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        Belt Supergroup (2)
        
        Missoula Group (1)
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      - Paleoproterozoic
        
        Birimian (2)
        
        Cobalt Group (1)
  - Ventersdorp Supergroup (4)
  - Witwatersrand Supergroup (13)
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- sedimentary petrology (5)
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  - clastic rocks
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- sedimentation (41)
- sediments
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  - marine sediments (5)
- selenium (3)