Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

Wyszukujesz frazę "Pennsylvanian" wg kryterium: Temat


Wyświetlanie 1-10 z 10
Tytuł:
Warunki temperaturowe w czasie diagenezy piaskowców pensylwanu w rejonie Morza Bałtyckiego
Thermal conditions during diagenesis of Pennsylvanian sandstones in the Baltic Sea area
Autorzy:
Kozłowska, Aleksandra
Powiązania:
https://bibliotekanauki.pl/articles/2075972.pdf
Data publikacji:
2019
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
temperatura
minerały autogeniczne
diageneza
piaskowiec
Pensylwania
Bałtyk
temperature
autigenic minerals
diagenesis
sandstone
Pennsylvanian
Baltic Sea
Opis:
The purpose of this study is to reconstruct the temperature conditions in the sediment during the diagenesis history of Pennsylvanian sandstones drilled in three deep boreholes in the Baltic Sea. These sandstones are represented by quartz and sublithic arenites and wackes, cemented by matrix and autigenic minerals. Among the autigenic minerals: quartz, clay minerals (kaolinite, dickite, illite) and carbonates (calcite, dolomite, ankerite) are the temperature indicators. The presence of dickite in the sediments indicates a temperature of about 120°C. Quartz and carbonate crystallization temperatures, based on the analysis of fluid inclusions, are estimated to be in the range of 70-180°C. The K/Ar age of the fibrous illite thatforms at the final stage of diagenesis (above 100° C), was determined at 262 ±2 to 247 ±4 My, i.e. from the Middle Permian to the Early Triassic. It determines a length of the post-deposition period, when the deposits were permeable for pore fluids.
Źródło:
Przegląd Geologiczny; 2019, 67; 167--168
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
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
Artykuł
Tytuł:
The relationship of brine chemistry of the Pennsylvanian Paradox Evaporite Basin (southwestern USA) to secular variation in seawater chemistry
Autorzy:
Petrychenko, O. Y.
Williams-Stroud, S.
Peryt, T. M.
Powiązania:
https://bibliotekanauki.pl/articles/2058982.pdf
Data publikacji:
2012
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Pennsylvanian
Paradox Basin
evaporites
fluid inclusions
seawater chemistry
Opis:
To establish the brine chemistry associated with the evaporites in the Pennsylvanian Paradox Basin of southeastern Utah and southwestern Colorado (USA), the composition of primary fluid inclusions was determined for sedimentary halite from two drill cores, one near the central part of the basin (Shafer Dome No. 1) and one from a more marginal location of the basin (Gibson Dome No. 1). Chemical analysis of halite fluid inclusions was done on six samples from three different evaporite cycles of the Paradox Formation; cycle 10 in the Shafer Dome core and cycles 6 and 18 from the Gibson Dome core. The inclusions that range in size from 2 to 80 microns across, were analyzed using the Petrychenko method. Large inclusions (40 to 80 microns across) that were used for the chemical analyses contain one fluid phase with a carnallite or sylvite daughter crystal. Also reported in this study are fluid inclusion homogenization temperatures for sylvite or carnallite from primary halite crystals in the Gibson Dome core and in Shafer Dome. The relationship between K+ and Mg2+ in chloride rich inclusions corresponds to their proportion in MgSO4-depleted marine waters concentrated to the stage of carnallite deposition. A correlative relationship was observed between K+2+4-rich to MgSO4-poor compositions that have been proposed by other workers. A transition from MgSO4-rich to MgSO4-poor seawater composition may have occurred between Pennsylvanian and Permian times. This paper presents a possible alternate explanation to those already proposed in the literature, that the Paradox Formation mineralogy resulted from an intermediate seawater composition that records the global transition from MgSO4-rich to MgSO4-poor seawater.
Źródło:
Geological Quarterly; 2012, 56, 1; 25--40
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sedymentacja osadów węglonośnej sukcesji Górnośląskiego Zagłębia Węglowego : kierunki badań i aktualny stan wiedzy
Sedimentation of the coal-bearing succession in the Upper Silesia Coal Basin: research trends and the current state of knowledge
Autorzy:
Gradziński, R.
Doktor, M.
Kędzior, A.
