- Natural versus anthropogenic genesis of mardels on the Gutland plateau
- a geoecological study of mysterious landforms
- Number of pages
- Saarbrücken: LAP Lambert Academic Publishing
- Document type
- Faculty of Science (FNWI)
- Institute for Biodiversity and Ecosystem Dynamics (IBED)
Mardels, small closed depressions, are distinctive landforms on the Luxembourger Gutland plateau. In the present landscape most mardels are shallow fens, filled with colluvial sediments. The genesis of mardels has been studied intensively, inside and outside Luxembourg. In research reports published before 2000, a natural genesis has been suggested. In more recent publications the researchers suggested also anthropogenic causes.
In the Gutland, mardels occur on various substrates. Mardels on the Strassen marls (li3) are abandoned quarries, related to clay excavation in Roman Time; (li2) the clay was deposited in depressions, related to joints in the underlying Luxembourger sandstone formation. Mardels on the Keuper marls (km1,3) are originally subsidence basins, related to subsurface dissolutions of gypsum lenses and veins, filled with colluvial clay. The results of pollen analysis and archaeometrical tests point to Roman extraction of mardel clay for the production of pottery. In conclusion, the natural depressions have been enlarged to the present mardels. After the depart of the Romans, the sedimentation of clayey colluvium restarted in the abandoned quarries.
- Other links
- Publisher site
If you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating your reasons. In case of a legitimate complaint, the Library will make the material inaccessible and/or remove it from the website. Please Ask the Library, or send a letter to: Library of the University of Amsterdam, Secretariat, Singel 425, 1012 WP Amsterdam, The Netherlands. You will be contacted as soon as possible.