Hydrological and biogeochemical controls on Fe cycling at the Krabbenbeek supratidal/intertidal zone, the Netherlands: Why does the Fe pump sputter

Frequent and unexplained iron enrichments have been localized in buried, Holocene, marine sediments in coastal areas. These buried sediments are nowadays often part of groundwater systems in densely populated deltas. Here, the Krabbenkreek intertidal/supratidal area in the Netherlands is considered as a present analogue for diagenetic processes...

An Early Holocene Tidal Flat in the Southern Bight

Salinity, temperature and age have been determined for Cardium edule shells, collected in the Southern Bight of the North Sea, from their isotopic composition. The results indicate that before c.8100 BP(probably between.10,000 and 8000 BP) a brackish-water tidal-flat area existed in the present Deep Water Channel (chlorinity c.13). Between c...

Reservoir modelling of heterolithic tidal deposits: Sensitivity analysis of an object-based stochastic model

Object-based stochastic modelling techniques are routinely employed to generate multiple realisations of the spatial distribution of sediment properties in settings where data density is insufficient to construct a unique deterministic facies architecture model. Challenge is to limit the wide range of possible outcomes of the stochastic model....

Facies architecture of heterolithic tidal deposits: The Holocene Holland Tidal Basin

The size, shape and spatial position of lithofacies types (or facies architecture) in a tidal estuarine basin are complex and therefore difficult to model. The tidal currents in the basin concentrate sand-sized sediment in a branching pattern of tidal channels and fringing tidal flats. Away from the sandy tidal flats the sediment gradually...