Redoxomorphic stage | Article about redoxomorphic stage by The Free Dictionary
redoxomorphic stage[ri¦däk·sə¦mȯr·fik ‚stāj]
The earliest geochemical stage of diagenesis characterized by mineral changes primarily due to oxidation and reduction reactions.
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The redoxomorphic stage is mostly responsible for the bulk final colour of the rock, while later changes in rock colour are smaller.
During the redoxomorphic stage iron is moved into the ferrous state and sulphur is fixed as pyrite, which is scattered throughout the rock.