Wszystkie pola: palynological - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Petrographic, palynological and geochemical recognition of dispersed organic matter in the black Anthracosia Shales (Sudetes, south-west Poland)
Autorzy:: Nowak, Grzegorz J.
Górecka-Nowak, Anna
Karcz, Przemysław Paweł
Powiązania:: https://bibliotekanauki.pl/articles/2201206.pdf
Data publikacji:: 2022
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: Intrasudetic Basin
lacustrine black shales
organic petrography
palynofacies
Rock-Eval pyrolysis
petroleum source rocks
Opis:: We describe the organic petrography, palynology and Rock-Eval pyrolysis values of lacustrine black shales termed the Anthracosia Shales (Upper Carboniferous/Lower Permian) in the Intrasudetic Basin (Sudetes, SW Poland). Samples were taken from cores of two boreholes: Rybnica Leśna PIG 1 and Ścinawka Średnia PIG 1. Maceral composition, miospore assemblage composition, palynofacies and geochemical characteristics of dispersed organic matter in the Anthracosia Shales were used to determine conditions of the environment and to evaluate their petroleum potential. Data from both organic petrography and palynology analyses enabled recognition of three broadly distinct organic associations in these shales: bituminous, humic, and intermediate, while Rock-Eval pyrolysis revealed the presence of bituminous and humic kerogen types I and III. Type I corresponds to the bituminous association, with amorphous organic matter (AOM) dominant in the palynofacies, and type III corresponds to the humic association with phytoclasts prevailing in the palynofacies. The thermal maturity of the organic matter is determined by the values of: (1) vitrinite reflectance VRo = 0.53–0.73%, (2) palynomorph 3–4 colour index, and (3) Tmax = 443–447°C, which indicate oil window maturity. Some of the TOC results (1.6–2.9 wt.%) indicate that the Anthracosia Shales are good and very good petroleum source rocks, though the thickness of this interval is low (4–5 m). Shales with TOC values <0.5 wt.% prevail, and may be classifed as poor source rocks.
Źródło:: Geological Quarterly; 2022, 66, 4; art. 66, no. 36
1641-7291
Pojawia się w:: Geological Quarterly
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Przegląd najważniejszych prac dotyczących próby ustalenia daty spadku meteorytów oraz wieku kraterów Morasko
Review of most important papers regarding attempts to determine the date of Morasko meteorite fall and age of the craters
Autorzy:: Walesiak, Tomasz
Powiązania:: https://bibliotekanauki.pl/articles/1830331.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Meteorytowe
Tematy:: age
craters
dating
fall
luminescence
meteorite Morasko
palynological
radiocarbon
Opis:: One of criteria suggesting impact origin may be recognition of extraterrestrial matter inside or around suspected cavities. In case of Morasko some dating results throw doubt on link between craters and meteorites. Conclusion of some past research papers was that cavities were formed about 5 ka BP (e.g. palynological investigation, luminescence dating), while more or less facts testify fall in the Middle Ages (e.g. “young” charcoal pieces in crust of meteorites or shrapnel stuck in the roots of old tree). In this paper we perform comprehensive analysis of each result and check if there exists alternative explanation. During past palynological investigation, there were examined two craters. It was concluded that beginning of accumulation of sediments in smaller cavity started 5500–5000 BP. However, pollen spectrum for largest basin was different suggesting younger age. The problem is that according to bathymetric maps, samples could be collected from inner uplift (similar feature was observed inside Porzadzie and Jaszczulty, unconfirmed impact structures yet). If we compare profiles from craters with recent research (palynological study supported by radiocarbon dating) on sediments in Lake Strzeszynskie (6 km SW from Morasko) pollen spectrum seems to be similar more to results dated to <1000 BP. Especially percentage of non-arboreal pollen for both examined Morasko craters is much higher (5 times greater than it was for layer dated to 5 ka BP in Lake Strzeszynskie). Possibility of short disturbance (related to impact) cannot be excluded, but in such case any time of event should be taken into account. For small lakes (like those filling the craters) also local conditions could play important role. Analysis of luminescence dating may also discuss past conclusions. OSL method applied for samples taken from the thin layer of sand in the bottom of largest structure (under 3,9 m of organic sediments filling the crater) suggested age 5–10 ka BP for 24 aliquots. Same number of samples (24) revealed age 0–5 ka BP (13 samples with age <3 ka BP including several younger than 1 ka BP). Older dates can be explained by partial or even no zeroing, but last contact with light (zeroing signal) of sand grains (excavated from depth of almost 4 meters under organic matter) seems that might