Archaeological prospection of the nearshore and intertidal area using ultra‐high resolution marine acoustic techniques: Results from a test study on the Belgian coast at Ostend‐Raversijde

Abstract The coastal site of Ostend‐Raversijde in Belgium is known for its archaeological artifacts, mainly from Roman and medieval times. In recent years, detailed geophysical and geotechnical investigations have been carried out here to test the efficiency of these techniques for geoarchaeological prospection of the subtidal and intertidal zone. Very high‐resolution 2D subbottom profiling using a parametric echosounder evidenced a highly complex system of paleogullies and tidal channels, some of which can be linked to the medieval peninsula Testerep and the drowned settlement of Walraversijd... Mehr ...

Verfasser: Missiaen, Tine
Evangelinos, Dimitris
Claerhout, Chloe
De Clercq, Maikel
Pieters, Marnix
Demerre, Ine
Dokumenttyp: Artikel
Erscheinungsdatum: 2017
Reihe/Periodikum: Geoarchaeology ; volume 33, issue 3, page 386-400 ; ISSN 0883-6353 1520-6548
Verlag/Hrsg.: Wiley
Sprache: Englisch
Permalink: https://search.fid-benelux.de/Record/base-28874067
Datenquelle: BASE; Originalkatalog
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Link(s) : http://dx.doi.org/10.1002/gea.21656

Abstract The coastal site of Ostend‐Raversijde in Belgium is known for its archaeological artifacts, mainly from Roman and medieval times. In recent years, detailed geophysical and geotechnical investigations have been carried out here to test the efficiency of these techniques for geoarchaeological prospection of the subtidal and intertidal zone. Very high‐resolution 2D subbottom profiling using a parametric echosounder evidenced a highly complex system of paleogullies and tidal channels, some of which can be linked to the medieval peninsula Testerep and the drowned settlement of Walraversijde . For the first time marine seismic and terrestrial electromagnetic induction (EMI) data were fully integrated in the same intertidal area. The parametric echosounder proved a highly effective tool to map the (partly excavated) peat layers and submerged landscape in high detail, even in extremely shallow water. Using a novel multitransducer parametric echosounder (SES‐2000 Quattro), unique 3D imaging of the peat exploitation pattern was possible with unprecedented detail (submeter level). This sets a new standard for shallow water research and opens important new perspectives for geoarchaeological studies in nearshore areas.