Temat: paleobotanika - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Problem granicy pliocen/plejstocen w słodkowodnych osadach Mizernej na Podhalu
Problem of the Pliocene/Pleistocene boundary in fresh-water deposits at Mizerna, West Carpathians
Autorzy:: Zastawniak-Birkenmajer, E.
Birkenmajer, K.
Powiązania:: https://bibliotekanauki.pl/articles/2074945.pdf
Data publikacji:: 2012
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: paleobotanika
Mizerna
Podhale
pliocen
pleistocen
palaeobotanic site
West Carpathians
Pliocene
Early Pleistocene
Opis:: TheMizerna site (Polish Western Carpathians) is one of the most important Pliocene palaeobotanic sites in Central Europe. Its fresh-water deposits, laid down in a buried river valley, were studied in detail more than half a century ago in natural exposures and shallow boreholes, prior to partial drowning of the area by an artificial lake. The deposits yielded a very rich macrofossil plant collection elaborated in detail by Szafer (1954) who claimed that they represented a continuous succession of the Pliocene through Early Pleistocene plant communities. First palynological examination of the Mizerna deposits (by Oszast) was made more than half a century ago. Re-evaluation of stratigraphic and palaeoclimatic significance of macrofossil plant remains, along with a reassessment of palaeoenvironmental and sedimentary conditions during formation of the Mizerna fresh-water deposits, is in progress. This may help elucidate the problem whether the Mizerna sediments represent both the Pliocene and Early Pleistocene or, solely, the Pliocene successions.
Źródło:: Przegląd Geologiczny; 2012, 60, 5; 276-283
0033-2151
Pojawia się w:: Przegląd Geologiczny
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Wiek i historia rozwoju torfowiska w Pakosławicach (południowo-zachodnia Opolszczyzna) na podstawie badań paleobotanicznych
Age and evolution of mire in Pakosławice (south-western Opole Province) in the light of palaeobotanical research
Autorzy:: Maj, J.
Gałka, M.
Powiązania:: https://bibliotekanauki.pl/articles/2074924.pdf
Data publikacji:: 2012
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: paleobotanika
analiza pyłkowa
skamieniałości roślinne
późny vistulian
holocen
nizina Grodków
palaeobotany
pollen analysis
plant macrofossils
Late Vistulian
Holocene
Grodków Plain
Opis:: The result of palaeobotanical studies of biogenic sediments from Pakosławice made it possible to establish the age of limnic and peat sediments and reconstruct past plant communities and development phases of the sedimentary/sedentary basin. The investigated mire originated from overgrowth of a shallow lake. The lake formed probably as a result of thermokarst processes (permafrost thawing). Accumulation of gyttja started in the Alleröd to continue in the Younger Dryas and early Holocene (Preboreal and Boreal). The sedentation of peat deposits probably took place in the middle and late Holocene.
Źródło:: Przegląd Geologiczny; 2012, 60, 2; 110-116
0033-2151
Pojawia się w:: Przegląd Geologiczny
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Przegląd skamieniałości kręgowców i flory z terenów dzisiejszej Polski zgromadzonych w Muzeum Historii Naturalnej w Wiedniu
Revision of fossils from the current territory of Poland housed in the Natural History Museum in Vienna
Autorzy:: Pawlak, Wojciech
Czepiński, Łuklasz
Majchrzyk, Aleksander
Duk, Katarzyna
Powiązania:: https://bibliotekanauki.pl/articles/2075890.pdf
Data publikacji:: 2019
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: historia paleontologii
Górny Śląsk
Małopolska
wapień muszlowy
paleobotanika
plejstocen
warstwy menilitowe
history of paleontology
Upper Silesia
Little Poland
Muschelkalk
paleobotany
Pleistocene
Menilite Beds
Opis:: Current territory of Poland was an exploration area for paleontologists from other European countries throughout the almost entire nineteenth century. A considerable part of findings were stored in institutions located beyond current borders of Poland. We have examined, documented and identified above 350 fossils housed in the Natural History Museum in Vienna (Naturhistorisches Museum Wien). The collection includes paleobotanical and paleozoological specimens from the Little Poland and the Upper Silesia. Some of these specimens are a unique material from the localities which are no longer available.
Źródło:: Przegląd Geologiczny; 2019, 67, 1; 48--55
0033-2151
Pojawia się w:: Przegląd Geologiczny
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Uwęglony i zsylifikowany pień kordaita w warstwach libiąskich (westfal D – moskow) koło Chrzanowa, Górnośląskie Zagłębie Węglowe
Carbonified and silicified cordaitalean wood in the Libiąż Beds (Westphalian D – Moscovian) near Chrzanów, Upper Silesian Coal Basin, Poland
Autorzy:: Lipiarski, I.
Pawlikowski, M.
Powiązania:: https://bibliotekanauki.pl/articles/2075097.pdf
Data publikacji:: 2014
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: silicified and carbonificated wood
palaeobotany
petrography
Dadoxylon
Late Pennsylvanian
Upper Silesian Coal Basin
Polska
zsilikonowane i uwęglone drewno
paleobotanika
petrografia
Górnośląskie Zagłębie Węglowe
Polska
Opis:: The sample in the formof the drill core 9 cm long and 6 cm in diameter reveals exclusively secondary wood. No growth rings have been observed. Tracheids have the width 20–50 μm (mean 25 μm) in the tangential section. Pitting on the radial walls is mainly uniseriate, partly biseriate or triseriate. The uniseriate pits are circular or oval. The biseriate and triseriate pits are polygonal (often hexagonal), distributed adjacent to each other, and densely cover the whole width of the walls. The diameter of the pits is 12±2 μm. The poruses are circular. Medullary rays are mostly uniseriate, composed of 1–46 layers; mostly between a fifteen or so and 30 layers. As the investigations are at the preliminary stage, the author prefers to use only the generic term to name the wood, namely Dadoxylon sp., without giving it a species designation. Mineralogical investigation of silicified wood was conducted using polarizing light microscope. Observations showed various the optical orientation of quartz crystals filling up cells of wood. It is observed as differentiated disapperance of polarized light. This phenomenon documents that beginning of growth of quartz crystals (center of crystallization) was located at various places of cell walls. This situation is the result of beginning of destruction of organic compounds of wall structure of cells at various places. Additionally investigation documents various intensity of silification of cordaitalean structure. Because of this the process of silification is different at various parts of tissues and one can observe parts fully petrified and completely without mineralization. The structure of wood tissues is at same places damaged by crystallizing quartz. This phenomenon is observed at the tissues where silification was continued and size of newly formed quartz crystals is overgrowth size wood cells of wood. Mentioned zones of cell destruction are especially well seen at placed where silification developed parallel to orientation of biological wood structures. In summary one can say that mentioned processes were the reason of only partial petrification (silification) of examined cordaitalean second wood.
Źródło:: Przegląd Geologiczny; 2014, 62, 1; 22--27
0033-2151
Pojawia się w:: Przegląd Geologiczny
Dostawca treści:: Biblioteka Nauki

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