occur only during (or shortly after) the impact. It is difficult to find convincing arguments, which can undermine initial radiocarbon dating giving age <1 ka BP for 7 of 9 samples taken from the bottom layer of organic sediments from three Morasko craters. Same issue may exist with small charcoal pieces with age <2 ka BP (and several dated to ~700 BP) discovered deep in sinter-weathering crust of meteorites. Study of charcoal particles excluded their origin during post-sedimentary processes (like forest fire) unless meteorite fragments were laying directly on the surface for period between impact and wildfire (surviving whole time inhospitable climate conditions). There are two other possible explanations of charcoals. Either they were present at location as a result of past forest fire or they were produced during impact. However, similar small charcoal pieces were discovered around many craters (Kaali, Ilumetsa, Campo del Cielo, Whitecourt) and they were successfully used to estimate maximum age of those structures. During second stage of 14C dating the age obtained from three samples (taken few centimeters above the mineral bottom) was estimated ~5 ka BP. Looking for answer why these results are so different from previous once there may be mentioned at least two options. Lake sediments is difficult matter for radiocarbon dating and results may be hundreds or even thousands years older than real age. Second explanation may be that older matter (remnant of trees, paleosoil etc.), distributed around craters during impact, could be displaced by wind, rain, erosion and trapped in the bottom of cavities. The argument, which may be also against hypothesis of impact ~5 ka BP is meteorite shrapnel stuck in the roots of old tree. Result of expertise showed, that there exists mechanical damage in the wood and the only possible explanation is that meteorite has hit living tree. Maximum age, that this type of wood may preserve (inside building) is 1,8 ka while in natural environment not more than 500 years. Anyway some further examinations should be performed. The age obtained during AMS 14C dating of 2 samples from thin layer of paleosoil, discovered under overturned flap around largest Morasko crater, was ~5 ka BP. Observation that preserved layer of paleosoil is approximately 3 times thinner than thickness of modern soil may lead to conclusion that during impact top (younger) layer of organic sediments was removed and only older part “survived” in few locations close to the rim. The conclusion of the research was that dating provides maximum age of the impact (which does not exclude much younger impact <1 ka BP) so could be considered as right explanation of past discrepancies.
Źródło:: Acta Societatis Metheoriticae Polonorum; 2021, 12; 129-148
2080-5497
Pojawia się w:: Acta Societatis Metheoriticae Polonorum
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Vegetation response to environmental changes based on palynological research on the Middle Miocene lignite at the Jóźwin IIB open-cast mine (Konin region, central Poland)
Autorzy:: Słodkowska, Barbara
Widera, Marek
Powiązania:: https://bibliotekanauki.pl/articles/1835984.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Geologiczne
Tematy:: palynology
lignite seam
palaeofloristic reconstruction
climatic changes
Neogene of Poland
Opis:: Palynological research was performed on the first Mid-Polish lignite seam (MPLS-1) at the Jóźwin IIB open-cast mine. The extremely rich pollen assemblages allowed investigation of the development of phytogenic sedimentation and the succession of plant communities. The vegetation cover, representing peat accumulation and adjacent areas, was reconstructed in the homogeneous lignite seam. Despite the lack of clear macroscopic differences in the lignite lithology and a similar floristic composition, a similar succession of plant communities was observed in three repetitions in the profile. The plant communities described were grouped into five cycles. Changes in the succession resulted mainly from oscillations of the groundwater level. On the basis of the vegetation composition, the climatic conditions predominant during the peat-forming sedimentation were reconstructed. Climate changes are most precisely recorded in the mixed mesophilous forest community. Its floristic composition shows that the climate was warm-temperate and humid at that time. The lower part of the profile contains more taxa with high thermal requirements: Araliaceae, Mastixiaceae, Anacardiaceae, Hammamelidaceae, Cornaceae, Symplocaceae, Ilex, Itea, Engelhardia, etc. It is related to the Middle Miocene Climatic Optimum (MMCO). In the upper part of the profile, the vegetation composition reflects the beginning of a cooling trend. This is indicated by the reduced number of highly thermophilous taxa and the decreased taxonomic diversity of forest communities. The changing climatic and environmental conditions interrupted peat-bog sedimentation and caused termination of the development of thicker lignite seams.
