    - Proterozoic
      - Damara System (9)
      - Great Oxidation Event (2)
      - Huronian (3)
      - Malmani Subgroup (10)
      - Mesoproterozoic (44)
      - Neoproterozoic
        
        Ediacaran (15)
        
        Vendian (7)
      - Paleoproterozoic
        
        Birimian (1)
        
        Rooiberg Group (7)
        
        Rustenburg Layered Suite (13)
        
        Siderian (1)
      - Pretoria Group (14)
      - Wolkberg Group (1)
  - Ventersdorp Supergroup (39)
  - Waterberg System (9)
  - Witwatersrand Supergroup (58)
igneous rocks
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- igneous rocks
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      - gabbroic anorthosite (1)
    - diabase (36)
    - diorites
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      - tonalite
        
        enderbite (2)
      - trondhjemite (4)
    - gabbros
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      - olivine gabbro (1)
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    - granites
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      - aplite (2)
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      - felsite (2)
      - I-type granites (2)
      - leucogranite (4)
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      - rapakivi (2)
      - S-type granites (3)
    - granodiorites (7)
    - ijolite (1)
    - lamproite (4)
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    - pegmatite (29)
    - sovite (1)
    - syenites
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      - bostonite (1)
      - nepheline syenite
        
        foyaite (3)
        
        lujavrite (1)
      - quartz syenite (1)
    - ultramafics
      - chromitite (49)
      - peridotites
        
        dunite (14)
        
        garnet lherzolite (2)
        
        garnet peridotite (2)
        
        harzburgite (16)
        
        lherzolite (8)
      - pyroxenite
        
        clinopyroxenite (1)
        
        garnet pyroxenite (1)
        
        orthopyroxenite
        
        bronzitite (1)
        
        websterite (3)
  - porphyry (2)
  - volcanic rocks
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    - andesites
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    - basalts
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        trachybasalts (1)
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      - shoshonite (1)
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    - dacites (2)
    - glasses (2)
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    - melilitite (2)
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    - pyroclastics
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      - ignimbrite (4)
      - pumice (1)
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    - rhyolites
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    - trachytes (4)
- ophiolite (6)
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metamorphic rocks
- metamorphic rocks
  - amphibolites (11)
  - cataclasites (1)
  - eclogite (19)
  - garnetite (1)
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    - granite gneiss (2)
    - orthogneiss (4)
  - granulites (18)
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      - lunar breccia (1)
  - marbles (2)
  - metaigneous rocks
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    - metadacite (1)
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  - metasedimentary rocks
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    - metapelite (7)
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  - metasomatic rocks
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meteorites
- meteorites
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        L chondrites (2)
minerals
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- arsenides
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- halides
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- minerals (74)
- native elements
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- silicates
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        actinolite (2)
        
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        tremolite (2)
        
        tschermakite (2)
      - orthoamphibole
        
        anthophyllite (1)
        
        gedrite (1)
        
        holmquistite (1)
    - bavenite (1)
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    - pyroxene group
      - clinopyroxene
        
        aegirine (4)
        
        aegirine-augite (1)
        
        augite (2)
        
        chrome diopside (1)
        
        diopside (4)
        
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        spodumene (3)
      - orthopyroxene
        
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        hypersthene (1)
    - tobermorite (3)
    - wollastonite group
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      - wollastonite (4)
    - xonotlite (1)
  - framework silicates
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        K-feldspar (2)
        
        microcline (4)
        
        perthite (1)
        
        sanidine (1)
      - plagioclase
        
        albite (2)
        
        anorthite (2)
    - nepheline group
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    - silica minerals
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      - quartz (27)
      - stishovite (1)
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      - stilbite (1)
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      - braunite (6)
      - britholite group
        
        britholite (1)
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      - datolite group
        
        datolite (2)
      - garnet group
        
        almandine (3)
        
        andradite (2)
        
        grossular (3)
        
        hydrogarnet
        
        hydrogrossular (1)
        
        majorite (3)
        
        pyrope (5)
        
        spessartine (2)
        
        uvarovite (1)
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      - mullite (1)
      - olivine group
        
        fayalite (1)
        
        forsterite (3)
        
        olivine (15)
        
        ringwoodite (1)
      - sillimanite (4)
      - staurolite (1)
      - titanite group
        
        titanite (5)
      - zircon group
        
        coffinite (2)
        
        thorite (1)
        
        zircon (75)
    - sorosilicates
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      - bertrandite (1)
      - epidote group
        
        allanite (1)
        
        epidote (2)
      - kornerupine (1)
      - melilite group
        
        melilite (1)
      - vesuvianite (5)
      - zunyite (1)
  - ring silicates
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    - cordierite (2)
    - emerald (1)
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    - milarite group
      - osumilite (2)
    - tourmaline group (1)
  - sheet silicates
    - apophyllite (1)
    - chlorite group
      - chlorite (5)
    - clay minerals
      - kaolinite (8)
      - smectite (7)
      - vermiculite (2)
    - gillespite (1)
    - gyrolite (1)
    - illite (7)
    - margarite (2)
    - mica group
      - biotite (11)
      - glauconite (1)
      - muscovite (9)
      - paragonite (1)
      - phlogopite (18)
    - pyrophyllite (3)
    - rectorite (1)
    - sepiolite (1)
    - serpentine group
      - antigorite (1)
      - chrysotile (3)
      - cronstedtite (1)
      - lizardite (1)
      - serpentine (3)
    - stilpnomelane (3)
    - talc (2)
- sulfates
  - barite (3)
  - ettringite (3)
  - gypsum (1)
  - jarosite (1)
  - natroalunite (2)
- sulfides
  - argentite (1)
  - arsenopyrite (2)
  - bornite (1)
  - chalcopyrite (9)
  - cooperite (5)
  - copper sulfides (4)
  - galena (7)
  - iron sulfides (3)
  - joseite (1)
  - laurite (5)
  - mackinawite (5)
  - millerite (1)
  - molybdenite (2)
  - nickel sulfides (4)
  - pentlandite (5)
  - pyrite (13)
  - pyrrhotite (9)
  - siegenite (1)
  - sphalerite (5)
  - troilite (3)
- sulfosalts (1)
- tellurides
  - altaite (1)
  - joseite (1)
- tungstates
  - scheelite (2)
- ultrabasite (2)
- vanadates (2)
- wehrlite (2)
Primary terms
- absolute age (198)
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- Africa
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