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    Wyświetlanie 1-7 z 7
    Tytuł:
    Złoża kimberlitowe i aluwialne w rejonie Kimberley : 155 lat od odkrycia diamentów w Afryce Południowej
    Kimberlite and alluvial deposits in the Kimberley region : 155 years after the diamond discovery in South Africa
    Autorzy:
    Jarmolowicz-Szulc, Katarzyna
    Kozłowska, Aleksandra
    Powiązania:
    https://bibliotekanauki.pl/articles/2076170.pdf
    Data publikacji:
    2021
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    diamenty
    kimberlity
    depozyty pierwotne
    depozyty wtórne
    Kimberley
    diamonds
    kimberlites
    primary deposits
    secondary deposits
    Opis:
    For 155 years, the world's most famous diamond deposits have been known from South Africa. The first discoveries that had a casual character took place in the second half of the 19th century in the Kimberley region where diamonds are associated either with kimberlite pipes or occur as secondary deposits of the river alluvia. Minerals that formed in the upper mantle under high p-T conditions were transported to the surface by magmas and deposited around craters due to lava explosions. Surfice waters leached and transported diamonds either to the crater or to the neighbourhood. These processes have led to diamond production both from the deep and open-pit mines which is presented in the paper.
    Źródło:
    Przegląd Geologiczny; 2021, 69, 3; 174--178
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Badania geologii złóż węgla brunatnego w Państwowym Instytucie Geologicznym
    PGI research on the geology of lignite deposits
    Autorzy:
    Kasiński, Jacek R.
    Powiązania:
    https://bibliotekanauki.pl/articles/2074284.pdf
    Data publikacji:
    2019
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    węgiel brunatny
    depozyty
    miocen
    osadzanie
    lignite
    deposits
    Miocene
    sedimentation
    Opis:
    The PGI research of lignite was primarily focused in the area of eastern Poland. An extensive research of the lignite deposit geology mmediately after the end of World War II led to numerous discoveries of large lignite deposits, including some of the biggest in Europe (Legnica, Bełchatów, Poznań Tectonic Trough). The data collected during exploration and prospection of lignite deposits made possible to elaborate stratigraphy (litho- and palynostratigraphy) of Paleogene/Neogene lignite-bearing association on the Polish Lowlands and prepare its detail correlation with the stratigraphic schemes of East Germany. Sedimentological studies of lignite-bearing association led to the definition of basic types of lignite-bearing facies, related to sedimentary conditions in different zones of alluvial sedimentary basins. They also allowed the establishment of relationships between lignite-bearing sedimentation and tectonic evolution of the lignite basins in tectonic depressions and cups of salt domes. Recently, the impact of climate change on the development of brown coal sediments has been subject to study and the critical thermal conditions for the most intense anthracogenesis in the Polish Lowlands, which took place in Miocene, were defined.
    Źródło:
    Przegląd Geologiczny; 2019, 67, 7; 584--586
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Metodyka ustalania listy złóż strategicznych oraz kryteriów ich ochrony planistycznej
    Methodology for determining the list of strategic deposits and their protection criteria in spatial planning
    Autorzy:
    Mazurek, Sławomir
    Szamałek, Krzysztof
    Powiązania:
    https://bibliotekanauki.pl/articles/2087067.pdf
    Data publikacji:
    2022
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    depozyty strategiczne
    ochrona depozytów
    minerały krytyczne
    strategic deposits
    deposits protection
    critical minerals
    Opis:
    Defining a list of strategic deposits is an indispensable activity for preparing the mineral resources policy, a governmental programming and planning document serving to ensure long-term mineral security of the country. Some mineral deposits play a fundamental role in the functioning of the economy and therefore require special protection. Such deposits are referred to under various terms (strategic, key, deficit and critical mineral deposits). Until now, none of these terms has a normative character in Poland. As of 2019, the Polish Geological Institute-National Research Institute is prepares a list of strategic deposits on behalf of the Chief Geologist of the Country. To accomplish this task, a special methodology was developed (using and modifying previously published studies and proposals and the EU approach to critical minerals). Special attention was paid to the issue of legal protection of deposits in the system of planning protection. Based on multi-criteria analysis, deposits of local and regional, national and supranational importance and a list of strategic deposits have been defined. Special plan protection (strategic deposits and those recognized as equivalent for spatial planning) should be extended to 266 deposits out of more than 14 000 documented deposits listed in MIDAS database.
