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Tytuł:
BADANIA PROWENIENCYJNE W EUROPIE I STANACH ZJEDNOCZONYCH
PROVENANCE STUDIES IN EUROPE AND THE USA
Autorzy:
Maria, Romanowska-Zadrożna,
Powiązania:
https://bibliotekanauki.pl/articles/433326.pdf
Data publikacji:
2015
Wydawca:
Krajowy Ośrodek Badań i Dokumentacji Zabytków
Tematy:
provenance studies
provenance
museums
databases
war losses
ownership title
Opis:
The term „provenance” which describes the history of the ownership of works of art, etymologically originated from Latin, and in Polish meant „origin” or „income”. When it comes to art objects, both terms have a certain correlation – the better-documented the origin, the higher the value of the object, which influences its market price and academic significance. The deliberate falsification of provenance was the result of the desire to make a profit, interest potential buyers in the subject for sale, raise prices or disguise the true fate of the object. Misreading ownership titles led to its unconscious falsification. Provenance studies gained great importance in cases related to war confiscations, plunder, thefts and interiors, as a result of which works were deprived of their origin. Painstaking research is often required in order to restore their history to them. Partially unresolved cases as a consequence of World War II of cultural goods returned in the 1990s under pressure from the Jewish lobby. During conferences in Washington (1998), Vilnius (2000) and Prague (2009), declarations urging museums to review their collections for exhibits of unknown origin or which had gaps in their histories between 1933-1945 were adopted. In 2000, the American Association of Museums [now the American Alliance of Museums - translator’s note] published a handbook of provenance studies, and since 2003 the website The NaziEra Provenance enables American museums to publish the results of such studies. Centres for registering, analysing and seeking war losses and carrying out provenance studies have been founded in Europe, including in Poland. The complicated fate of Polish collections during and after World War II impinge on the scope and need of such studies. Objects transported from German repositories which remained unidentified lost their provenance. Works lent to decorate governmental offices and relocated without the consent of the proprietor were also covered. Recently published catalogues of museum and private collections are examples of reliable provenance studies.
Słowo „proweniencja” określające dzieje własności dzieł artystycznych, etymologicznie wywodziło się z łaciny i przyswojone w języku polskim oznaczało „pochodzenie” lub „dochód”. W kontekście dzieła sztuki oba te znaczenia wykazują swoistą korelację – im lepiej udokumentowane pochodzenie, tym większa wartość dzieła, wpływająca na jego cenę rynkową i znaczenie naukowe. Celowe fałszowanie proweniencji wypływało z chęci zysku, zainteresowania potencjalnego nabywcy przedmiotem sprzedaży, podbicia ceny, lub ukrycia prawdziwych losów dzieła. Błędne odczytanie znaków własnościowych zafałszowywało ją nieświadomie. Badania proweniencyjne zyskały ogromne znaczenie w przypadkach dotyczących wojennych konfiskat, grabieży, kradzieży i przemieszczeń, w wyniku których dzieła zatraciły swoje pochodzenie. Potrzeba często żmudnych badań, by przywrócić im ich historię. Nierozwiązane w pełni sprawy likwidacji skutków II wojny światowej w zakresie dóbr kulturalnych powróciły w latach 90. XX w., pod wpływem nacisków lobby żydowskiego. Podczas konferencji w Waszyngtonie (1998), Wilnie (2000) i Pradze (2009) uchwalono deklaracje wzywające muzea do przejrzenia zbiorów pod kątem muzealiów o niejasnym pochodzeniu lub mające lukę w swojej historii w latach 1933–1945. W 2000 r. Stowarzyszenie Muzeów Amerykańskich wydało podręcznik badań proweniencyjnych, a od 2003 r. na portalu internetowym The Nazi-Era Provenance muzea amerykańskie mogły zamieszczać wyniki tych badań. W Europie, w tym także w Polsce, powstały ośrodki rejestrujące, opracowujące i poszukujące straty wojenne oraz prowadzące w tym kontekście badania proweniencyjne. Skomplikowane losy polskich zbiorów w czasie II wojny światowej i po niej rzutują na zakres i potrzebę takich badań. Przywożone z niemieckich składnic rewindykowane przedmioty, nierozpoznane, zatracały swoją proweniencję. Dotykało to również dzieł wypożyczanych do dekoracji urzędów i przemieszczanych bez zgody właściciela. Przykładami rzetelnych badań proweniencyjnych są ostatnio wydawane katalogi zbiorów muzealnych i kolekcji prywatnych.
Źródło:
Muzealnictwo; 2015, 56; 230-243
0464-1086
Pojawia się w:
Muzealnictwo
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
What Support do Systematic Reviews Provide for Evidence-informed Teaching about Software Engineering Practice?
Autorzy:
Budgen, David
Brereton, Pearl
Williams, Nikki
Drummond, Sarah
Powiązania:
https://bibliotekanauki.pl/articles/953058.pdf
Data publikacji:
2020
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
systematic review
education
provenance
Opis:
Background: The adoption of the evidence-based research paradigm by software engineering researchers has created a growing knowledge base provided by the outcomes from systematic reviews. Aim: We set out to identify and catalogue a sample of the knowledge provided by systematic reviews, to determine what support they can provide for an evidence-informed approach to teaching about software engineering practice. Method: We undertook a tertiary study (a mapping study of systematic reviews) covering the period to the end of 2015. We identified and catalogued those reviews that had findings or made recommendations that were considered relevant to teaching about industry practice. Results: We examined a sample of 276 systematic reviews, selecting 49 for which we could clearly identify practice-oriented findings and recommendations that were supported by the data analysis provided in the review. We have classified these against established software engineering education knowledge categories and discuss the extent and forms of knowledge provided for each category. Conclusion: While systematic reviews can provide knowledge that can inform teaching about practice, relatively few systematic reviews present the outcomes in a form suitable for this purpose. Using a suitable format for presenting a summary of outcomes could improve this. Additionally, the increasing number of published systematic reviews suggests that there is a need for greater coordination regarding the cataloguing of their findings and recommendations.
