Temat: Western part - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Zmiany średniej refleksyjności witrynitu uwęglonej materii organicznej w warstwach istebniańskich jako przykład tektonicznej ewolucji płaszczowiny śląskiej (zachodnie Karpaty fliszowe)
Changes of random vitrinite reflectance of coalified organic matter in the Istebna Beds as evidence of tectonic evolution of the Silesian nappe (western flysch Carpathians)
Autorzy:: Syrek, M.
Powiązania:: https://bibliotekanauki.pl/articles/183425.pdf
Data publikacji:: 2009
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:: Zewnętrzne Karpaty Zachodnie
płaszczowina śląska
warstwy istebniańskie
uwęglona materia organiczna
średnia refleksyjność witrynitu
western part of Outer Carpathians
Silesian unit
Istebna beds
coalified organic matter
random vitrinite reflectance
Opis:: Organic matter in the Istebna beds occur as dark laminas in sandy mudstones. Coalification degree of organic matter in the Istebna beds is related with orogenic period of the flysch Carpathians. There is no correlation with age of rocks and subsidence processing started during Paleogene. Higher values of vitrinite reflectance in southern part of Silesian Unit have been noticed.
Źródło:: Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie; 2009, 35, 2/1; 61-68
0138-0974
Pojawia się w:: Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Hydrothermal ore mineralization from the Polish part of the Tatra Mts., Central Western Carpathians
Autorzy:: Sitarz, Magdalena
Gołębiowska, Bożena
Nejbert, Krzysztof
Dimitrova, Dimitrina
Milovský, Ratislav
Powiązania:: https://bibliotekanauki.pl/articles/2055847.pdf
Data publikacji:: 2021
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:: tetrahedrite
hydrotherma ore mineralization
fluid inclusions
LA-ICP-MS study
Tatric Superunit
Polish part of the Western Tatra Mts.
Polska
Opis:: Several areas with hydrothermal ore mineralization are present in the Polish part of the Western Tatra Mts. Massive and disseminated sulfides, mainly minerals from the tetrahedrite group and chalcopyrite, fill quartz veins accompanied by siderite, dolomite and baryte – many of these were mined between the 16th and 18th century. This paper presents information on the mineralogy of the common sulfides and the preliminary studies of both the isotopic composition of sulfur in tetrahedrite as well as the origin of hydrothermal fluids. The most common primary sulfide minerals in the ores are tetrahedrite-(Zn) and tetrahedrite-(Fe) corresponding to Zn ranges from 1.83 to 5.87 wt.% (0.47–1.44 apfu), and Fe from 1.63 to 5.05 wt.% (0.48–1.52 apfu). The substitution of As for Sb shows maximum As content of 7.25 wt.% (1.588 apfu) which corresponds to the Sb/(Sb+As) = 0.60. Both varieties show substitutions of Bi and Hg, up 0.6 wt.% (0.049 apfu) and 0.96 wt.% (0.081 apfu), respectively, and content of trace elements: Co (max. 976 ppm), Cd (max. 735 ppm), In (max. 14 ppm). Chalcopyrite, pyrite, and galena show compositions close to the ideal formula. Differences in the content of trace elements in the studied tetrahedrite and chalcopyrite were explained by element partitioning between these minerals. The distributions of In, Ga and Sn in the studied minerals indicate that the mineralization was formed at low temperature and pressure. The homogenization temperature of the primary inclusions in quartz in the range of 120–174°C indicate the origin of mineralization in low temperature stage from low salinity fluids (up to 17.92 wt.% NaCl eq.). Stable δ34S isotopes in minerals of the tetrahedrite group suggest that the igneous fluids might be one of the sources from which ores were crystallized.
Źródło:: Geology, Geophysics and Environment; 2021, 47, 3; 159--179
2299-8004
2353-0790
Pojawia się w:: Geology, Geophysics and Environment
Dostawca treści:: Biblioteka Nauki

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