    Źródło:
    Przegląd Geologiczny; 2022, 70, 7; 499--502
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Meteoryty, kratery uderzeniowe i inne ślady kosmicznej katastrofy w rejonie Moraska pod Poznaniem
    Meteorites, impact craters, and other traces of a cosmic disaster at Morasko near Poznań
    Autorzy:
    Szczuciński, Witold
    Muszyński, Andrzej
    Powiązania:
    https://bibliotekanauki.pl/articles/2076071.pdf
    Data publikacji:
    2020
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    krater uderzeniowy
    meteoryt
    depozyty wyrzucane
    Holocen
    Polska
    impact crater
    meteorite
    ejecta deposits
    Holocene
    Polska
    Opis:
    About 5,000 years ago near Morasko (the district of the present-day city of Poznań, western Poland) the largest known iron meteorite shower in Central Europe took place. The evidence of that impact, documented so far, comprises numerous iron meteorite fragments distributed over an area of approximately 3 km2 and at least six meteorite impact craters with a maximum diameter of about 100 m. The present paper reviews the most recent findings related to the meteorite, craters, processes of their formation, as well as the environmental effects of the impact in the Morasko area. The most important findings, reported in this review cover: 1) the recognition of two new minerals in the meteorite: moraskoite and czochralskiite; 2) the identification and detailed analysis of the ejecta layer around the craters and underlying paleosoil providing evidence for the mid-Holocene age of the impact; 3) the numerical modelling constraining the range of likely physical properties of the impactor, e.g. the diameter of the projectile forming the largest crater and its landing velocity (c. 1.5 m and 10km/s, respectively);4) the studies of the nearby lake and peat deposits revealing restricted environmental effects of the impact. The Morasko craters field is currently one of the best-studied examples of small/moderate-sized meteorite impact in unconsolidated sediments.
    Źródło:
    Przegląd Geologiczny; 2020, 68, 8; 637--644
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Charakterystyka sedymentologiczna górnej części warstw szydłóweckich
    Sedimentology of the upper part of the Szydłówek Beds
    Autorzy:
    Vierek, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2074594.pdf
    Data publikacji:
    2008
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Góry Świętokrzyskie
    fran
    węglany
    depozyty
    turbidyty
    Holy Cross Mountains
    Frasnian
    carbonates
    storm deposits
    surge-like turbidity flows
    Opis:
    The Givetian to Frasnian boundary interval in the N part of the Kielce region (Holy Cross Mts.) consists of dark-coloured shales, marls and micritic limestones defined as Szydłówek Beds. The upper parts of the Szydłówek Beds are well exposed in the Kostomłoty-Mogiłki and Górno-Józefka quarries. These sections are situated in Kostomłoty transitional facies zone between the shallow-water carbonate platform and the deeper Łysogóry basin. The uppermost parts of the Szydłówek Beds comprise many fine-grained intercalations: laminated calcisiltites, calcarenites, calcirudites and coquinas beds. The shales, marls and micritic limestones are hemipelagic deposits of deep, quiet and oxygen-depleted basin, whereas grained limestones correspond with shallower water and higher energy environment. Laminated calcisiltites and finer calcarenites originated in the environment below storm wave base and are interpreted as surge-like turbidity flows deposits. Thicker calcarenites, calcirudites, and coquinas beds were deposited about storm wave base and are interpreted as tempestites.
    Źródło:
    Przegląd Geologiczny; 2008, 56, 9; 848-856
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ograniczenia środowiskowe obszarów perspektywicznych wystąpień rud metali i surowców chemicznych w Polsce
    Environmental constraints for prospective areas of the occurrences of metal ores and chemical raw materials in Poland
    Autorzy:
    Sikorska-Maykowska, M.
    Kostrz-Sikora, P.
    Bliźniuk, A.
    Piotrowska, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2075360.pdf
    Data publikacji:
    2015
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    obszary perspektywiczne
    rudy metali
    surowce chemiczne
    depozyty
    ograniczenia środowiskowe
    prospective areas
    presence of metal ores and chemical raw materials
    deposits
    environmental constraints
    Opis:
    The paper presents the criteria that were used to assess the environmental constraints for prospective areas of the occurrences of either metal ores or chemical raw materials in Poland. The databases associated with “The Geoenvironmental Map of Poland at a scale 1 : 50 000” were used as the basis for the development of these criteria, which have allowed applying an innovative approach. The final result is presented as a datasheet of individual environmental conditions for every prospective area under consideration. Each datasheet includes, among others: geological conditions which determine the type of mining methods to be applied, and environmental conservation areas and elements vulnerable to negative impact of deposit exploitation. The integral part of each datasheet is a location sketch showing the position of the prospective area on the backdrop of the available data on environmental conditions. This data may be used as a basis for further, more detailed studies. Moreover, it may be helpful for local administration bodies in zoning and land use planning tasks.
    Źródło:
    Przegląd Geologiczny; 2015, 63, 9; 589--597
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Badania i poszukiwania złóż cynku i ołowiu, Mo-W-Cu, uranu, ziem rzadkich, złota oraz kopalin morskich prowadzone przez Państwowy Instytut Geologiczny
    Research and exploration of zinc and lead, Mo-W-Cu, uranium, REE and gold deposits as well as marine mineral resources at the Polish Geological Institute
    Autorzy:
    Wołkowicz, Stanisław
    Dymowski, Witold
    Markowiak, Marek
    Mikulski, Stanisław
    Szamałek, Krzysztof
    Powiązania:
    https://bibliotekanauki.pl/articles/2074295.pdf
    Data publikacji:
    2019
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Państwowy Instytut Geologiczny
    badania złóż mineralnych w Polsce
    złoża Zn-Pb
    złoża Mo-W-Cu
    złoża uranu
    depozyty REE
    złoża złota
    złoża morskie
    Polish Geological Institute
    mineral deposits research in Poland
    Zn-Pb deposits
    Mo-W-Cu deposits
    uranium deposits
    REE deposits
    gold deposits
    marine deposits
    Opis:
    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.
    Źródło:
    Przegląd Geologiczny; 2019, 67, 7; 599--609
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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