Źródło:
e-Informatica Software Engineering Journal; 2020, 14, 1; 7-60
1897-7979
Pojawia się w:
e-Informatica Software Engineering Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pottery Samples Recovered From Abu Erteila (Sudan) – Correlation of Macroscopically Identified Fabrics With Laboratory-defined Raw Material Groups
Próbki ceramiki z wykopalisk w Abu Erteila (Sudan) – korelacja makroskopowo zidentyfikowanych tworzyw ceramicznych z laboratoryjnie określonymi grupami surowcowymi
Autorzy:
Daszkiewicz, Małgorzata
Malykh, Swietlana
Powiązania:
https://bibliotekanauki.pl/articles/16421837.pdf
Data publikacji:
2017-06-15
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
Meroitic ceramics
MGR-analysis
provenance studies
Opis:
This article reports on the use of laboratory analysis to examine whether pottery recovered from excavations at Abu Erteila includes wares made at the same workshops as pottery found at other Meroitic sites in the region. It also examines whether wares deemed typical of the Abu Erteila ceramic assemblage were made of the same raw materials as pottery at neighbouring sites or clay used at other workshops. Particular attention was paid to assessing whether samples with fabrics which macroscopically resemble the Musawwarat fabrics were indeed made at workshops in Musawwarat or whether this macroscopic similarity is deceptive.  
Źródło:
Studia Europaea Gnesnensia; 2017, 15; 9-36
2082-5951
Pojawia się w:
Studia Europaea Gnesnensia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geochemistry of shales of the Qadir Member (Nayband Formation, Upper Triassic), East Central Iran (Tabas Block) : implications for provenance and palaeogeography
Autorzy:
Zamaniyan, Ehsan
Khanehbad, Mohammad
Moussavi-Harami, Reza
Mahboubi, Asadollah
Powiązania:
https://bibliotekanauki.pl/articles/2058574.pdf
Data publikacji:
2019
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Triassic
Nayband Formation
Tabas
provenance
geochemistry
Opis:
The Upper Triassic shale of the Qadir Member of the Nayband Formation, East Central Iran has been analysed geochemically to evaluate provenance and palaeogeography. The Qadir Member in the Parvadeh Coal Mine section is 450 metres thick, and includes sandstone, shale, coal, siltstone, and fossiliferous limestone. XRD analysis of shale samples from the Qadir Member largely indicated the presence of illite and chlorite, with small amounts of kaolinite and montmorillonite. On binary and triangular diagrams the data suggests an intermediate igneous source rock for these shales. Plotting the geochemical data on binary diagrams also indicates the tectonic setting of an active continental margin, perhaps reflecting the Early Cimmerian tectonic event with Neothetys subduction under the Iran Plate, and collision of the Iran Plate with Turan during the Late Triassic. The Chemical Index of Alteration (CIA) and Plagioclase Index of Alteration (PIA) values for shale from the Qadir Member of Nayband Formation vary from 74.04 to 80.54 (average 78.02) and 84.31 to 91.85 (average 87.81), respectively, indicating moderate to high chemical alteration in the source area and suggesting a semi-humid climate during deposition. The geochemical data and palaeogeographical models indicate that the Qadir Member shale was deposited on an active margin in a shoreline to transitional-marine setting.
Źródło:
Geological Quarterly; 2019, 63, 3; 603--618
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Provenance of the Malužiná Formation sandstones (Western Carpathians, Slovakia): constraints from standard petrography, cathodoluminescence imaging, and mineral chemistry of feldspars
Autorzy:
Vdacny, M.
Powiązania:
https://bibliotekanauki.pl/articles/2060008.pdf
Data publikacji:
2013
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Sandstone Petrography
Cathodoluminescence
Mineral Chemistry
provenance
Opis:
Petrographic, cathodoluminescence, and phase chemistry studies of detrital grains were carried out on sandstones from the Permian Malužiná Formation in the Malé Karpaty Mts. (Hronic Unit, Western Carpathians, Slovakia) to determine their provenance and tectonic setting during the Permian. The results of the present study suggest derivation of the Malužiná Formation sandstones from multiple source areas. Major source lithologies were acid (felsic) plutonic rocks and low- to high-grade metamorphic rocks (probably metamorphosed igneous rocks and metasedimentary rocks), but notable amounts of detritus were also derived from felsic and mafic volcanic rocks. There was only a minor contribution from sedimentary rocks. Detritus was stripped rapidly from broken, high-relief source areas before weathering processes could destroy unstable framework constituents, as documented by the relatively high content of unstable rock fragments and the high feldspar content in the sandstones investigated. The provenance characteristics indicate that deposition of the sandstones of the Malužiná Formation occurred in a rifted continental margin environment supplied from an uplifted area on a thick continental crust composed of rocks of older fold belts.
Źródło:
Geological Quarterly; 2013, 57, 1; 61--72
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Detritus from Variscan lower crust in Rotliegend sandstones of the Intra-Sudetic Basin, SW Poland, revealed by detrital high-pyrope garnet
Autorzy:
Biernacka, J.
Powiązania:
https://bibliotekanauki.pl/articles/191532.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
Permian
Sudetes
sandstone
provenance
detrital garnet
granulite
Opis:
It is well established that pebbles in the Sudetic Permian conglomerates were derived from the nearby Variscan massifs of upper-crustal composition. However, the provenance of the sand-size grains remains enigmatic. Electron microprobe analyses (EMPAs) of detrital garnet from upper Rotliegend conglomerates and sandstones exposed at Golińsk, the Intra-Sudetic Basin, showed a distinct assemblage dominated by high-pyrope (high-grossular) almandine, typical of high-grade metamorphic rocks, such as high-pressure granulites. These results, coupled with a previously reported population of similar detrital garnet in the stratigraphically equivalent conglomerates and sandstones of the Karkonosze Piedmont Basin, suggest regional input of detrital lower-crustal material. This detritus was derived ultimately either from the Moldanubian Zone of the Bohemian Massif, or from high-grade rocks of the Orlica-Śnieżnik Massif that were exposed in the Carboniferous–Permian. Permian siliciclastic rocks might have covered a large part of the Sudetes. During the Mesozoic and Palaeogene, these rocks might have been recycled further, contributing high-pyrope garnet, as an accessory mineral, into siliciclastic rocks of the Sudetes and their foreland.
