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Stan chemiczny wód podziemnych aglomeracji łódzkiej

Małecki J. J., Porowska D., Styrkowiec E., Ziułkiewicz M.

Przegląd Geologiczny

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2017

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Vol. 65, nr 11/2

1329--1333

EN

The article identifies the hydrogeochemical environments controlling the chemical composition of groundwater in the Lódź agglomeration. The study was conducted with a different position of the groundwater table within: the Quaternary, Upper- and Lower Cretaceous aquifers. These aquifers are continuously exploited from a long time till present. The papers focuses on geogenic factors resulting from geological construction, lithology, circulation in the Lódź basin and anthropogenic factors associated with the change of the circulation system and the potential migration of pollution from the surface. The chemical composition of water from the Quaternary, Upper- and Lower Cretaceous aquifers was stable, without any anthropogenic changes. The hydrochemical inversion of water within the Cretaceous aquifers is the result of the different lithology of these aquifers and the variation in the way and magnitude of groundwater recharge.

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Zasilanie i drenaż wód podziemnych GZWP nr 401 (Zbiornik Niecka Łódzka) w świetle badań modelowych

Rodzoch A., Pazio-Urbanowicz K.

Przegląd Geologiczny

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2015

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Vol. 63, nr 10/2

1037--1041

EN

Existing publications and hydrogeology studies about Łódź Basin say there is a thesis that Lower Cretaceous aquifer (including MGB No. 401 (Łódź Basin)) is recharged only at narrow part of under Cenozoic outcrop without Upper Cretaceous water recharge . The study questions above thesis and presents the new one , based on own groundwater modelling research. According the new thesis Lower Cretaceous aquifer is also recharged from Upper Cretaceous aquifer by vertical filtering during period intensive groundwater take off and from adjacent aquifers lateral recharge.

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Inwersja hydrochemiczna i wiekowa wód podziemnych na obszarze GZWP nr 401 (Zbiornik Niecka Łódzka)

Rodzoch A., Karwacka K.

Przegląd Geologiczny

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2015

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Vol. 63, nr 10/2

1033--1036

EN

The area of Łódź basin is presented in the hydrogeology literature as an area where hydrogeochemical vertical inversion and age vertical inversion between Upper Cretaceous aquifer and Lower Cretaceous aquifer occur. This article describes new facts and research results which will allow to verify the well-known fact about inversion presented above. Furthermore, the presented research results help to form a thesis about groundwater recharge and groundwater discharge of Early Cretaceous aquifer which creates MGB No. 401 (Łódź Basin).

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Dolnokredowy oraz dolnojurajski zbiornik wód geotermalnych na Niżu Polskim

Górecki W., Hajto M., Strzetelski W., Szczepański A.

Przegląd Geologiczny

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2010

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Vol. 58, nr 7

589-593

EN

Regional analysis of the Mesozoic and Paleozoic geothermal aquifers in the Polish Lowlands indicates that hot waters accumulated in Lower Cretaceous and Lower Jurassic deposits should be given priority in practical utilization. Crucial for this purpose are: high level of the geological recognition of the aquifers, occurrence of thick reservoir rocks, high water discharge, relatively high temperatures, particularly in the Lower Jurassic aquifer, and relatively low costs of drilling the production and injection wells. The Lower Jurassic and Lower Cretaceous water-bearing layers are represented by sandstone complexes with very good reservoir properties. This is favourable for high water discharge, which has beneficial influence on economical justification of construction of geothermal plants. The above findings have been confirmed by the so-far geothermal investments, among others the geothermal plants in Pyrzyce and Stargard Szczeciński, which utilize geothermal waters from the Lower Jurassic aquifer. Other plants, located in Uniejów and Mszczonów, central Poland, utilize waters from the Lower Cretaceous aquifer.