Powiązania:
https://bibliotekanauki.pl/articles/2074364.pdf
Data publikacji:
2005
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
sedymentologia
węglonośna sukcesja
Górnośląskie Zagłębie Węglowe
sedimentation
coal-bearing succession
Pennsylvanian
Upper Silesian Coal Basin
Polska
Opis:
The coal-bearing succession in the Upper Silesia Coal Basin consists of molasse deposits filling a flexural foredeep basin. Analysis of lithofacies in cores from deep boreholes revealed the presence of depositional environments typical of alluvial plains and coastal (in a broad sense) environments. Accumulation compensated regional subsidence, so that general depositional surface remained nearly flat. The higher part of the csuccession was laid in fluvial systems, while the lower part mostly in fluvial systems and subordinately in complex coastal systems. Reconstruction of depositional architecture has shown lateral variation in thickness and extent of individual lithosomes, and also pointed to the role of peat-compaction control in shaping their 3D geometry. Sedimentation was controlled by both autigenic and allogenic factors.
Źródło:
Przegląd Geologiczny; 2005, 53, 9; 734-741
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Quantitative relationship of spore and plant assemblages from the Radnice Basin, Middle Pennsylvanian of the Czech Republic : preliminary results
Autorzy:
Bek, Jiří
Opluštil, Stanislav
Pšenička, Josef
Votočková-Frojdová, Jana
Powiązania:
https://bibliotekanauki.pl/articles/2058692.pdf
Data publikacji:
2021
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Pennsylvanian
spores
fossil plants
Opis:
Dispersed miospore and pollen assemblages are described from the Radnice Basin, Middle Pennsylvanian, Czech Republic. Conversion factors (R-values) were produced by comparing the palynological data with quantified macrofloral data, to relate the percentages of spore/pollen taxa to those of the major plant groups that produced them. Among arborescent lycopsids, the miospore and macroplant counts are more or less equal. In other lycopsids miospores are strongly over-represented, as their macroplant remains were relatively fewer than would be suggested by the proportion of their spores in miospore spectra. Sphenophyll and calamitid macroplants were also relatively fewer than are their spores as a proportion of palynological spectra. By contrast, macroplants of ferns and cordaites are relatively more numerous than are their miospores and pollen in palynological spectra.
Źródło:
Geological Quarterly; 2021, 65, 4; 205--215
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geometric morphometric analysis and taxonomic revision of the Gzhelian (Late Pennsylvanian) conodont Idiognathodus simulator from North America
Autorzy:
HOGANCAMP, NICHOLAS J.
BARRICK, JAMES E.
STRAUSS, RICHARD E.
Powiązania:
https://bibliotekanauki.pl/articles/945657.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
conodonta
idiognathodus
morphometrics
pennsylvanian
gzhelian
north america
midcontinent
Opis:
A new morphometric approach was developed to study morphological variation within P1 elements commonly referred to as Idiognathodus simulator, which was selected to be the biostratigraphic marker for the base of the global Gzhelian Stage (Carboniferous). This new approach combines landmark-based geometric morphometrics with eigen analyses to analyze shape variation within P1 elements of the I. simulator group, and could be used to analyze shape variation in other morphologically similar conodont groups. Specimens analyzed were obtained from three sections of the early Gzhelian Heebner Shale of the Oread cyclothem in the North American Midcontinent region, the cyclothem from which I. simulator was originally named. This analysis shows that the I. simulator group comprises a set of at least five species with asymmetrical P1 element pairs, relatively short adcarinal ridges, and a variably developed eccentric groove. Species discrimination is based on the presence of caudal and rostral lobes, character of the adcarinal ridges, and platform shape. The species I. simulator is restricted to P1 elements with a caudal adcarinal ridge that is isolated from the caudal platform margin. Idiognathodus lateralis sp. nov. is erected to include P1 elements with a caudal adcarinal ridge that is not isolated from the caudal platform margin.
