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    Wyświetlanie 1-4 z 4
    Tytuł:
    Wyniki badań mineralogicznych i petrologicznych nowych okazów meteorytu Pułtusk w 150 rocznicę spadku
    Results of mineralogical and petrological research of new samples on the Pułtusk meteorite at the 150th anniversary of the fall
    Autorzy:
    Przylibski, T. A.
    Łuszczek, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/2075816.pdf
    Data publikacji:
    2018
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Pułtusk
    meteoryt
    chondryt
    zwyczajny chondryt
    chondryt H5
    meteorite
    chondrite
    ordinary chondrite
    H5 chondrite
    Opis:
    One of the largest observed stone meteorite shower in the history of mankind on Earth took place on Thursday evening on January 30, 1868, about seven o’clock near Pułtusk in Poland. Despite the 150th anniversary of the fall of chondrite officially classified as Pułtusk H5 with a shock stage S3 there is still little published data on the chemical composition of minerals of this chondrite as well as its petrological characteristics in the literature. The authors carried out mineralogical and petrological research that will help a little to fill this gap in knowledge about the Pułtusk chondrite. Meteorite specimens found by Piotr Kuś in 2015 and investigated by the authors are undoubtedly part of the Pułtusk fall of January 30, 1868. They can be classified as ordinary chondrite H5, S2,W2. The authors stated that the studied rock is characterized by a varied shock level -from S1 to S2/3, as well as it contains chondrules of the chromite-plagioclase unequilibrated rock. In the composition of the examined fragment of Pułtusk chondrite, the authors identified silicates: olivine, diopside, bronzite and clinohyperstene, and oligoclase, oxides: chromite (and spinel), sulfides: troilite, FeNi alloy mineral phases: kamacite and taenite, as well as phosphates: merrilite and apatite. The chemical composition of olivine crystals as well as low- and high-Ca pyroxenes crystals and plagioclase crystals (about the composition of oligoclase) confirms that the examined specimen comes from the Pułtusk fall and it is a rock that should be classified as a petrographic type H5.
    Źródło:
    Przegląd Geologiczny; 2018, 66, 6; 368--378
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Potencjalnie lecznicze wody radonowe Masywu Ślęży
    Potentially therapeutic radon waters of Ślęża Massif
    Autorzy:
    Przylibski, T. A.
    Fijałkowska, L.
    Bielecka, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2074598.pdf
    Data publikacji:
    2008
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    radon
    222Rn
    wody podziemne
    wody radonowe
    groundwater
    radon water
    medicinal water
    potential therapeutic water
    Opis:
    The authors have conducted research on radon occurrence in the groundwater system of Ślęża Massif in the Fore-Sudetic block. The research included documenting occurrence of radon waters in the granitoids of Strzegom-Sobótka Massif, buildingNWandWslopes of Ślęża. Among several springs flowing out from the granitoids and their waste, the Klasztorne Spring is characterized by constant radon (222Rn) concentration (306 ±39 Bq/dm3), but also constant though small discharge during the year, which enables estimating the admissible volume of this spring at 0.3 m3/h. The results obtained during the research show that this water can be treated as potentially medicinal. It generates the opportunity for the nearby town of Sobótka to develop as a health resort. Confirming the presence of radon groundwater in the granitoid part of Ślęża Massif implies a great probability that such w occur in the whole area of the Strzegom-Sobótka intrusion. It opens possibilities of recognizing new resources of potential therapeutic water and entails the necessity to take suitable actions for radiological protection of people living in this area.
    Źródło:
    Przegląd Geologiczny; 2008, 56, 8/2; 763-771
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zawartość minerałów FeNi w chondrytach H jako wskaźnik zasobności pozaziemskich skał rudonośnych w wybrane metale
    Concentration of FeNi minerals in H chondrites as an indicator of extraterrestrial ore-bearing rocks wealth in selected metals
    Autorzy:
    Blutstein, K.
    Przylibski, T. A.
