redoxomorphic stage

redoxomorphic stage

[ri¦däk·sə¦mȯr·fik ‚stāj]
(geochemistry)
The earliest geochemical stage of diagenesis characterized by mineral changes primarily due to oxidation and reduction reactions.
References in periodicals archive ?
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.