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New achievements in the mineral studies by use of the Raman microspectroscopy

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Jarmołowicz-Szulc K. , Wołkowicz K.

Biuletyn Państwowego Instytutu Geologicznego

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2019

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tom nr 474

23--29

EN

By the means of the technique of the Raman microspectrometry, the complex history of the Earth can be better understood. That is why the Raman spectra determinations are the object of interest in the present paper. The examples of such experiments are presented based on the analyses performed in last years in different scientific centers (Potsdam, Banská Bystrica, Budapest). The identification of inclusion content is shown and the conclusions are drawn for fluid inclusions in some quartz samples from two different localities in Poland – in the Carpathians and in the Fore-Sudetic Block. The implications of the Raman analyses are discussed. It results from the Raman analyses performed that not fluorescing, gas-filled bubbles of huge fluid inclusions from the Jabłonki and Rabe vicinity (the tectonic mélange zone in the Carpathians) have the complex composition of CH4, CO2 and N2 in different mutual proportions dependent on the sample and locality. In another place, despite the fluorescing background, only methane has been identified by Raman spectra. Similar gas compo¬sition was determined in the inclusions in the vein quartz in the Wądroże Wielkie area (the Fore-Sudetic Block).

PL

Złożona historia Ziemi może być lepiej zrozumiana przy pomocy microspektrometrii Ramana. Toteż oznaczenia widma ramanowskiego są przedmiotem zainteresowania bieżącej pracy. Zaprezentowano przykłady oznaczeń ramanowskich, wykonanych w ostatnich latach w różnych ośrodkach naukowych (Poczdam, Bańska Bystrzyca, Budapeszt). Przedstawiono identyfikację składu inkluzji i wyciągnięte wnioski dla inkluzji fluidalnych z próbek kwarcu z dwóch różnych lokalizacji w Polsce – Karpat i bloku przedsudeckiego. Przedyskutowano implikacje analiz widma Ramana. Jak wynika z przeprowadzonych badań, niewykazujące fluorescencji, wypełnione gazem pęcherze w olbrzymich inkluzjach w rejonie Jabłonek i Rabego (strefa melanżu tektonicznego w Karpatach) mają skład złożony z CH4, CO2 i N2 w różnych wzajemnych proporcjach w zależności od próbki i lokalizacji. W innym miejscu, niezależnie od zakłócającego obraz widma fluoryzującego tła, w spektrach Ramana można wyraźnie zidentyfikować metan. Zbliżony skład gazu określono w inkluzjach w kwarcu żyłowym w rejonie Wądroża Wielkiego (blok przedusedcki).

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Skały silikoklastyczne triasu i jury niecki łódzko-miechowskiej w aspekcie rozwoju ich przestrzeni porowej

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Kuberska M. , Kozłowska A. , Wołkowicz K.

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2023

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tom Vol. 71, nr 4

212--218

EN

Triassic and Jurassic siliciclastic rocks from boreholes drilled in the Łódź and Miechów troughs to the SW of the Mid Polish Anticlinorium have been subjected to petrologic studies. The are represented by claystones, mudstones, sandstones, and less frequently by conglomerates. The studies shows that the filtration and reservoir properties of the Triassic deposits not good due to diagenetic processes (compaction, cementation, replacement, dissolution). Only some Lower Triassic sandstones, occurring among others, as intelayers, display increased values of permeability and porosity (to about 27 vol. %). The best properties are display ed by sandstones from the Brzegi IG 1 borehole, in which macropore intergranular space is present. The Lower Jurassic rocks are characterized by the best properties within the Jurassic complex. They show increased values of mostly secondary porosity, which results from the dissolution of grains and cements. The pore space is developed homogenously. It has a micropore character in the Middle and Upper Jurassic deposits.

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Rola Państwowego Instytutu Geologicznego w popularyzacji geologii w społeczeństwie

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Wołkowicz K. , Mizerski W. , Krzeczyńska M.

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2020

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tom Vol. 68, nr 5

370--377

EN

In the field of geological education conducted by the Polish Geological Institute (PGI), the Geological Museum has traditionally played the main role. Geological collections have been gathered already since the establishment of the PGI in 1919, and over time, the exhibition and educational activities, popularizing geological knowledge in society, have been continued. Currently, an increasing number of PGI employees, also from outside the Museum, are involved in the education conducted by PGI, which allows the Institute to go "outside the Museum Exhibition Hall” directly into society. This is marked, among others, by the participation in an increasing number of mass outdoor events, as well as by the increasing activity in the protection of geological heritage in Poland. In the future, special emphasis must be paid on education about the necessity and inevitability and, finally, the acceptance of exploitation of raw materials, because we, as a society and individual entities, use things created from the processing of mineral resources every day.