Źródło:: Annales Societatis Geologorum Poloniae; 2021, 91, 2; 149-166
0208-9068
Pojawia się w:: Annales Societatis Geologorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Unique finds in palynological spectra: acetolyze resistant vegetative forms of freshwater dinoflagellate based on the Lake Młynek record from northeastern Poland
Autorzy:: Bińka, Krzysztof
Welc, Fabian
Nitychoruk, Jerzy
Sieradz, Dominika
Lewczuk, Antoni
Powiązania:: https://bibliotekanauki.pl/articles/2025037.pdf
Data publikacji:: 2020
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: freshwater dinoflagellate
microfossil
human impact
Holocene
Opis:: The freshwater dinoflagellate represent microfossils which are very rarely noted in lake deposits. In Late Holocene sediments of the Lake Młynek, the Iława Lakeland, northern Poland, we identified intense blooms of algae of the genus Palatinus. They occurred primarily in the period of strong human impact during expansion of the Monastic State of the Teutonic Order. The most amazing thing is that samples in which conventional palynological maceration has been used dinoflagellate are represented by armored vegetative forms instead of cysts. During this laboratory processes, especially acetolysis, cellulosic thecae of armored forms should be destructed. This is the second known example of acetolysis resistant thecae of modern dinoflagellate, built by substance other than cellulose. Palatinus blooms were associated probably with the hydrotechnical works made by Teutonic Knights in the catchment, which caused supply and discharge of micronutrients e.g. selenium in the basin.
Źródło:: Studia Quaternaria; 2020, 37; 59-67
1641-5558
2300-0384
Pojawia się w:: Studia Quaternaria
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Palynological Study of Recent Sediments from an Urban Creek in Lagos State, Southwestern Nigeria
Autorzy:: Ajikah, Linus
Adekanmbi, Olusola
Durugbo, Ernest
Ogundipe, Oluwatoyin
Powiązania:: https://bibliotekanauki.pl/articles/1076688.pdf
Data publikacji:: 2019
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Ijora Creek
Paleovegetation
Palynomorphs
Southwestern Nigeria
Opis:: A palynological study of recent sediments from Ijora Creek, an Urban Creek in Lagos, Southwestern Nigeria was carried out to provide inferences on paleovegetation and climate change over time in the study area. Two stations 90m apart were sampled at low tide in a boat using a Russian peat corer. Samples were taken at 10cm intervals and eighteen sediments samples were collected and processed using standard palynological methods. Two hundred and sixty six (266) and two hundred and thirty three (231) palynomorphs were recovered from stations 1 and 2 respectively. Palynomorphs recovered and identified to species level include Alchornea cordifolia, Hymenocardia acida, Elaeis guineensis, Spathodea companulata, Triumfetta pentandra, Uapaca acuminata, Tridax procumbens, Berlinia sp., Eugenia sp., Celtis sp., Albizia sp., Cyperus sp. together with species of Poaceae, Asteraceae, Arecaceae, Eurphorbiaceae, Acanthaceae, with common microforaminiferal test linings and fungal spores. Poaceae and fungal spores dominated the assemblage while station 1 recorded the highest pollen and spore abundance. The presence of microforaminiferal wall linings, fungal spores and the freshwater swamp species Alchornea cordifolia and the oil palm pollen Elaeis guineensis suggests a dominantly wet period in which, there was a marked marine transgression into the creek, interrupted occasionally by dry climate as inferred from the abundant records of Poaceae and Asteraceae. The presence of secondary forest species especially Elaeis guineensis suggests the impact of human activities on the paleovegetation.
