Meijer, HAJ

Post, VEA

Van der Plicht, H

English

An explanation is presented for the origin of brackish to saline groundwater in the coastal area of the Netherlands based on geological, chemical (chlorinity), isotopic and geophysical data. A critical review of all possible salinization mechanisms shows that the origin of the brackish water is related to former transgressions. Both the vertical salinity distribution and the carbon-14 activity of the groundwater indicate that connate sea water from the Pliocene to Early Pleistocene is not the source of the brackish to saline waters in the overlying Pleistocene fluvial aquifers. Instead, it derives from Holocene transgressions. The salinization mechanism is discussed in relation to the paleogeographical development during the Holocene and the occurrence of low-permeability strata. Finally, freshening of the aquifers following retreat of the sea is briefly considered.</p

Proceedings - University of Groningen

   University of GroningenThe origin of brackish and saline groundwater in the coastal area of the NetherlandsPost, VEA; Van der Plicht, H; Meijer, HAJPublished in:Netherlands journal of geosciences-Geologie en mijnbouwIMPORTANT NOTE: You are advised to consult the publisher's version (publisher's PDF) if you wish to cite fromit. Please check the document version below.Document VersionPublisher's PDF, also known as Version of recordPublication date:2003Link to publication in University of Groningen/UMCG research databaseCitation for published version (APA):Post, VEA., Van der Plicht, H., & Meijer, HAJ. (2003). The origin of brackish and saline groundwater in thecoastal area of the Netherlands. Netherlands journal of geosciences-Geologie en mijnbouw, 82(2), 133-147.CopyrightOther than for strictly personal use, it is not permitted to download or to forward/distribute the text or part of it without the consent of theauthor(s) and/or copyright holder(s), unless the work is under an open content license (like Creative Commons).The publication may also be distributed here under the terms of Article 25fa of the Dutch Copyright Act, indicated by the “Taverne” license.More information can be found on the University of Groningen website: https://www.rug.nl/library/open-access/self-archiving-pure/taverne-amendment.Take-down policyIf you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediatelyand investigate your claim.Downloaded from the University of Groningen/UMCG research database (Pure): http://www.rug.nl/research/portal. For technical reasons thenumber of authors shown on this cover page is limited to 10 maximum.Download date: 11-10-2022

The origin of brackish and saline groundwater in the coastal area of the Netherlands

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The origin of brackish and saline groundwater in the coastal area of the Netherlands

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Proceedings - University of Groningen