    Łuszczek, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/2075845.pdf
    Data publikacji:
    2018
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    meteoryty
    zwykłe chondryty
    stop FeNi
    pozaziemskie zasoby metali
    chondryt H
    asteroida 6 Hebe
    meteorite
    ordinary chondrite
    H chondrite
    FeNi alloy
    extraterrestrial metal resources
    H chondriteparent body
    6 Hebe asteroid
    Opis:
    Extraterrestrial resources should be the basic sources of materials for the development of humankind civilization in space as well as they could replace the Earth’s resources when they would be exhausted. They can be obtained from the planets, their moons or asteroids, primarily NEOs but also from the asteroid belt. This article presents the results of petrographic research on the content of FeNi minerals whose may be a source of iron and nickel, in H type ordinary chondrites: Pułtusk, Cher- gach, Tamdakht, Gao-Guenie andNWA 4555, which parent body is probably the 6Hebe. The results confirm that the volumetric abundance of FeNi minerals in H type chondrites is ca. 8%. Moreover, this study shows the reliability of the reflected-light optical microscopy for determination of ore mineral concentrations in extraterrestrial rocks with weathering grade W0. Taking into account the homogenous spatial distribution of metallic grains (proved by author’s microscopic observations) and knowing the amount of FeNi minerals in rocks with Hchondrite composition, the amount of potential FeNi resources on Hparent bodies can be calculated. It was estimated that the iron resources from Hebe’s FeNi minerals would cover 1.3 million years of terrestrial mining production whereas nickel resources would last for approx. 100 milion years. A small NEO asteroid like (143624) 2003 HM16 (2 km in diameter) has resources comparable with 15 months of mining iron production and over 100 years of nickel production at present rate.
    Źródło:
    Przegląd Geologiczny; 2018, 66, 12; 776--784
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Skład gazów rozpuszczonych w wodzie termalnej eksploatowanej odwiertem KT-1 w Karpnikach na obszarze granitu karkonoskiego w Sudetach
    Composition of gas dissolved in thermal water extracted from borehole BKT-1 at Karpniki (Karkonosze granite area, Sudetes)
    Autorzy:
    Przylibski, T. A.
    Żak, S.
    Kowalska, A.
    Domin, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/2075848.pdf
    Data publikacji:
    2018
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    skład gazu
    gaz szlachetny
    azot
    hel
    argon
    radon
    gas composition
    noble gas
    nitrogen
    helium
    Opis:
    The detailed research of a gas mixture released from the thermal water, which is extracted from borehole KT-1 at Karpniki, showed the predominance of nitrogen (98.08% by volume) with subordinate Ar (1.52%) and He (0.32%) and trace amounts of CO2 (0.07%) and CH4 (0.01%). The 222Rn radionuclide is also dissolved in this water, showing an activity concentration of 245 Bq/dm3 at the outflow and 256 Bq/dm3 in the aquifer. A small value of the gas exponent (0.014), and also a value of the δ coefficient close to 1 (0.93) were calculated based on the dissolved Ar and N2 content in the water examined, as well as on concentrations of argon and nitrogen in water, assuming that atmospheric air is present above the water surface with a contemporary composition and under normal pressure. The data obtained indicate that these gases and additionally CO2 and CH4 are of atmospheric origin. These gases were either dissolved in rainwater, which infiltrated deep into the Karkonosze granite massif, orformed within the organic layer covering this exposed intrusion. This is evidenced by concentrations of these gases that can be comparable to their atmospheric equivalents. Helium is a radiogenic gas formed as a result of nuclear transformation of isotopes assigned to natural radioactive series. The radiogenic and also radioactive gas is represented by the 222Rn radioisotope which is released from reservoir rocks, in an amount of 5% of the atom poolforming in the reservoir rock, into thermal water that subsequently reaches borehole KT-1 from a distance of 34 m at most. The thermal paleoinfiltration water has been heated up as a result of the conduction, and the source of heat is the temperature of the rocks resulting from an average geothermal gradient of 2.96°C per 100 m. The results of the authors’research indicate that there are no traces of inflow of hotfluids (especially water) from the deeper layers of the crust or from the mantle. If the examined thermal water is considered as paleoinfiltration water, its static resources may be limited, non-renewable.
    Źródło:
    Przegląd Geologiczny; 2018, 66, 8; 483--494
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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