Źródło:
Annales Societatis Geologorum Poloniae; 2012, 82, 1; 127--138
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Detritus from Variscan lower crust in Rotliegend sand stones of the Intra-Sudetic Basin, SW Poland, revealed by detrital high-pyrope garnet
Autorzy:
Biernacka, J.
Powiązania:
https://bibliotekanauki.pl/articles/191747.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
Permian
Sudetes
sandstone
provenance
detrital garnet
granulite
Opis:
It is well established that pebbles in the Sudetic Permian conglomerates were derived from the nearby Variscan massifs of upper-crustal composition. However, the provenance of the sand-size grains remains enigmatic. Electron microprobe analyses (EMPAs) of detrital garnet from upper Rotliegend conglomerates and sandstones exposed at Golińsk, the Intra-Sudetic Basin, showed a distinct assemblage dominated by high-pyrope (high-grossular) almandine, typical of high-grade metamorphic rocks, such as high-pressure granulites. These results, coupled with a previously reported population of similar detrital garnet in the stratigraphically equivalent conglomerates and sandstones of the Karkonosze Piedmont Basin, suggest regional input of detrital lower-crustal material. This detritus was derived ultimately either from the Moldanubian Zone of the Bohemian Massif, or from high-grade rocks of the Orlica-Śnieżnik Massif that were exposed in the Carboniferous–Permian. Permian siliciclastic rocks might have covered a large part of the Sudetes. During the Mesozoic and Palaeogene, these rocks might have been recycled further, contributing high-pyrope garnet, as an accessory mineral, into siliciclastic rocks of the Sudetes and their foreland.
Źródło:
Annales Societatis Geologorum Poloniae; 2012, 82, 2; 127--138
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Meteoryt Pułtusk w wybranych zagranicznych kolekcjach
Pułtusk meteorites in selected world collections
Autorzy:
Biała, Jadwiga
Jakubowski, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/1032379.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Meteorytowe
Tematy:
Pultusk
collecting
fall
historical
meteorites
museums
provenance
Opis:
On 31 January 1868, a bright fireball was observed over Poland and tens of thousands of meteorites fell northeast of the town of Pułtusk. Immediately after the fall, locals from Pułtusk went out to collect the meteorites estimated to number between 70,000 to 180,000 individual specimens. Pieces ranged from a single gram to 9 kg. The Zambrzycki family who were local land owners traded the largest mass of Pułtusk specimens to various international museums. Study shows information form institutions including Bonn, Berlin, London, Vienna, Paris, Smithsonian (Washington) and Stockholm. This paper documents the world’s biggest collections of Pułtusk specimens, and the provenance of specimens listing the original dealers, collectors and scientist who provided specimens to the various museum and institutional collections at the time.
Źródło:
Acta Societatis Metheoriticae Polonorum; 2019, 10; 13-22
2080-5497
Pojawia się w:
Acta Societatis Metheoriticae Polonorum
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Petrographic and geochemical study of the Maastrichtian Ajali Sandstone, North Central Nigeria
Autorzy:
Ogala, J. E.
Olobaniyi, S. B.
Omo-Irabor, O. O.
Adaikpoh, E. O.
Powiązania:
https://bibliotekanauki.pl/articles/2059843.pdf
Data publikacji:
2015
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
petrography
geochemistry
Ajali Sandstone
provenance
tectonic setting
Opis:
he Upper Cretaceous Ajali Sandstone is an extensive stratigraphic unit of the Anambra Basin in southern Nigeria. It consists of friable, white cross-bedded sandstones exhibiting a fining upward sequence. Structures such as bioturbation, planar and herringbone cross beds indicate variability in depositional environment ranging from fluviatile to deltaic. Petrographic and geochemical compositions (major and trace elements) of these sandstones have been investigated to determine their provenance, tectonic setting and weathering conditions. Fifteen sandstone samples examined are rich in quartz but poor in feldspar and lithic fragments. Texturally, the framework grains of the sandstones are fine- to medium-grained, sub-angular to sub-rounded, moderately sorted to poorly sorted, positively skewed and leptokurtic. The sandstones are texturally immature as depicted by their sub-angular edges of grains, but mineralogically mature in terms of high percentage of quartz. The high chemical index of alteration (CIA) values (71.0–99.2%) for these sandstones suggests that they were derived from highly weathered rocks in the source area. The composition of the major oxides in the sandstones revealed that SiO2 (49.1–99.7%), Al2O3 (0.2–30.3%), Fe2O3 (0.4–1.8%) and TiO2 (0.06–3.2%) were the most abundant elements in all sandstone samples indicating a high detrital quartz and clay mineral content. The Al2O3/TiO2 ratios (1.47 to 12.48), Ti/Zr (6.48–18.63) and Zr/Cr (2.24–22.36) suggest that the sandstones were derived from variable basement complex rocks, including some contribution from mafic or ultramafic components. Inferences from the plots of K2O/Na2O versus SiO2 indicated a passive margin tectonic setting for the sandstones. The high loading of CaO and Na2O in more than 50% of the samples is indicative of terrigenous input, mainly in the form of carbonates and silicates. These results are generally consistent with a derivation of the sandstones from adjacent igneous and metamorphic basement complexes (Cameroon–Adamawa highlands and Oban Massif) while the extensive and blanket-like geometry of the Ajali Sandstone is indicative of an excellent reservoir for groundwater in the Anambra Basin.
Źródło:
Geological Quarterly; 2015, 59, 1; 79--90
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Variation in growth and survival among European provenances of Pinus sylvestris in a 30-year-old experiment
Autorzy:
Barzdajn, W.
Kowalkowski, W.
