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 Tectonic Association 
     None specific
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 Formation & Environments 
     Peat forms when plant material accumulates in an anoxic environment where decay is inhibited.  Typically this is in marshes and bogs associated with deltas, flood plains, tidal marshes, etc. 
     If it becomes progressively buried and heated it can eventually turn into bituminous coal, then anthracite coal, and finally graphite. 
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