HYDROGEOLOGICAL ASPECTS OF QUATERNARY SEDIMENTS IN POLAND
Journal Title: Biuletyn Państwowego Instytutu Geologicznego - Year 2010, Vol 441, Issue 441
Abstract
The major groundwater resources in Poland come from Quaternary aquifers. Rich in groundwater are structures of contemporary river valleys and of buried valleys, that comprise sands and gravels of glaciofluvial origin. Groundwater aquifers cover water demands of ca. 2.1 km3 annually. 65% of drinking water in Poland comes from groundwater intakes. Recharge zones of these aquifers are usually located in highlands – moraine plateau, and discharge zones are located in deep and wide river valleys.The average thickness of fresh water aquifers is about 200 m in Poland. The fresh water was stated even over 1,000 m depth in some places, but in the Mesozoic strata. The thickness of fresh water aquifer reduces, however, to only few metres in areas of salt water ascension or intrusion along the Baltic coast area. Recognition of groundwater circulation systems is the basis for delineation of a groundwater body (GWB). In Poland, the most productive parts of groundwater bodies that allow to abstract water at a rate grater that 10,000 m3/day, are defined as Major Groundwater Basins (MGWBs).The mean residence time of groundwater in Quaternary aquifers in Poland is estimated at some 50 yrs, whereas the residence time of water in sluggish circulation systems in deeper strata exceeds 104 yrs.Quaternary aquifers situated close to the surface area are vulnerable to municipal and agricultural pollution. The geogenic pollution such as sea water intrusion or ascension of brines are observed mainly at lowlands along the Baltic coastline, in vicinity of water intakes, or on an axial zone of anticlinoria. Trends in lowering a groundwater table are noted in the central part of the Polish lowlands and are associated with climatic variability or lignite opencast dewatering.
Authors and Affiliations
Zbigniew NOWICKI, Andrzej SADURSKI
Keywords
Related Articles
- EP ID EP64692
- DOI -
- Views 69
- Downloads 0
Koncepcja odsalania wód termalnych w kontekście poprawy bilansu wodnego
W Polsce i na świecie przyjęte są dwa systemy eksploatacji wód termalnych: zamknięty system otworów produkcyjnych i chłonnych, tzw. dublet/triplet geotermalny (m.in. Niemcy, Francja, Polska – Podhale, Pyrzyce, Stargard S...
WSTĘPNA ANALIZA WYNIKÓW POLOWYCH BADAŃ ZRÓŻNICOWANIA OBSZAROWEGO I SEZONOWYCH ZMIAN ZAWARTOŚCI AZOTANÓW W PIERWSZYM POZIOMIE WODONOŚNYM
Od 2006 r. w Państwowym Instytucie Geologicznym – Państwowym Instytucie Badawczym prowadzone są prace dotyczące opracowania warstw informacyjnych bazy danych GIS MhP 1:50 000 „pierwszy poziom wodonośny – wrażliwość na za...
CHARACTERISTIC OF RELICT MINERALIZATION IN THE NORTHERN PART OF RADWANICE COPPER FIELD (SW PART OF LUBIN-SIEROSZOWICE DEPOSIT)
The paper presents the characteristics of relict mineralization in the lowermost Zechstein sediments based on core material from wells located in the western part of the Radwanice copper field. The occurrence and distrib...
INFILTRACJA EFEKTYWNA W OBSZARACH ODKRYWKOWEJ EKSPLOATACJI PIASKÓW
Infiltrację efektywną określono dla 22 cząstkowych zlewni podziemnych w zasięgu drenującego wpływu trzech odkrywkowych kopalń piasku. Powierzchnia zlewni podziemnych wahała się od 0,2 do 23,4 km2. Infiltrację obliczono...
GROUNDWATER RENEVAL OF GWDA CATCHMENT
In this article major results of hydrogeological and hydrological researches altogether with reneval aquifer system assessment in the Gwda catchment area of 4,947.3 km[sup]2[/sup] are presented. It was studied as docume...