Chmura, D.J.
Powiązania:
https://bibliotekanauki.pl/articles/41160.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
plant growth
survival
provenance transfer
provenance trial
forest tree
Scotch pine
Pinus sylvestris
variation
long-term experiment
productivity
Opis:
Provenance trials with forest trees provide valuable information about growth and adaptability of populations often transferred over large geographical and climatic distances. In this study we evaluated growth and survival of 19 Scots pine (Pinus sylvestris L.) populations representing most of the natural range of the species in Europe, growing in a 30-year-old provenance trial in the northeastern Poland. We used cluster analysis to investigate differentiation among those populations in growth and survival. We also used published data on needle morphology and allozyme and DNA marker variation for those same populations to compare groupings of populations based on growth and needle traits and markers. We found significant variation among tested populations in all investigated traits – the largest variation was found for stand volume which integrates information on growth and survival. Variation in growth traits was related to the latitude of population origin with populations from the latitudinal band between 49° N and 54° N showing the best performance. Populations originating from both north and south off of that region showed lower productivity, which for southern provenances resulted from their particularly low survival, reflecting the lack of adaptation to the environment of the research site. Grouping of populations based on growth traits revealed three clusters corresponding to the three latitudinal regions – northern, central and southern. Needle morphological traits were not appropriate as markers of productivity. Clustering of populations based on needle morphology, and especially based on biochemical and molecular markers, did not correspond to the grouping based on growth traits.
Źródło:
Dendrobiology; 2016, 75
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
BADANIA PROWENIENCYJNE W POLSCE (CZĘŚĆ 2.)
PROVENANCE STUDIES IN POLAND (PART 2)
Autorzy:
Maria, Romanowska-Zadrożna,
Powiązania:
https://bibliotekanauki.pl/articles/433222.pdf
Data publikacji:
2017
Wydawca:
Krajowy Ośrodek Badań i Dokumentacji Zabytków
Tematy:
badania proweniencyjne
straty wojenne
rewindykacje
restytucja dóbr kultury
proweniencja
provenance studies
war losses
requisition
restitution of cultural goods
provenance
Opis:
This article continues the first part of Provenance studies in Poland published in issue 57 of the “Muzealnictwo” Annual in 2016, and complements the text published two years ago, which was more general and focused on the situation in the USA and Europe. It presents diverse aspects of the topic, through statistical analysis of the situation in our museums and discussing works by Polish authors who tackled the problem of methodology, including first texts on library science and war losses, so-called orphaned works and property of Holocaust victims, and the post-war situation which contributed to the work’s loss of its origin. The article also draws attention to the legal aspects of purchasing artworks without due diligence, as well as to the verification of museum exhibits’ origin before obtaining legal protection for those works which are to be placed under so-called museum immunity. In the literature on provenance studies when examining the provenance of artworks, the increasing role of digital tools, such as the internet or digitisation, has been noted. Attention has also been drawn to the contribution of conservators and their innovative methods which may help determine the origin of an object. Another aspect raised in the text is the issue of the theoretical preparation to conduct provenance studies as well as the education which is already standard in library science faculties, but still a long-awaited subject for students of art history and archiving. Although NIMOZ has already organised day-long workshops for museum professionals, and the University of Warsaw has conducted academic seminars lasting several hours, there is still a long way before reaching the two-term studies offered at the Berlin Open University.
Niniejszy artykuł jest kontynuacją opublikowanej w „Muzealnictwie” 57’2016 części pierwszej Badań proweniencyjnych w Polsce oraz uzupełnieniem tekstu sprzed 2 lat – bardziej ogólnego, skupiającego się na sytuacji w USA i Europie. Prezentuje on różne aspekty tego zagadnienia, zarówno poprzez statystyczne rozpoznanie sytuacji w naszych muzeach, jak i omówienie prac polskich autorów poruszających problemy metodologii, w tym prekursorskich tekstów z dziedziny bibliotekoznawstwa, a także strat wojennych, tzw. dzieł osieroconych i mienia ofiar Holocaustu oraz powojennej sytuacji przyczyniającej się do zatracanie przez dzieła swojego pochodzenia. W tekście zwrócono uwagę na aspekty prawne nabywania dzieł bez zachowania należytej staranności oraz na weryfikację pochodzenia muzealiów przed uzyskaniem ochrony prawnej dzieł, które mają zostać objęte tzw. immunitetem muzealnym. W literaturze na temat badań proweniencyjnych zauważano wzrastającą – w procesie badania proweniencji dzieł sztuki – rolę narzędzi cyfrowych, takich jak internet, czy digitalizacja. Zwrócono także uwagę na wkład konserwatorów i opracowanych przez nich nowatorskich metod, które mogą wspomagać działania mające na celu określenie pochodzenia przedmiotu. Osobnym zagadnieniem poruszanym w tekście jest kwestia przygotowania teoretycznego do prowadzenia badań proweniencyjnych i edukacja, będąca już standardem na kierunkach bibliotekoznawczych, a oczekiwanym przedmiotem w procesie nauczania przez studentów historii sztuki i archiwistyki. Dla muzealników zorganizowane zostały w NIMOZie całodniowe szkolenia, a na Uniwersytecie Warszawskim kilkugodzinne zajęcia akademickie, jednak daleko im jeszcze do dwusemestralnych studiów proponowanych w Berlinie na Wolnym Uniwersytecie.
Źródło:
Muzealnictwo; 2017, 58; 47-59
0464-1086
Pojawia się w:
Muzealnictwo
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
SHRIMP U-Pb zircon chronology of the Polish Western Outer Carpathians source areas
Autorzy:
Budzyń, B.
Dunkley, D. J.
Kusiak, M. A.
Poprawa, P.
Malata, T.
Skiba, M.
Paszkowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/191475.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
zircon
U-Pb geochronology
ion microprobe
provenance
Carpathians
Opis:
The Western Outer Carpathians flysch of Poland comprises clasts of crystalline rocks representing source areas that supplied sedimentary basins with clastic material. Zircon from quartz syenite and granite cobbles representing the Silesian Ridge, the currently unexposed source area located at the southern margin of the Silesian Basin, yielded uniform U-Pb dates of 604š6 Ma and 599š6 Ma. These are interpreted as the age of igneous crystallization. Similarly, zircon from a gneiss cobble derived from the northern source terrain gave 610š6 Ma date, which is interpreted as the age of crystallization of the granitic protolith to the gneiss. The Neoproterozoic magmatism is interpreted to have occurred at the Gondwana active margin.
Źródło:
Annales Societatis Geologorum Poloniae; 2011, 81, No 2; 161-171
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Problematyka rozpoznania przynależności zespołowej i zespołów rozbitych w opracowaniu akt sądów powszechnych Rzeczypospolitej Polskiej okresu międzywojennego z terenu byłego Królestwa Polskiego
Autorzy:
Magier, Dariusz
Powiązania:
https://bibliotekanauki.pl/articles/631592.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
archiving, provenance, courts, file
archiwistyka, proweniencja, sądy, akta
Opis:
In the interwar period, judiciary was one of three principal and independent public authorities of the Republic of Poland acting in the name of the nation. There were three sectors of judiciary: general, administrative and military. Due to the organization and functions played in the public life, documentation drawn up by general courts is now essential for both research and official purposes. Therefore, the analysis of official documents poses a formidable challenge for national archives. The aim of the article is to point at a difficulty which arises before an archivist in the initial phase of a document analysis, namely discovering its origin and explaining why a single document could be found in numerous archives.
W okresie międzywojennym sądownictwo stanowiło jeden z trzech podstawowych, niezawisłych organów władzy Rzeczypospolitej Polskiej sprawowanej w imieniu narodu. Funkcjonowały trzy piony sądownictwa: powszechne, administracyjne i wojskowe. Dokumentacja wytworzona przez sądy powszechne, z uwagi na ich strukturę organizacyjną oraz istotne funkcje w życiu społecznym, ma bardzo duże znaczenie zarówno do celów badawczych, jak i urzędowych. Z tej racji prawidłowe opracowanie akt sądowych stanowi duże wyzwanie stojące przed archiwami państwowymi. Celem artykułu jest zasygnalizowanie problemów związanych z jedną z trudności, jakie napotyka archiwista opracowujący akta sądu powszechnego już na początku procesu opracowania – na etapie rozpoznania przynależności zespołowej – i związanego z nim zagadnienia zespołów rozbitych.
Źródło:
Res Historica; 2017, 44
2082-6060
Pojawia się w:
Res Historica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The geochemical composition of sediment as a proxy of provenance and weathering intensity: a case study of Southwest Nigeria’s Coastal Creeks
Autorzy:
Phillips, O. A.
Falana, A. O.
Adebayo, A. J.
Powiązania:
https://bibliotekanauki.pl/articles/184285.pdf
Data publikacji:
2017
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
Badagry Creek
Yewa Creek
elemental ratios
provenance
weathering
Opis:
The study of the geochemical composition of sediments was undertaken to evaluate the degree of weathering and appraise the relative proportion of mafic and felsic rock materials being transported from source to sink. Thirty-three surface sediment samples collected from the creeks were used for particle size and chemical analyses. An inductively coupled plasma-Mass Spectrometer was used to determine the elemental composition of the sediments. The clay dominated Yewa and western Badagry creeks gave evidence of higher average concentrations of Ni, Sr, Y, Nb, Sc, Co, V, and Th than the eastern end of segment of Badagry Creek. The data generated from elemental ratios such as Al 2 O 3 /TiO 2, TiO 2 /Zr and binary plots of Th/Sc-Cr/Sc, Th-Sc, Y/Ni-Cr/V, TiO 2 -Zr and ICV-CIA (index of compositional variability against chemical index of alteration) showed that source sediments are composed of upper and lower crustal compositions. Also, the creeks were marked by their variation in terms of the proportion of felsic and mafic components. For instance, Yewa and western Badagry creeks are more enriched in mafic constituents, whereas the enrichment of felsic materials is significant at the eastern end of Badagry Creek. Inferring from the chemical index of alteration and plagioclase index of alteration (PIA), the Yewa and western Badagry creeks have been moderately to intensely weathered and incipient weathering was identified in the eastern end of Badagry Creek.
Źródło:
Geology, Geophysics and Environment; 2017, 43, 3; 229-248
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geochemistry of siliciclastic rocks from the Shemshak Group (Upper Triassic-Middle Jurassic), northeastern Alborz, northern Iran : implications for palaeoweathering, provenance, and tectonic setting
Autorzy:
Taheri, A.
Jafarzadeh, M.
Armstrong-Altrin, J. S.
Mirbagheri, S. R.
Powiązania:
https://bibliotekanauki.pl/articles/2060454.pdf
Data publikacji:
2018
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Shemshak Group
geochemistry
provenance
palaeoweathering
tectonic setting
Neotethys
Opis:
Combined petrographic and geochemical data of the siliciclastic sedimentary rocks from the Shemshak Group in the northeastern Alborz Mountains, north of Iran are described, together with their implications for palaeoweathering, their provenance, and tectonic setting. Based on field observations and modal composition, the sandstones are classified as litharenites. The chemical index of alteration (CIA) indicated that the source terrains underwent a moderate intensity of chemical weathering. The index of chemical variation (ICV) values indicated that the Shemshak Group rocks were immature and related to a source area with an active tectonic regime. Major, trace and rare earth element (REE) data suggested the domination of mixed sedimentary (recycled) and igneous rocks in the source area of the Shemshak Group. Petrographic and geochemical characteristics of Shemshak Group rocks suggest an active continental margin (ACM), which corresponds to the collision of the Iran plate with the Turan plate.
Źródło:
Geological Quarterly; 2018, 62, 3; 522--535
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New data on heavy minerals from the Upper Cretaceous-Paleogene flysch of the Beskid Śląski Mts. (Polish Carpathians)
Autorzy:
Grzebyk, J.