Źródło:: World News of Natural Sciences; 2019, 25; 168-187
2543-5426
Pojawia się w:: World News of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Pollen morphology in the tribe Nigelleae (Ranunculaceae): a worldwide palynological investigation into the species
Autorzy:: Isik, S.
Donmez, E.O.
Aydin, Z.U.
Donmez, A.A.
Powiązania:: https://bibliotekanauki.pl/articles/2117898.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:: Garidella
Komaroffia
multivariate analysis
Nigella
Ranunculaceae
pollen morphology
Opis:: The pollen morphology of many collections of taxa of the tribe Nigelleae from the family Ranunculaceae which occur worldwide is presented in this study. A total of 88 specimens from 21 taxa, some of which were recently proposed, belonging to the genera Komaroffia, Garidella, and Nigella of Nigelleae were examined using light microscopy (LM) and scanning electron microscopy (SEM). In the tribe, the pollen type is mostly trizonocolpate, but in many taxa and specimens, both trizonocolpate and non-trizonocolpate types occur together. The pollen grains are small to medium (25–53.75 μm × 20–55 μm) in size and oblate to prolate in shape. The exine pattern at the mesocolpium in all the taxa investigated is similar: micro-echinate in LM and micro-echinate-punctate in SEM. The colpus membrane in Komaroffia and Nigella is micro-echinate in both LM and SEM. In Garidella, it is micro-echinate in LM but echinate (spinulose) in SEM. In this study, multivariate analyses, principal component analysis (PCA), and unweighted pair group method with arithmetic mean (UPGMA), were used to evaluate relationships between the genera and species within the tribe with respect to pollen morphology. PCA results show three main groups in the tribe: Garidella, Komaroffia, and Nigella. Moreover, the UPGMA tree also chiefly supports generic segregation into the smaller genera. An overall synthesis of the pollen characteristics of the three genera is provided and discussed.
Źródło:: Acta Biologica Cracoviensia. Series Botanica; 2019, 61, 1; 93-102
0001-5296
Pojawia się w:: Acta Biologica Cracoviensia. Series Botanica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Reconstruction of atmospheric lead and heavy metal pollution in the Otrębowskie Brzegi peatland (S Poland)
Autorzy:: Pawełczyk, Fatima
Bloom, Karolina
Jucha, Witold
Michczyński, Adam
Okupny, Daniel
Sikorski, Jarosław
Tomkowiak, Julita
Zając, Ewelina
Fagel, Nathalie
Powiązania:: https://bibliotekanauki.pl/articles/2058587.pdf
Data publikacji:: 2019
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: Pb isotopes
pollution
elemental record
human activity
14C dating
210Pb dating
palynological analysis
Opis:: We reconstruct palaeoenvironmental changes since the Late Holocene in the Orava-Nowy Targ Basin, with an emphasis on anthropogenic influence (Walker et al., 2018). This reconstruction employs multiproxy analyses of the Otrębowskie Brzegi poor fen. We combined radiocarbon and 210Pb dating with elemental geochemistry, stable lead isotopes, and palaeobotanical analyses. The core we investigated covers a period from 4200 ± 100 BC to the present, with a peat accumulation rate varying between 0.001 and 0.243 cm y-1. Heavy metal concentrations, Pb isotopic ratios, and a palynological analysis revealed a significant impact of human activities in the past. The highest concentration and accumulation rate of Pb, were found around 1950 AD. The 206Pb/207Pb quotient ranged between 1.168 and 1.223, with average value around 1.198. Most of the interpretation was based on Pb and its stable isotopes; however, other elements were also important indicators of natural and anthropogenic environmental changes. Our results revealed similarities between the geochemical composition of the peatland studied and other peatlands from the Orava-Nowy Targ Basin.
