By Robert P. W. Visser, Jacques L. R. Touret
The papers gathered during this quantity, given at a Dutch historical past of technology symposium, current a old survey of Dutch contributions to earth technological know-how. themes lined comprise: the pioneering stratigraphic stories of the eighteenth-century naturalist Francq van Berkhey; the 1863 geology lectures of Staring and his geological map of the Netherlands; the Maastricht Cretaceous unearths within the emergence of Dutch vertebrate palaeontology; and the founding of flooring water hydrology within the Netherlands.The booklet additionally gains hallmark reviews through Dutch students: a formerly unpublished mineralogical treatise through Wiechmann, and a learn of the suitability of Ha?y's crystal versions to spot minerals. those accrued papers jointly shape a sign contribution to the Dutch historical past of technology.
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Extra resources for Dutch Pioneers in Earth Sciences (Edita - History of Science and Scholarship in the Netherlands)
A description clearly referring to the banks of the breaker zone and beyond follows. Reference is made also to ripple marks. Borings on the beach, made on ‘High Order’ (probably the Staten van Holland), had shown that clay occurs below - feet of sand, at the same level as in the Katwijk sand pit. Fig. , no. represents an example of the various beds found below the beach and their lateral variation. The eastern sand region, reaching from Naarden into the Gooi district and outside of Holland into Gelderland and further, was characterised by heath and an uneven surface, consisting of the hills themselves or of sand dunes (Dutch: ‘klingen’).
The deepest known beds are sand with some overlying gravel, at depths of 203 feet and more below Ibidem, p. -. He had also paid attention to this phenomenon in his prize-winning essay (note ). Ibidem, p. - and plate III. Ibidem, p. seq. Ibidem, p. -. Ibidem, p. . ’ Amsterdam. These beds must be extensive, and also the overlying thick clay bed, containing seashells in its upper part, that proves flooding by the sea.
Drawn after nature, or the detailed section, 130 km long across Holland, constructed from point observations, and very different from the schematic profiles of early geological literature. Moreover, this profile (Fig. ) is probably the oldest section across such a large area. Berkhey must have been a good observer in the field and this means that he was not afraid of getting his shoes dirty. A. von Zittel, Geschichte der Geologie und Palaeontologie (München/Leipzig, ) p. . ’ described how he looked for a suitable place for his experiment on peat formation until he found a place where he sank ankle-deep in the mud.