Leszczyński, S.
Powiązania:
https://bibliotekanauki.pl/articles/2058926.pdf
Data publikacji:
2006
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Polska
Carpathians
Paleogene
Upper Cretaceous
heavy minerals
provenance
Opis:
The types, abundance and origin of non-opaque heavy minerals from17 samples of sandstones and granule conglomerates of the Godula Beds, Upper Istebna Sandstone, Ciężkowice and Cergowa Sandstone (Upper Cretaceous–Paleogene) of the Beskid Śląski Mts. are described in this study. The descriptions are based on standard optical petrographic investigations and on scanning electronmicroscope (including electron microprobe) analysis. Garnet, rutile, zircon and tourmaline are the most common types of heavyminerals. Monazite and apatite occur subordinately, whereas epidote and spinel are sporadic. The heavy minerals from the Middle and Upper Godula Beds and the Upper Istebna Sandstone indicate original derivation mainly from metamorphic rocks of granulite and partly eclogite facies. Metasediments were significant constituents, with subordinate granitoids and hornfelses. Granitoids and corresponding pegmatites and aplites, as well as metapelites and metapsammites, appear to be the primary crystalline parent rocks of the Lower Godula Beds and the Ciężkowice Sandstone. Garnet-mica schists with subordinate granitoids and their pegmatites are interpreted as the main crystalline parent rocks of the Cergowa Sandstone. Sporadic chromian spinels and chromian pyrope indicate derivation from mafic and ultramafic rocks. Co-occurrence of rounded and fresh unabraded grains (sometimes euhedral) suggests a mixed provenance for the clastic material, both from crystalline and older sedimentary rocks.
Źródło:
Geological Quarterly; 2006, 50, 2; 265-280
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geochemistry of Upper Cretaceous of the Bozeş Formation (Apuseni Mts., Romania) : provenance implications
Autorzy:
Zaharia, L.
Balc, R.
Stremţan, C. C.
Socaciu, A.
Powiązania:
https://bibliotekanauki.pl/articles/2059954.pdf
Data publikacji:
2016
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
geochemistry
provenance
Upper Cretaceous
Bozeş flysch
Apuseni Mountains
Opis:
A whole-rock geochemical study was carried out on sandstones from the Upper Cretaceous Bozeş Formation in the southeastern part of the Apuseni Mountains (Romania) in order to constrain their provenance and depositional setting. The geochemical results were compared and integrated with previously reported provenance indicators, such as framework composition and heavy mineral assemblages. The chemical composition is similar for all samples investigated, with limited ranges for both major oxides and trace elements. The sandstones are potassic (Na2O/K2O < 1) and can be classified mainly as arenites with a few greywackes. Their immature to relatively mature character is revealed by the SiO2/Al2O3 ratios, ranging between 3.90 and 11.25, as well as their high Sr/Rb ratios. The source rocks were affected by weak to moderate chemical alteration, as indicated by the specific index (CIA), with values between 47 and 71. The detrital material was influenced by a little hydraulic sorting during transportation, while post-depositional eftects were limited to K-metasomatism. Two major potential source types were identified based on the chemical composition of the samples studied: a felsic magmatic arc and a recycled, quartzose metasedimentary basement. Our data indicate that the depositional setting is likely to be on a convergent margin. The results are consistent with uplifted and exhumed Transylvanian basement as the major source area.
Źródło:
Geological Quarterly; 2016, 60, 3; 746--757
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nowe ustalenia na temat proweniencji Autografu Kościuszki w świetle korespondencji Tytusa Działyńskiego z Wiktorem Baworowskim
New findings concerning the provenance of Autograf Kościuszki in the light of the correspondence between Tytus Działyński and Wiktor Baworowski
Autorzy:
Zuzek, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/27317145.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Biblioteka Kórnicka PAN
Tematy:
Kościuszko
rękopis
edycje
korespondencja
proweniencja
manuscript
editions
correspondence
provenance
Opis:
Głównym celem artykułu jest przedstawienie historii cennego rękopisu przechowywanego w zbiorach Biblioteki Kórnickiej – Autografu Kościuszki. Rękopis ten, napisany przez Tadeusza Kościuszkę w połowie 1793 roku, zawiera Opis kampanii r. 1792, odbytej przeciw Rosji. Po analizie rękopisu oraz omówieniu wszystkich ośmiu edycji jego tekstu autor artykułu najpierw przedstawił jego historię do czasu śmierci Józefa Dobka Dzierzkowskiego ze Lwowa (1830). Następnie ukazał krótką historię znajomości Tytusa Działyńskiego z Wiktorem Baworowskim, zawartą w ich wzajemnej korespondencji, która zdradza nam dalsze skomplikowane losy Autografu Kościuszki – kto był jego kolejnym właścicielem i w jakich okolicznościach trafi ł on do zbiorów Biblioteki Kórnickiej. Na koniec omówione zostały wszystkie znane z literatury kopie tego rękopisu. W aneksie autor opublikował ww. korespondencję Działyńskiego z Baworowskim.
This paper aims to present the history of a precious manuscript from the collections of the Kórnik Library – Autograf Kościuszki. The manuscript, written by Tadeusz Kościuszko in mid-1793, contains Opis kampanii r. 1792 – a description of a campaign launched against Russia. Having analysed the manuscript and discussed all the eight editions of its text, the author of the article presents its history up until the death of Józef Dobek Dzierzkowski from Lviv (1830). He subsequently discusses a brief history of Tytus Działyński’s acquaintance with Wiktor Baworowski, as contained in their mutual correspondence, which discloses the further complex fate of Autograf Kościuszki – information on its subsequent owner and the circumstances in which it found its way into the collections of the Kórnik Library. Finally, all the copies of the manuscript known from literature are discussed. In the Annex, the author publishes inter alia the abovementioned correspondence between Działyński and Baworowski
Źródło:
Pamiętnik Biblioteki Kórnickiej; 2022, 39; 9-80
0551-3790
Pojawia się w:
Pamiętnik Biblioteki Kórnickiej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Ciechocinek Formation (Lower Jurassic) of SW Poland : petrology of green clastic rocks
Autorzy:
Leonowicz, P.