Źródło:: Geological Quarterly; 2019, 63, 3; 568--585
1641-7291
Pojawia się w:: Geological Quarterly
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Palynological Study of the Campano-Maastrichtian Nkporo Group of Anambra Basin, Southeastern, Nigeria
Autorzy:: Chiadikobi, K. C.
Chiaghanam, O. I.
Onyemesili, O. C.
Omoboriowo, A. O.
Powiązania:: https://bibliotekanauki.pl/articles/1109375.pdf
Data publikacji:: 2018
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Campano-Maastrichtian
Nkporo Formation
Palynology
Palynomorphs and Anambra Basin
Opis:: Palynological assemblages were used in the determination of the age and paleoenvironment of the Nkporo and Enugu Formations of the Anambra Basin, Southeastern Nigeria. Palynological analysis carried out in over twenty-five samples (25) yielded spores, pollens and marine species. The main diagnostic species of spores and pollen recovered includes; Foveotriletes margaritae, Distaverrusporites simplex, Cingulatisporites ornatus, Echitriporites trianguliformis, Longapertites marginatus, Proteacidites segali, Monocolpites marginatus, Constructipollenites ineffectus, Buttinia andreevi, and Retidiporites which were dated to Late Campanian to Earliest Maastrichtian. Also, other sporomorphs includes; Longapertites marginatus (overwhelming abundance), Longapertites microfoveolatus, Longapertites vaneedenburgi, Spinizonocolpites baculatus, Foveotriletes margaritae, Distaverrusporites simplex, Cingulatisporites ornatus, Matonisporites equiexinus, Azolla marsulae, Mauritidiites crassibaculatus, Constructipollenites ineffectus, Echitriporites trianguliformis, Foveotriletes margaritae, and Leiotriletes minor were assigned to Early Maastrichtian. From the palynological analysis, the age-diagnostic index palynomorphs reveal that the Nkporo Group is within Late Campanian to Early Maastrichtian and the depositional environment is mostly marginal marine to marine.
Źródło:: World News of Natural Sciences; 2018, 20; 31-53
2543-5426
Pojawia się w:: World News of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Badania palinologiczne w regionie łódzkim
Palynological studies in the Łódź region
Autorzy:: Balwierz, Zofia
Powiązania:: https://bibliotekanauki.pl/articles/578382.pdf
Data publikacji:: 2017
Wydawca:: Łódzkie Towarzystwo Naukowe
Tematy:: historia badań palinologicznych
osady biogeniczne młodszego czwartorzędu
ośrodek łódzki
history of pollen analysia
biogenic sediments of younger Quaternary
Łódź scientific centre
Opis:: Rozwijające się w XX wieku nowe metody badawcze pomocne w badaniach osadów i rekonstrukcjach paleogeograficznych stwarzały zapotrzebowanie na specjalistów w tych dziedzinach. Jedną z takich metod jest metoda analizy pyłkowej, której 100-lecie powstania obchodzono w 2016 roku. Zastosowanie jej w badaniach osadów czwartorzędowych zadecydowało o potrzebie zatrudnienia w Instytucie Geografii Uniwersytetu Łódzkiego osoby zajmującej się analizą pyłkową. Artykuł przybliża historię łódzkiej palinologii, która po dwóch krótkich epizodach, trwała nieprzerwanie od roku 1972 do roku 2006 oraz przedstawia w dużym skrócie problemy związane z organizowaniem pracowni i prezentuje najważniejsze osiągnięcia naukowe jej pracowników.
The new research methods that developed in the 20th century, useful for the studies of sediments and palaeogeographical reconstructions, have caused the need for specialists in these fields to arise. One of such methods is pollen analysis, whose centennial anniversary was celebrated in 2016. Its use in the studies of the sediments of the Quaternary was the decisive factor in employing a pollen analysis specialist by the Institute of Geography, University of Łódź. The article elucidates the history of palynology in Łódź, which, after two short episodes, lasted continuously, between the years 1972–2006 and to presents, very briefly, the problems connected with organizing the laboratory as well as to highlights the most important accomplishments of its employees.
