Diagenetic overprinting

After a fault seal has formed, its sealing capacity may be altered by changes not directly associated with the formation of the fault itself. Such changes include the direction of the horizontal stresses, renewed slip, rapid subsidence/uplift, and diagenetic overprint. Some of these subsequent changes are more predictable than others and it is important to recognize their limits of predictability. 

The above facts suggest that porosity modification by cementation is much more significant during subsidence than during uplift in the Swiss Molasse basin, therefore conclusions based on distribution and chemistry of modem formation waters concerning diagenetic overprinting in other inverted foreland basins may have to be handled with some care. 

Which factors may cause a lock-in of a diagenetic front in the sea bed and thereby lead to the diagenetic overprinting of paleoceanographic signals in a specific sediment horizon ... 

Riedinger, N., 2005. Preservation and diagenetic overprint of geochemical and geophysical signals in ocean margin sediments related to depositional dynamics. Berichte, 242, Fachbereich Geowis-senschaften, Universitat Bremen, 91 pp. 

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