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Badania i poszukiwania złóż cynku i ołowiu, Mo-W-Cu, uranu, ziem rzadkich, złota oraz kopalin morskich prowadzone przez Państwowy Instytut Geologiczny

Wołkowicz Stanisław, Dymowski Witold, Markowiak Marek, Mikulski Stanisław, Szamałek Krzysztof

Przegląd Geologiczny

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2019

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Vol. 67, nr 7

599--609

EN

In the shadow of discoveries of large deposits of mineral resources in Poland after World War II, intensive exploration works were carried out, but the results of this research did not bring such spectacular effects. Exploration of Zn-Pb deposits conducted in the vicinity of historic deposits of Tarnowskie Góry and Bytom led to documentation of the Zawiercie, Goluchowice and Marciszów deposits. With some successes, exploration works of metal ore deposits in Paleozoic igneous and metamorphic rocks of the NE margin of the Upper Silesian Coal Basin were carried out. In this area, the Myszków Mo-W-Cu mineral deposit was confirmed, representing the porphyry copper genetic type. Moreover, in the area of Mrzyglód, the promising mineralization zone was found, requiring further geological research. The exploration of uranium and rare earth element ores did not lead to documentation of the deposits, nevertheless they made it possible to recognize all geological structures in Poland in terms of the possibility of occurrence of ore deposit occurrence of these metals. The prospecting works for these goals was carried out with a relatively small scale and were limited of the Sudetes, where exploitation took place on a fairly large scale in the past (Zloty Stok, Radzimowice, Klecza-Radomice, Wądroże Wielkie). The gold concentration occurring in the Zechstein Kupferschiefer formation and the porphyry copper mineralisation in NE margin of the Upper Silesian Coal Basin were also studied. The PGI participated in the exploration of mineral resources in marine areas, where besides the hydrocarbon exploration in the Polish economic zone, research on the Baltic polymetallic nodules was carried out, and within the INTEROCEANMETAL consortium the raw material potential of the Clarion-Clipperton Zone in the Pacific was studied.

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Zmiany hydrogeologiczne w obrębie synkliny chrzanowskiej po dziewięciu latach od zatopienia kopalni ZG „Trzebionka”

Kasprzak Agata, Motyka Jacek, Szuwarzyński Marek

Biuletyn Państwowego Instytutu Geologicznego

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2019

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nr 476, Hydrogeologia z. 17

47--53

PL

W artykule przedstawiono wyniki blisko dziesięcioletnich badań hydrodynamicznych i hydrochemicznych skutków likwidacji kopalni rud cynku i ołowiu „Trzebionka” w rejonie chrzanowskim. Odtwarzanie się pierwotnych ciśnień hydrodynamicznych w górotworze oraz procesy chemiczne temu towarzyszące doprowadziły m.in. do pogorszenia się jakości wody w skałach triasowego piętra wodonośnego oraz pojawienia się wody na powierzchni terenu. To wszystko stawia nowe wyzwania przed lokalnymi władzami, przedsiębiorcami oraz mieszkańcami okolicy.

EN

The paper presents results of almost 10-year observation of hydrodynamic and hydrochemistry changes in the Triassic aquifer, after the closure of the Zn-Pb “Trzebionka” mine (Chrzanów area). Recovery of the natural hydrodynamic pressure in the rocks and associated chemical processes adversely affected the groundwater quality of the Triassic aquifer and resulted in the appearance of water on the surface. It leads to new challenges for local authorities, entrepreneurs and residents of the area.

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Remarks on the origin of cerussite in the Upper Silesian Zn-Pb deposits, Poland

Szczerba M., Sawłowicz Z.

Mineralogia

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2009

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Vol. 40, iss. 1/4

53--64

EN

Cerussite, the most important oxidized lead mineral in the Upper Silesian Zn-Pb deposits, occurs in two readily distinct types: fine-grained cerussite replacing galena in-situ and macrocrystalline cerussite filling open fractures and cavities. Microscopic observations and thermodynamic considerations lead to the conclusion that galena can be oxidized to lead carbonate directly, not necessarily through an intermediate sulphate phase. Locally present iron sulphides undergoing oxidation acidify solutions and provide ferric ions which are important oxidizing agents. In such microenvironments, anglesite can preferentially form. Cerussite and galena commonly coexist together with non-oxidized zinc sulphides. It is difficult to explain such assemblages if galvanic couplings made of these two sulphides are not considered. These couplings are only formed when these two sulphides are in direct contact. In such an assemblage, galena undergoes oxidation, mostly to cerussite, and sphalerite is passivated. When there is no direct contact between sulphides, the galvanic couplings do not exist. Galena surfaces become covered by oxidation products which inhibit further oxidation. As such a cover does not form on sphalerite, it can be easily oxidized.