Powiązania:
https://bibliotekanauki.pl/articles/2058913.pdf
Data publikacji:
2005
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Lower Jurassic
Cracow-Silesian Upland
provenance
petrology
sandstones
mudstones
Opis:
The Lower Jurassic Ciechocinek Formation from the Czestochowa-Wielun region of SW Poland comprises greenish-grey muds and silts as well as poorly consolidated mudstones and siltstones with lenticular intercalations of fine-grained sands, sandstones and siderites. Analysis of a mineral composition indicates that the detrital material was derived mainly from the weathering of metamorphic and sedimentary rocks of the eastern Sudetes with their foreland and of the Upper Silesia area, and that this material underwent repeated redeposition. The Fe-rich chlorites which give the green colour to the mudstones of the Ciechocinek Formation are most probably early diagenetic minerals, genetically linked with the deposition in a brackish sedimentary basin.
Źródło:
Geological Quarterly; 2005, 49, 3; 317--330
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Texture and petrography of glacial deposits in the northern foothill of the Hruby Jesenik and Rychlebske Mts., Czechia
Autorzy:
Sikorova, J.
Višek, J.
Nyvlt, D.
Powiązania:
https://bibliotekanauki.pl/articles/2059228.pdf
Data publikacji:
2006
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
northern Moravia
clast shape
provenance
glaciofluvial sediment
heavy minerals
Opis:
The petrographic and mineralogical characteristics of glacial deposits from the localities in the northern foothills of the Hruby Jesenik and Rychlebske Mts. have been studied. Grain-size, petrographic composition, heavy minerals, clast shape and roundness have been investigated. The data obtained have been used to create a probability model to differentiate the stratigraphy of particular accumulations and for partial reconstruction of the advance direction of the ice sheet in the area. The main advance direction of the ice sheet was presumed to be from the NW to SE in this region. The erratic material was probably predominantly transported in the basal ice layers according to the clast shape and roundness. An Elsterian age of the sedimentary bodies investigated is suggested by correlation with analogous deposits in adjacent parts of Poland. This model contradicts previous correlations. However, further constraints on the stratigraphic position of these deposits would require the application of dating techniques.
Źródło:
Geological Quarterly; 2006, 50, 3; 345-352
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Provenance-specific climate sensitivity of Pinus massoniana – a multi-environmental trial in subtropical China
Autorzy:
Zhang, Z.
Jin, G.
Feng, Z.
Sun, L.
Zhou, Z.
Powiązania:
https://bibliotekanauki.pl/articles/2078265.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
Pinus massoniana
provenance
climate change
wood density
radial growth
Opis:
Climate change is causing changes in tree species performance and distribution, impacting breeding programme effectiveness. Our aim was to analyse the effects of provenance and climatic factors on the annual ring density of Masson pine (Pinus massoniana Lamb.) at different experimental sites and potential breeding strategies that may be developed in response to future climate change. The study trees represented provenances originating from the western, east-central, northern, and southern regions of P. massoniana distribution in China. The wood density differed significantly among provenances. A multisite variance analysis test showed that the type B correlation coefficients for ring density at the two sites stud- ied were less than 0.8, indicating an interaction effect of genotype by environment (G×E) on tree ring density. Climatic factors directly affected the wood density properties. At Chun’an (CA), the maximum latewood density (MXD) and minimum earlywood density (MND) were positively correlated with absolute maximum temperatures in August and May of the current growing season, respectively. At Taizi Mountain (TZS), MXD was significantly positively correlated with absolute maximum temperature in September of the current year and significantly negatively correlated with precipitation in June. MND was significantly positively correlated with absolute maximum temperature in May of the current year and significantly negatively correlated with precipitation in April. The climatic effects on P. massoniana wood density differed among seed-source origins. This study showed that ring density characteristics differed significantly among provenances, and provenance selection could promote wood density. MXD and MND exhibited significant genotype-by-environment interaction effects, and significant correlations were found between ring density and temperature and precipitation conditions. These findings suggest that climatic factors and site condi- tions in addition to genetics could be strong drivers of wood density variation, and/or that wood density is a highly plastic trait.
Źródło:
Dendrobiology; 2021, 85; 3-18
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nd and Sr isotopic evidence for provenance of clastic material of the Upper Triassic rocks of Silesia, Poland
Autorzy:
Konieczna, N.
Belka, Z.
Dopieralska, J.
Powiązania:
https://bibliotekanauki.pl/articles/191300.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
Nd isotopes
Sr isotopes
clastics
provenance
Upper Triassic
Polska
Opis:
Nd and Sr isotope data were used to characterize the sources of the Upper Triassic (Keuper) siliciclastic rocks of Silesia in southern Poland. This continental succession, consisting predominantly of fine-grained mud- stones and siltstones, yields a remarkably uniform Nd isotopic composition. Nd model ages T2DM vary from 1.56 to 1.69 Ga and εNd values are in the range from –8.9 to –11.2, documenting old crust contribution in the provenance. In contrast, the Sr isotopic composition (87Sr/86Sr) of the clastics exhibits a relatively large variation from 0.710 to 0.723. The isotopic compositions indicate that the southern part of the Germanic Basin in Silesia was supplied with clastic material from the Bohemian Massif. The axis of the drainage area must have crossed from SW to NE the Saxothuringian units of the East Sudetes and most probably also the area of the Tepla–Barrandian Unit. There is no indication of any sediment transport from the Moravo-Silesian Belt and the Fore-Sudetic Block. It seems, that the Palaeozoic rocks of the latter domain must have been buried completely during Late Triassic times.
Źródło:
Annales Societatis Geologorum Poloniae; 2015, 85, 4; 675-684
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Provenance of Lower Cretaceous deposits of the western part of the Silesian Nappe in Poland (Outer Carpathians): evidence from geochemistry
Autorzy:
Wójcik-Tabol, P.
