Nijland, T.G. (author), Dubelaar, C.W. (author), Tolboom, H.J. (author), van Hees, R.P.J. (author), TNO Bouw en Ondergrond (author) Most of the Netherlands a Quaternary delta, local supplies of natural stone suitable for building are rare. These include: Quaternary bog iron ores used in early medieval times (until c. 1200); erratics, deposited in boulder clay during the Saalian ice age in the northern Netherlands and gravel from the river Meuse; Miocene lithified siliceous...
conference paper 2006