Źródło:: Acta Geographica Lodziensia; 2017, 106; 129-138
0065-1249
Pojawia się w:: Acta Geographica Lodziensia
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: The Badenian Salinity Crisis in the palynological record : vegetation during the evaporative event (Carpathian Foredeep, southern Poland)
Autorzy:: Durska, E.
Powiązania:: https://bibliotekanauki.pl/articles/191337.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Geologiczne
Tematy:: Miocene
Paratethys
pollen
plant communities
evaporation
fossilized cytoplasm
Opis:: The Badenian Salinity Crisis took place at the early/late Badenian boundary and resulted in massive chemical sedimentation in the central Paratethys. The evaporating basin of the northern Carpathian Foredeep left behind gypsum and halite deposits tens of meters thick. As a very good medium for preservation, these evaporites are a fine source of diversified terrestrial palynomorphs. Plant communities reconstructed on the basis of both palynological analysis of sediments from the Bochnia and Wieliczka salt mines, as well as previously published studies from different localities within the evaporite basin, reveal the presence of wetland and mesic environments along the coasts of the northern part of the central Paratethys during the evaporative event. Among the most important taxa are Engelhardia, Ericaceae, Fagus, Liquidambar, Quercus, Taxodium/Glyptostrobus, Tricolporopollenites pseudocingulum, and Ulmus. The most characteristic feature of the palynofloras studied is the large amount (up to even 50%) of Ericaceae pollen in the spectra. Taxa representing a warm-temperate climate predominate in the palynofloras examined; however, representatives of a tropical/subtropical climate (i.a. Mastixiaceae) are also present. The presence of plant communities associated with wetland areas shows that the climate remained humid.
Źródło:: Annales Societatis Geologorum Poloniae; 2017, 87, 3; 213-228
0208-9068
Pojawia się w:: Annales Societatis Geologorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Foraminiferal and palynological organic matter records of the Upper Badenian (Middle Miocene) deposits at Anadoly (marginal part of the Ukrainian Carpathian Foredeep Basin)
Autorzy:: Gedl, P.
Peryt, D.
Peryt, T. M.
Powiązania:: https://bibliotekanauki.pl/articles/2059874.pdf
Data publikacji:: 2016
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: Paratethys
Carpathian Foredeep
Upper Badenian
foraminifers
dinoflagellate cysts
palaeoenvironment
Opis:: The Badenian section of Anadoly near Kamyanets Podilskyy (Ukrainian Carpathian Foredeep Basin) consists of the Tyras Fm. (gypsum and Ratyn Limestone) and the Ternopil Mb. of the Kosiv Fm. The latter are 5.3 m thick and are composed of dark grey mudstones with limestone intercalations. This study indicates the occurrence of over 54 species of benthic foraminifers and 10 species of planktonics. Benthic foraminifera are represented mainly by calcareous forms; agglutinated tests are very rare. Planktonic foraminifera appear in the upper part of the succession studied. Five benthic foraminiferal assemblages are recognized: A (Elphidium/Lobatula/Astrononion) B (Hauerinidae), C (Cibicidoides/Lobatula), D (Porosononion) and E (Uvigerina/Bulimina). The foraminiferal record indicates deposition in a shallow subtidal environment (20 m depth) of normal marine salinity and temperate waters followed by gradual deepening of the basin to >50 m. Analysis of foraminiferal assemblages indicates that bottom waters were highly oxygenated during deposition of the lower and middle parts of the Anadoly sequence. During deposition of the upper part of the sequence the oxygenation of bottom water gradually decreased, as expressed by a large decrease in the proportion of oxic species and an increase in dysoxic ones. The same set of samples yielded low amounts of palynological organic matter represented by dominant black opaque phytoclasts; bisaccate pollen grains and dinoflagellate cysts are rare. Taxonomically impoverished assemblages of the latter consist of dominant Polysphaeridium and Cleistosphaeridium placacanthum associated with Lingulodinium machaerophorum and a few other taxa. The taxonomically richest assemblage was found in the topmost sample. These changes were interpreted as indicative for increased salinity in the surface water layer, with its maximum in the middle part of the section; the assemblage from the topmost part is characteristic for normal marine salinity.
