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80 lat Kopalni Węgla Brunatnego Konin. Część II : postęp badań geologicznych

Widera Marek

Przegląd Geologiczny

2025

Vol. 73, nr 1

18--26

Geological research is inextricably linked to the exploration of lignite deposits and their exploitation by the Konin Lignite Mine (KWB Konin/. Drilling data and, above all, observations made in opencast mines have provided a lot of valuable information about the geology of this part of central Poland. Despite the mining of mid-Miocene lignite, ‘Tertiary’ sediments were studied in 1945-1966 and mainly Quaternary sediments in 1967-1995. On the contrary, the last 30 years (1996-2025) have been dominated by research on Neogene sediments in the KWB Konin opencasts, although older and younger sediments have also been examined. In this way, the stratigraphy of the Quaternary was first learned, and then many discoveries of sediments, forms and structures were made within the Neogene succession. As a result, some sites in the vicinity of the town of Konin are considered stratotypes for the Quaternary and Neogene stratigraphy of the Polish Lowlands. Moreover, some of the new geological discoveries in the Neogene beds are unique in Poland, Europe and even in the world. None of these achievements would have been possible without the 80 years of mining activity of the KWB Konin.

80 lat Kopalni Węgla Brunatnego Konin. Część I : historia rozpoznania złóż i ich eksploatacja

Frydrychowicz Dagmara, Galantkiewicz Ewa, Kasztelewicz Zbigniew, Widera Marek

Przegląd Geologiczny

2024

Vol. 72, nr 10

532--545

Abstract. February 2025 marks the 80th anniversary of the operation of the Konin Lignite Mine (KWB Konin/ in central Poland. During the period, lignite was extracted in 12 opencasts, of which currently (late 2024) only the Tomisławice opencast remains. Throughout the history of the KWB Konin, a total of approx. 650 mill. Mg of lignite was exploited. Lignite mining was inextricably linked to the removal of over 3.5 billion m3 of overburden and the pumping out of more than 6 billilon m3 of water. These activities led to enormous changes in the hydrogeological and geological environment, as well as transformations of the morphology of the area around the town of Konin. In the latter case, this is manifested in the occurrence of numerous external dumps and anthropogenic lakes, which are up to several dozen metres high and deep, respectively. All post-mining areas are subject to multi-directional reclamation, such as: water, forest, agricultural, recreational, etc. Finally, it is worth mentioning the open-air museums located in the vicinity of the former Konin Lignite Mine opencasts, where mining machines and equipment will be available for future generations.