Ślączka, A.
Powiązania:
https://bibliotekanauki.pl/articles/191335.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
Silesian Nappe
Lower Cretaceous
mineral composition
geochemistry
provenance
diagenesis
Opis:
The turbiditic to hemipelagic, fine-grained deposits of the Hradiště Formation (Hauterivian, 132 Ma) to the Lhoty Formation (Albian–Cenomanian, 99 Ma) in the western part of the Silesian Nappe (Polish Outer Car- pathians) were studied mineralogically and geochemically to determine if the main factors controlling the chemistry of the sedimentary material can be attributed to provenance, or to post-depositional processes. A high degree of weathering of the source rocks is indicated by the chemical index of alteration (CIA) that varies from 75.98 to 89.86, and Th/U ratios (~4 with outliers at 1.85 and >6). The cooccurrence of rounded and unabraded grains of zircon and rutile, the enrichment in Zr and Hf, as well as the high Zr/Sc ratios suggest that the Hradiště and Veřovice Formations contain recycled material. Plots of La/Th versus Hf and Th against Sc show that samples occur in the field of felsic and mixed felsic/basic sources. On a ternary La–Th–Sc diagram, all of the sediments studied are referable to the continental island-arc field. The European Plate, as an alimentary area, has a mosaic structure consisting of Cadomian and Variscan elements. The Proto-Silesian Ridge was detached from the continent, because of rifting. Therefore, it could have corresponded to a continental island arc. The concentrations of Fe and trace metals (e.g., Mo, Au, Cu) in the Veřovice Formation and silica and potassium additions to the Veřovice and Lhoty Formations, as well as the fractionation of REE, and Nb, Ta, Zr, Hf, and Y can be explained by the action of basinal brines. The fluids were of hydrothermal origin and/or were released, owing to the dewatering of clay minerals. Diagenetic processes could have exerted a greater influence on sedimentary rock chemistry than the provenance and sedimentary processes. A distinction between primary, terrigenous elements and those changed diagenetically is necessary for the reliable determination of provenance.
Źródło:
Annales Societatis Geologorum Poloniae; 2013, 83, 2; 113--132
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Relationship between the abrasion of tektite clasts and their host sedimentary facies, Pleistocene, SW Poland
Autorzy:
Brachaniec, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/191905.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
moldavite
fluvial redeposition
sedimentary facies
abrasion
laboratory experiments
provenance
Opis:
This study reports on the occurrence of tektite clasts with a markedly different degree of abrasion in two different fluvial facies of the Pleistocene deposits of the Nysa Kłodzka river near Paczków, SW Poland. The question addressed by the study is whether the redeposited and differently abraded tektite glass clasts derive from different distances/sources, or whether their differing degree of abrasion relates to their different host sediment as the medium of river bedload transport. Laboratory tumbling experiments are used to estimate the progress of tektite abrasion with the distance travelled within a bedload sediment of the corresponding grain-size composition. The study concludes that there is a direct relationship between the abrasion degree of tektites and their host sediment facies, but it is not simple and straight forward, as a range of specific factors comes potentially into play. Their role is discussed and is recommended to be taken into account in an abrasion experiment design and in the interpretation of experimental results. The study suggests that the tektite clasts found near Paczków were transported over a distance of about 2-4 km and were derived from denudation of the nearby Bardzkie Mts.
Źródło:
Annales Societatis Geologorum Poloniae; 2019, 89, 1; 83-90
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chromian spinels from the Magura Unit (Western Carpathians, Eastern Slovakia) : their petrogenetic and palaeogeographic implications
Autorzy:
Bónová, K.
Špisiak, J.
Bóna, J.
Kováčik, M.
Powiązania:
https://bibliotekanauki.pl/articles/2060358.pdf
Data publikacji:
2017
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Western Carpathians
Magura Basin
provenance
detrital chromian spinel
geochemistry
Opis:
Detrital chromian spinels in sedimentary rocks provide much information concerning the tectonics of their parental ultrabasic rocks. Chromian spinels occurring in the Eocene to Oligocene depos its from the Magura Nappe were exam i ned to provide some constraints on the history of the Magura Basin. The Magura Nappe is a part of the Flysch Belt belonging to the External Western Carpathians. The Magura Nappe is separated by a narrow zone associated with the Pieniny Klippen Belt and is divided into three principal tectono-lithofacies units (from the S to N): the Krynica, Bystrica and Rača units. Cr-spinel is a common accessory mineral (2.3-5.9 vol% of heavy mineral spectra) in the siliciclastic rocks of the Rača and Krynica units. In terms of texture and chemical composition, two types of Cr-spinels were recognized: unaltered and altered. Unaltered spinels were found to contain silicate inclusions such as chromio-pargasite, enstatite, diopside, pargasite, plagioclase and olivine (forsterite). The chromian spinels show wide variations in compositional parameters such as Cr# (0.3-0.7), Mg# (0.3-0.7), TiO2 (<0.03-1.9 wt.%) and Fe2+/Fe3+ (2.5-13) whereas the differences between the Rača and Krynica units are in- significant. These parameters suggest a peridotitic and volcanic origin of the spinels, respectively. The ophiolite source consisting of harzburgitic mantle peridotites was developed mainly in a supra-subduction zone setting; volcanic spinels indicate an origin in mid-ocean ridge basalts, back-arc basin basalts and sporadically in ocean-island basalts. Concerning their geochem i cal features, we propose that during the Eocene to Early Oligocene, the ophiolitic detritus in the eastern part of the Magura Basin deposits may have been derived from a source area located in the Fore-Marmarosh Suture Zone (Eastern Carpathians) that is considered an equivalent of the Black Flysch and Ceahlau units. Some Cr-spinels found in the Eocene sedimentary successions may have resedimented from older Late Cretaceous-Paleocene formations of the Magura Unit, which are considered as reworked sedimentary material from the Pieniny Klippen Belt.
Źródło:
Geological Quarterly; 2017, 61, 1; 3--18
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł

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