Wyniki wyszukiwania - BazTech

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Epigenetyczna mineralizacja hematytowa „typu Zagnańska” w Górach Świętokrzyskich – występowanie i geneza

Lenik Piotr, Salwa Sylwester

Przegląd Geologiczny

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2024

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Vol. 72, nr 7

325--331

EN

The article presents the mineralogical characteristics of epigenetic iron mineralization in the Paleozoic core of the Holy Cross Mountains. The occurrence of epigenetic Fe mineralization, known in the literature as “Zagnańsk-type ”, has so far been associated with the Łysogóry region of the Holy Cross Mountains, and the classic location is the Zachełmie quarry near Zagnańsk. Moreover, other occurrences of this mineralization in the Łysogóry region were also recorded in Wzdół-Kamieniec and Rudki. In recent years, manifestations of this type of mineralization have also been found in the Kielce region of the Holy Cross Mountains, including: the Laskowa quarry near Kostomloty and the Józefka quarry near Górno. The hematite ores and the accompanying mineralization from outcrops known from the literature and from new locations were investigated. Detailed microscopic examinations allowed determining the order of crystallization of individual minerals and distinguishing two stages of Fe mineralization, differing in both mineralogical composition and precipitation conditions. The relationship of this mineralization with diagenetic processes taking place in the Devonian-Carboniferous basin and with the tectonic processes of the Variscan orogeny was also demonstrated. Such mineralization shows close connections with tectonic zones, which emphasizes its epigenetic nature at all locations studied. A general model of the formation of Zagnańsk-type Femineralization was also created, which is applicable to the entire Paleozoic core of the Holy Cross Mountains. In the metallogenesis of the Holy Cross Mountains, this mineralization occurs after (or almost simultaneously) the oldest dolomites and manifestations of silicification of carbonate rocks, and precedes the fundamental stage of development of polymetallic sulphide mineralization with carbonates, and of barite mineralization, which is commonly recorded in this region.

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Mineralizacja markasytowo-hematytowo-ankerytowa w południowo-wschodniej części Gór Świętokrzyskich

Nieć M., Pawlikowski M.

Przegląd Geologiczny

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2015

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Vol. 63, nr 4

219–-227

EN

The occurrences of previously unknown, iron sulphide (marcasite-pyrite)-hematite and ankerite mineralization have been recorded in the eastern part of the Holy Cross Mts. They are located in the fault zones within Middle Devonian dolomites. Irregular recrystalization of dolomite and its replacement by illite is an accompanying peculiar feature. Similar disseminated pyrite-hematite mineralization is known in the hanging wall of the Rudki iron sulphide ore deposit. The occurrence and mineral composition of this mineralization allow to suppose it was formed by low temperature hydrothermal processes, close to the end of the Variscan orogeny.

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Produkty oddziaływań diagenetycznych i hydrotermalnych w skałach osłony neogeńskich wulkanitów pienińskiego pasa skałkowego - wstępne badania mineralogiczno-petrograficzne

Pawlikowski M., Natkaniec-Nowak L., Dumańska-Słowik M., Kępińska B., Sikorska M.

Technika Poszukiwań Geologicznych

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2011

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R. 50, nr 1-2

377-385, 4 nlb.

PL

Przedstawiono wyniki wstępnych prac terenowych i badań mineralogiczno-petrograficznych skał z wybranych rejonów pienińskiego pasa skałkowego po stronie polskiej i słowackiej. Ich celem było rozpoznanie objawów procesów hydrotermalnych i wytypowanie obszarów potencjalnie najkorzystniejszych z punktu widzenia możliwości dalszych badań pienińskiego pasa skałkowego pod kątem rozpoznania termicznego i geotermalnego. Badania laboratoryjne dotyczyły przede wszystkim charakteru mineralnego oraz częstości występowania różnego rodzaju żyłek (głównie węglanowych) tnących skały z najbliższego otoczenia neogeńskich wulkanitów PPS. Stwierdzono, że skały z rejonu potoku Piekiełko koło Krościenka charakteryzuje największa ilość żyłek, zarówno pod względem liczebności jak i miąższości. Są to w przewadze skały okruchowe (piaskowce) odznaczające się dość znaczną szczelinowatością. Wskazano na potrzebę przeprowadzenia dalszych badań geologicznych i wiertniczych.

EN

The results of preliminary field works as well as mineralogical and petrographical investigations of rock samples from selected localities in the Pieniny Klippen Belt (Polish and Slovakian sides) are presented. They aimed at recognition of hydrothermal processes and indicating the most prospective areas for further thermal and geothermal exploration. The laboratory research concentrated mostly on mineralogical composition and frequencies of occurrence of various types of veins (mostly carbonate) which intersect the rocks from the nearest proximity of the Neogene volcanites of the Pieniny Klippen Belt. It was found that the highest number of veins (regarding their abundancies and thicknesses) is ascribed to the rocks outcropping in the area of Piekiełko brook near Krościenko. There are mainly detritic rocks (sandstones) with relatively high amount of fractures. The need for further geological research and drilling works was pointed out.