Understanding the mechanisms of groundwater recharge and flow in periglacial environments : new insights from the Ledo-Paniselian aquifer in Belgium
The Ledo-Paniselian aquifer in Belgium has been proposed to offer unique opportunities to study groundwater recharge and flow in periglacial conditions during the Last Glacial Maximum (LGM), due to its location in the permanent permafrost area, south of the ice sheet at that time. A palaeoclimatic r...
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ftunivgent:oai:archive.ugent.be:8722887 2023-06-11T04:12:33+02:00 Understanding the mechanisms of groundwater recharge and flow in periglacial environments : new insights from the Ledo-Paniselian aquifer in Belgium Walraevens, Kristine Fernández Lagunas, Albert Blaser, Petra Aeschbach, Werner Vandenbohede, Alexander Van Camp, Marc 2021 application/pdf https://biblio.ugent.be/publication/8722887 http://hdl.handle.net/1854/LU-8722887 https://doi.org/10.1016/j.jconhyd.2021.103819 https://biblio.ugent.be/publication/8722887/file/8722898 eng eng https://biblio.ugent.be/publication/8722887 http://hdl.handle.net/1854/LU-8722887 http://dx.doi.org/10.1016/j.jconhyd.2021.103819 https://biblio.ugent.be/publication/8722887/file/8722898 No license (in copyright) info:eu-repo/semantics/restrictedAccess JOURNAL OF CONTAMINANT HYDROLOGY ISSN: 0169-7722 ISSN: 1873-6009 Earth and Environmental Sciences NOBLE-GASES METHANE PERMAFROST SYSTEM journalArticle info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2021 ftunivgent https://doi.org/10.1016/j.jconhyd.2021.103819 2023-05-10T22:53:42Z The Ledo-Paniselian aquifer in Belgium has been proposed to offer unique opportunities to study groundwater recharge and flow in periglacial conditions during the Last Glacial Maximum (LGM), due to its location in the permanent permafrost area, south of the ice sheet at that time. A palaeoclimatic record had been set up previously for this aquifer, consisting of major ion chemistry, stable isotopes, radiocarbon and noble gases. In this paper, methane data have been used to further refine the paleoclimatic model, along with revisiting in detail the set of chemical data, focusing on the area where groundwaters, recharged around the LGM, are known to occur. It was found that the high methane concentrations corroborate the hypothesis of groundwater recharge taking place during permafrost melting, from methane-bubbling lakes that had developed to the south of an eolian sand ridge. A relict flow path, existing in the aquifer during some period as permafrost was thawing, has been established, starting from these temporary recharge areas, based on various chemical parameters, radiocarbon model ages and noble gas recharge temperatures. Article in Journal/Newspaper Ice Ice Sheet permafrost Ghent University Academic Bibliography Journal of Contaminant Hydrology 241 103819 |
institution |
Open Polar |
collection |
Ghent University Academic Bibliography |
op_collection_id |
ftunivgent |
language |
English |
topic |
Earth and Environmental Sciences NOBLE-GASES METHANE PERMAFROST SYSTEM |
spellingShingle |
Earth and Environmental Sciences NOBLE-GASES METHANE PERMAFROST SYSTEM Walraevens, Kristine Fernández Lagunas, Albert Blaser, Petra Aeschbach, Werner Vandenbohede, Alexander Van Camp, Marc Understanding the mechanisms of groundwater recharge and flow in periglacial environments : new insights from the Ledo-Paniselian aquifer in Belgium |
topic_facet |
Earth and Environmental Sciences NOBLE-GASES METHANE PERMAFROST SYSTEM |
description |
The Ledo-Paniselian aquifer in Belgium has been proposed to offer unique opportunities to study groundwater recharge and flow in periglacial conditions during the Last Glacial Maximum (LGM), due to its location in the permanent permafrost area, south of the ice sheet at that time. A palaeoclimatic record had been set up previously for this aquifer, consisting of major ion chemistry, stable isotopes, radiocarbon and noble gases. In this paper, methane data have been used to further refine the paleoclimatic model, along with revisiting in detail the set of chemical data, focusing on the area where groundwaters, recharged around the LGM, are known to occur. It was found that the high methane concentrations corroborate the hypothesis of groundwater recharge taking place during permafrost melting, from methane-bubbling lakes that had developed to the south of an eolian sand ridge. A relict flow path, existing in the aquifer during some period as permafrost was thawing, has been established, starting from these temporary recharge areas, based on various chemical parameters, radiocarbon model ages and noble gas recharge temperatures. |
format |
Article in Journal/Newspaper |
author |
Walraevens, Kristine Fernández Lagunas, Albert Blaser, Petra Aeschbach, Werner Vandenbohede, Alexander Van Camp, Marc |
author_facet |
Walraevens, Kristine Fernández Lagunas, Albert Blaser, Petra Aeschbach, Werner Vandenbohede, Alexander Van Camp, Marc |
author_sort |
Walraevens, Kristine |
title |
Understanding the mechanisms of groundwater recharge and flow in periglacial environments : new insights from the Ledo-Paniselian aquifer in Belgium |
title_short |
Understanding the mechanisms of groundwater recharge and flow in periglacial environments : new insights from the Ledo-Paniselian aquifer in Belgium |
title_full |
Understanding the mechanisms of groundwater recharge and flow in periglacial environments : new insights from the Ledo-Paniselian aquifer in Belgium |
title_fullStr |
Understanding the mechanisms of groundwater recharge and flow in periglacial environments : new insights from the Ledo-Paniselian aquifer in Belgium |
title_full_unstemmed |
Understanding the mechanisms of groundwater recharge and flow in periglacial environments : new insights from the Ledo-Paniselian aquifer in Belgium |
title_sort |
understanding the mechanisms of groundwater recharge and flow in periglacial environments : new insights from the ledo-paniselian aquifer in belgium |
publishDate |
2021 |
url |
https://biblio.ugent.be/publication/8722887 http://hdl.handle.net/1854/LU-8722887 https://doi.org/10.1016/j.jconhyd.2021.103819 https://biblio.ugent.be/publication/8722887/file/8722898 |
genre |
Ice Ice Sheet permafrost |
genre_facet |
Ice Ice Sheet permafrost |
op_source |
JOURNAL OF CONTAMINANT HYDROLOGY ISSN: 0169-7722 ISSN: 1873-6009 |
op_relation |
https://biblio.ugent.be/publication/8722887 http://hdl.handle.net/1854/LU-8722887 http://dx.doi.org/10.1016/j.jconhyd.2021.103819 https://biblio.ugent.be/publication/8722887/file/8722898 |
op_rights |
No license (in copyright) info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.jconhyd.2021.103819 |
container_title |
Journal of Contaminant Hydrology |
container_volume |
241 |
container_start_page |
103819 |
_version_ |
1768388490991501312 |