Eemian to Early Weichselian regional and local vegetation development and sedimentary and geomorphological controls, Amersfoort Basin, the Netherlands

Two new records from the Amersfoort glacial basin are investigated by means of pollen analysis. The cores are situated in the deeper part, close to the original Eemian stratotype Amersfoort 1 (Zagwijn, 1961) and at the margin of the basin. The aim is to reconstruct the Eemian and Early Weichselian vegetation development and to explore the impact...

Late Weichselian and Holocene climatic and local controls on aeolian deposition inferred from decomposing grain size-shape distributions

Aeolian deposits form rich archives of climatic and environmental changes, which have not been fully explored. In this study, results from end-member modelling of grain size-shape distributions were combined with palynological records to reconstruct sedimentary environments and transport mechanisms, and to distinguish climatically-caused from...

Geologische fietsexcursie Utrechtse Heuvelrug en Kromme Rijngebied

Deze brochure maakt deel uit van een reeks geologische wandel- en fietsroutes. Hiermee wil de Geologische Dienst Nederland u op een laagdrempelige manier laten verwonderen over de Nederlandse ondergrond. De brochure begint met een algemene aardkundige inleiding van het gebied. Deze inleiding geeft u snel een overzicht van de belangrijkste...

The geological significance of novel anthropogenic materials: Deposits of industrial waste and by-products

Industrial wastes and by-products are increasingly (re-)used as filling material in constructions. To enhance awareness among the geological community of the growing and widespread occurrence of deposits that contain these “novel anthropogenic materials”, this paper reviews three volumetrically important materials: (1) ash remaining from the...

Geologische karakterisatie en kartering van de Waalreklei en het eerste watervoerend pakket t.b.v. de verbreding van de A27 bij Utrecht: Update 2019

3D urban subsurface modelling and visualization. A review of good practices and techniques to ensure optimal use of geological information in urbamn planning

This report is the result of COST Action TU1206 Working Group 2, Work package 2.3, and focusses on 3D urban subsurface modelling and visualisation. The major aims of this report are: 1) evaluating current techniques and identify good practices / best efforts in 3D geological modelling and visualisation of the urban subsurface, based on case...

Modelling man-made ground to link the above- and below- ground urban domains

This report describes the results of STSM TU1206-36204. During a visit to GEUS (DK) between 23 and 27 January 2017, Jeroen Schokker (TNO-GSN, NL) has focussed on the modelling of man-made ground as a linking pin between the above- and below-ground urban domains. Key results include: • Man-made ground is all-inclusive and its definition and...

Mapping buried holocene landscapes. Past lowland environments, palaeoDEMs and preservation in GIS

In a geological GIS-data recombination project, a digital map was produced that contains information on the Netherlands’ former coastal and delta plain landscapes over the last 14,000 years: the Holocene and the very end of the Pleistocene. The polygon map product is accompanied by a set of palaeoDEMs (Digital Elevation Models) indicating the...

Lateglacial and early Holocene vegetation development and fluvial system changes in the northern Meuse valley, the Netherlands: a review of palynological data

This study provides an overview of existing palynological and chronological data of the northern Meuse valley which have been collected over recent decades. The palynological data were used to make a vegetation reconstruction in time and space for the Lateglacial and early Holocene. The vegetation development is strongly influenced by the rapid...

LAPD - Lating American Pollen Database

Opening up the subsurface for the cities of tomorrow. considering access to subsurface knowledge - Evaluation of practices and techniques

The subsurface is an important constituent of the physical environment of cities. We live on top of it; building and construction have to deal with the structure and properties of the subsurface, and occasionally with the hazards it presents; and we benefit from, and in some cases are dependent, on many of its ecosystem services. Cities not only...

3D subsurface modelling reveals the shallow geology of Amsterdam

Amsterdam is situated on the coastal-deltaic plain of the western Netherlands. Its geographical position brought the city prosperity, but also created huge challenges associated with heterogeneous and often adverse ground conditions. This paper explores the geology of Amsterdam to a depth of c. 100 m, based on the output of the 3D geological...

3D geology in a 2D country: Perspectives for geological surveying in the Netherlands

Over the last ten to twenty years, geological surveys all over the world have been entangled in a process of digitisation. Their paper archives, built over many decades, have largely been replaced by electronic databases. The systematic production of geological map sheets is being replaced by 3D subsurface modelling, the results of which are...

Geoscientific research in the Wadden Sea region (editorial)

Middle Palaeolithic artefact migration due to periglacial processes; a geological investigation into near-surface occurrence of Palaeolithic artefacts (Limburg-Eastern Brabant coversand region, the Netherlands)

The original distribution pattern of Middle-Palaeolithic artefacts may be affected by tectonic movement, sedimentation and periglacial processes. This is e.g. the case in the coversand area of Limburg and Eastern Brabant (NL), where the occurrence of numerous finds in a SW-NE trending zone across the Roer Valley Graben is considered enigmatic....

A test case for anomalous fading correction in IRSL dating

Infrared-stimulated luminescence (IRSL) dating of feldspars has the potential to date deposits beyond the age range of quartz optical (OSL) dating. Successful application of feldspar IRSL dating is, however, often precluded due to anomalous-fading, the tunnelling of electrons from one defect site to another. In this paper we test procedures...

Regional sediment deficits in the Dutch lowlands: Implications for long-term land-use options

Background, Aim and Scope. Coastal and river plains are the surfaces of depositional systems, to which sediment input is a parameter of key-importance. Their habitation and economic development usually requires protection with dikes, quays, etc., which are effective in retaining floods but have the side effect of impeding sedimentation in their...

Introduction of the boxtel formation and implications for the quaternary lithostratigraphy of the Netherlands

Application of the traditional lithostratigraphic framework to subdivide the Middle- and Upper-Quaternary locally-derived fine-grained deposits in the Netherlands is problematic. Deposits of many formations cannot be distinguished from each other based on lithological characteristics and stratigraphic position alone. To overcome this problem, we...