The groundwater dynamics in the southern part of the Baltic artesian basin during the Late Pleistocene
The reconstruction of hydrogeological conditions during the Late Pleistocene and Holocene has been performed for the southern part of the Baltic Artesian Basin (BAB) situated on the slope of the Belarusian-Masurian crystalline basement. The reconstruction was accomplished modelling the freezing-and-...
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ftlithuaniansrc:oai:elaba:5877387 2023-05-15T17:57:19+02:00 The groundwater dynamics in the southern part of the Baltic artesian basin during the Late Pleistocene Zuzevičius, Algirdas 2010 http://lmavb.lvb.lt/LMAVB:ELABAPDB5877387&prefLang=en_US eng eng http://lmavb.lvb.lt/LMAVB:ELABAPDB5877387&prefLang=en_US Baltica, 2010, Vol. 23, no. 1, p. 1-12 ISSN 0067-3064 Late Pleistocene Permafrost modelling Glacier Groundwater dynamic Baltic artesian basin info:eu-repo/semantics/article 2010 ftlithuaniansrc 2021-12-02T00:38:39Z The reconstruction of hydrogeological conditions during the Late Pleistocene and Holocene has been performed for the southern part of the Baltic Artesian Basin (BAB) situated on the slope of the Belarusian-Masurian crystalline basement. The reconstruction was accomplished modelling the freezing-and-thawing of the subsurface and migration of unfrozen water under the permafrost, which covered the whole 250-270 m thick fresh water zone before the Nemunas (Late Weichselian) glacier advance (22 000-23 000 BP). Due to anomalous high gradients (0.003-0.004) caused by glacier loading (in the north) and draining periglacial lake (in the south), the unfrozen mineralised water could fill a 10-35 km wide strip in the lower beds of the sedimentary cover at the BAB’s southern margin. This can explain the current small thickness of the fresh water zone, as well as the older age of water in deeper beds and water mineralisation in the southern part of the BAB as compared to the northern part of the basin, which is in a similar geological setting. Article in Journal/Newspaper permafrost LSRC VL (Lithuanian Social Research Centre Virtual Library) |
institution |
Open Polar |
collection |
LSRC VL (Lithuanian Social Research Centre Virtual Library) |
op_collection_id |
ftlithuaniansrc |
language |
English |
topic |
Late Pleistocene Permafrost modelling Glacier Groundwater dynamic Baltic artesian basin |
spellingShingle |
Late Pleistocene Permafrost modelling Glacier Groundwater dynamic Baltic artesian basin Zuzevičius, Algirdas The groundwater dynamics in the southern part of the Baltic artesian basin during the Late Pleistocene |
topic_facet |
Late Pleistocene Permafrost modelling Glacier Groundwater dynamic Baltic artesian basin |
description |
The reconstruction of hydrogeological conditions during the Late Pleistocene and Holocene has been performed for the southern part of the Baltic Artesian Basin (BAB) situated on the slope of the Belarusian-Masurian crystalline basement. The reconstruction was accomplished modelling the freezing-and-thawing of the subsurface and migration of unfrozen water under the permafrost, which covered the whole 250-270 m thick fresh water zone before the Nemunas (Late Weichselian) glacier advance (22 000-23 000 BP). Due to anomalous high gradients (0.003-0.004) caused by glacier loading (in the north) and draining periglacial lake (in the south), the unfrozen mineralised water could fill a 10-35 km wide strip in the lower beds of the sedimentary cover at the BAB’s southern margin. This can explain the current small thickness of the fresh water zone, as well as the older age of water in deeper beds and water mineralisation in the southern part of the BAB as compared to the northern part of the basin, which is in a similar geological setting. |
format |
Article in Journal/Newspaper |
author |
Zuzevičius, Algirdas |
author_facet |
Zuzevičius, Algirdas |
author_sort |
Zuzevičius, Algirdas |
title |
The groundwater dynamics in the southern part of the Baltic artesian basin during the Late Pleistocene |
title_short |
The groundwater dynamics in the southern part of the Baltic artesian basin during the Late Pleistocene |
title_full |
The groundwater dynamics in the southern part of the Baltic artesian basin during the Late Pleistocene |
title_fullStr |
The groundwater dynamics in the southern part of the Baltic artesian basin during the Late Pleistocene |
title_full_unstemmed |
The groundwater dynamics in the southern part of the Baltic artesian basin during the Late Pleistocene |
title_sort |
groundwater dynamics in the southern part of the baltic artesian basin during the late pleistocene |
publishDate |
2010 |
url |
http://lmavb.lvb.lt/LMAVB:ELABAPDB5877387&prefLang=en_US |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
Baltica, 2010, Vol. 23, no. 1, p. 1-12 ISSN 0067-3064 |
op_relation |
http://lmavb.lvb.lt/LMAVB:ELABAPDB5877387&prefLang=en_US |
_version_ |
1766165711542026240 |