Surveying the Netherlands: sampling techniques, maps and their application

Abstract

In 1953, under J. D. de Jong's supervision, a new mapping programme was started to meet the expected demand for more detailed information. At that time, the only available method of collecting data was based on rather simple hand-operated sampling equipment. Technical developments as well as the demand for more detail information led to the application of improved sampling techniques and geophysical methods. More information is now presented on the maps whereas other types of maps, such as the offshore geological maps, have been added to the programme. As expected, the demand for geological information today is great. The present article reviews the surveying methods applied by the Survey and the maps which are in preparation. Some case histories are given to illustrate the application of the results of the mapping programme.