Źródło:: Geological Quarterly; 2016, 60, 2; 517--536
1641-7291
Pojawia się w:: Geological Quarterly
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Zmiany klimatu w plejstocenie w świetle danych palinologicznych
Pleistocene climate changes based on palynological data
Autorzy:: Granoszewski, W.
Winter, H.
Powiązania:: https://bibliotekanauki.pl/articles/2075572.pdf
Data publikacji:: 2016
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: plejstocen
morskie stadium izotopowe
interglacjał
interstadiał
glacjał
analiza pyłkowa
Pleistocene
Marine Isotope Stage
interglacial
interstadial
glacial
pollen analysis
Opis:: The paper presents general climate changes during the last 2.6 Ma in the Northern Hemisphere. Plant formations of warm intervals (interglacials and interstadials) are briefly described. Disappearance of some more climate-sensitive tree taxa as well as climate changes during the Pleistocene in Northern Europe are also portrayed.
Źródło:: Przegląd Geologiczny; 2016, 64, 1; 43--48
0033-2151
Pojawia się w:: Przegląd Geologiczny
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: A record of climatic changes in the Triassic palynological spectra from Poland
Autorzy:: Fijałkowska-Mader, A.
Powiązania:: https://bibliotekanauki.pl/articles/2059985.pdf
Data publikacji:: 2015
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: miospores
climate
Triassic
palyno-palaeoclimatic model
PPC
Opis:: Based on quantitative and qualitative analyses of the Triassic miospores assemblages from different regions of Poland climatic changes have been documented. Analyzed material came from the published and archival works of Orłowska-Zwolińska and author and comprised ten palynological zones distinguished in the Triassic of Poland. Two different palynological methods were applied in this study – PPC model and SEG model – to obtain palaeoclimatic and palaeoenvironmetal data. Xerophytic elements (spores and pollen grains of xerophytic plants), reflecting mainly dry climate conditions, dominated in the palynomorph spectra of the Triassic deposits from Poland. Significant numbers of hygrophytic elements indicating temporary more humid phases occurred in the late Olenekian, Ladinian, the middle Carnian, late Norian and the Rhaetian.
Źródło:: Geological Quarterly; 2015, 59, 4; 615--653
1641-7291
Pojawia się w:: Geological Quarterly
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Environmental Sciences and Polish History. Quantitative Analysis of Palynological Data
Autorzy:: Izdebski, Adam
Koloch, Grzegorz
Słoczyński, Tymon
Tycner, Marta
Powiązania:: https://bibliotekanauki.pl/articles/702035.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Źródło:: Historyka studia metodologiczne; 2015, 45
0073-277X
Pojawia się w:: Historyka studia metodologiczne
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Mycological and palynological studies of early medieval cultural layers from strongholds in Pszczew and Santok (western Poland)
Autorzy:: Mazurkiewicz-Zapalowicz, K.
Okuniewska-Nowaczyk, I.
Powiązania:: https://bibliotekanauki.pl/articles/67157.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Botaniczne
Opis:: Cultural layers from early medieval strongholds in Pszczew and Santok have been examined for the presence of pollen grains and spores as well as residues of fungi. The presence of the following remains has been recorded: fossil hyphopodia of Gaeumannomyces, teliospores of Puccinia, spores of Bipolaris, Thecaphora and Tilletia, teliospores of the genus Urocystis, Ustilago and Uromyces, ascocarps (perithecium) of the Ascomycota or the pycnidium of Sphaeropsidales. A greater diversity and abundance of fungi spores sensu lato was recorded in Santok, as compared to Pszczew. Both early medieval sites recorded a significant proportion of cereal pollen, including Secale cereale. It remains an undisputed fact that the grains and other plants collected in both strongholds were strongly infected with fungi. The analysis of the cultural layers for the presence of fungi remains provides significant data on the presence of certain species of plants and their growth conditions in natural environments and in agriculture.
Źródło:: Acta Mycologica; 2015, 50, 1
0001-625X
2353-074X
Pojawia się w:: Acta Mycologica
Dostawca treści:: Biblioteka Nauki

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