average surface of the deposits above the rising high tide level. A situation 

 with a stronger relief, composed of many salt marsh islands, narrow tidal 

 flats and deep channels is not possible because of the levelling effect of the 

 waves i.i the Wadden Sea. 



No such lag of sediment supply existed during the Subboreal. At that 

 time 'arge areas of the tidal flat belt became silted up to salt marsh level or 

 were even transformed into peat bogs. 



References 



N.B. An extensive literature exists on the Holocene Dutch tidal flat deposits 

 and their environments of formation. The following list contains only some of 

 the more comprehensive papers. They may serve as a key to the other 

 bibliography. 



1936 J. Van Veen. - Onderzoekingen in de Hoofden (with English summary). 



Algemeene Landsdrukkerij, 's Grave nhage, Z52pp. 



1950 C. H. Edelman. - Soils of the Netherlands . North Holland Publishing 



Company, Amsterdam, 178 pp. 



1950 Wadden Symposium. - Tijdschrift Kon. Nederl. Aardr, Genootsch., 



l^VIl, No, 3, pp. 261-408. 



1954 Li. M. J.U. van Straaten. - Composition and structure of recent marine 



sediments in the Netherlands. Leidse Geol. Meded. , 

 XIX, pp. 1-110. 



1954 Symposium Quaternary changes in level, especially in the Netherlands, 



Geol. enMijnb., 16 e Jrg,, no. 6, pp. 147-267. 



1956 A. J. Pannekoek et al. - Geological History of the Netherlands. 



Government Printing and Publishing Office, The Hague, 

 147 pp. 



1957 L.M.J.U. van Straaten and Ph. H. Kuenen. - Accumulation of fine - 



grained sediments in the Dutch Wadden Sea. Geol. 

 enMijnb., 19e Jrg., pp. 329-354. 



1958 The excavation at Velsen (a symposium). - Verhand. Kon. Nederl. 



Geol. Mijnb. Genootsch., Vol. 17. 



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