Źródło:
Acta Palaeontologica Polonica; 2016, 61, 3; 477-502
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
First evidence of arthropod herbivory in calamitalean stems from the Pennsylvanian of Germany
Autorzy:
Laaß, Michael
Kretschmer, Sophie
Leipner, Angelika
Hauschke, Norbert
Powiązania:
https://bibliotekanauki.pl/articles/1836364.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
Late Carboniferous
Pennsylvanian
borings
calamitalean stem
plant-arthropod interaction
Opis:
Arthropod borings are commonly described from pteridophyte and gymnosperm wood in the late Palaeozoic, but they are almost unknown from calamitalean stems. In this paper, a new type of boring in calamital- ean stems from two German localities is reported. These are the mine dumps of Plötz near Halle (Saale), Saale Basin, (Wettin Subformation, Latest Pennsylvanian, Gzhelian, Stephanian C) and the Piesberg quarry near Osnabrück, Subvariscan Foreland Basin, (Osnabrück Formation, Middle Pennsylvanian, latest Moscovian, Asturian/ Westphalian D). Most borings were found in marginal parenchyma of the internodes. They run longitudinally through the pith. The borings are preserved as three-dimensional casts that protrude on the surface of considerably compressed pith casts. This unique preservation of the boring casts required special taphonomic conditions, such as rapid burial coupled with different sediment infilling of the borings and the pith cavity, as well as anoxic conditions to prevent decomposition of the non-resistant parenchyma. Most borings are between 3 to 5 mm wide and contain two classes of invertebrate coprolites: the smaller coprolites are sub-spheroidal in shape and measure (37 to 74) x (37 to 63) pm in diameter. The larger coprolites are also sub-spheroidal and range between (88 to'158) x (68 to 123) pm in diameter. The coprolites, the morphology of the borings, as well as the feeding strategy of the arthropods, suggest that the tunnel system was most likely produced by small millipedes (Myriapoda) and probably also visited by oribatid mites.
Źródło:
Annales Societatis Geologorum Poloniae; 2020, 90, 3; 219-246
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Early Bashkirian Rugosa (Anthozoa) from the Donets Basin (Ukraine). Part 5. The Family Bothrophyllidae Fomichev, 1953
Autorzy:
Fedorowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/139366.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Late Mississippian
Early Pennsylvanian
Bothrophyllidae
taxonomy
microstructure vs. diagenesis
relationships vs. similarity
missisip
pensylwan
taksonomia
mikrostruktura
diageneza
relacje
podobieństwo
Opis:
Four genera (one new, one questionable), seven named species (five new) and five taxa left in open nomenclature are described from uppermost Serpukhovian (Limestone D53) to middle Bashkirian (Limestone G11) strata. A new genus: Nina and the new species: Bothrophyllum kalmyussi, B. gorbachevensis, Nina donetsiana, N. dibimitaria and N. magna are introduced. The genus Cystilophophyllum Fomichev, 1953 is redefined and transferred to the Family Bothrophyllidae. Three general topics discussed in the Considerations are: 1. The taxonomic value of the microstructure of the septa and the necessity for a distinction between that character and diagenetic alterations; 2. Depositional conditions, under which the rugose coral skeletons were deposited; 3. The similarity of skeletal constructions vs. relationships in some taxa of the Subfamily Dibunophyllinae Wang, 1950 and the Family Bothrophyllidae Fomichev, 1953. The lack of final conclusions in the matter of the relationships is due to the incompleteness and restricted number of specimens studied herein and the incomplete investigations of a great majority of the earlier described bothrophyllid taxa.
Źródło:
Acta Geologica Polonica; 2017, 67, 2; 249-298
0001-5709
Pojawia się w:
Acta Geologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bashkirian Rugosa (Anthozoa) from the Donets Basin (Ukraine). Part 8. The Family Kumpanophyllidae Fomichev, 1953
Autorzy:
Fedorowski, Jerzy
Powiązania:
https://bibliotekanauki.pl/articles/138687.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Rugosa
Anthozoa
Carboniferous
early Pennsylvanian
taxonomy
palaeogeography
koralowce
koralowce czteropromienne
rugozy
karbon
pensylwan
taksonomia
paleogeografia
Opis:
The Family Kumpanophyllidae Fomichev, 1953, synonymised by Hill (1981) with the Family Aulophyllidae Dybowski, 1873, is emended and accepted as valid. The new concept of this family, based on both new collections and discussion on literature data, confirms the solitary growth form of its type genus Kumpanophyllum Fomichev, 1953. However, several fasciculate colonial taxa, so far assigned to various families, may belong to this family as well. The emended genus Kumpanophyllum forms a widely distributed taxon, present in Eastern and Western Europe and in Asia. Its Serpukhovian and Bashkirian occurrences in China vs Bashkirian occurrences in the Donets Basin and in Spain, may suggest its far-Asiatic origin, but none of the existing taxa can be suggested as ancestral for that genus. Thus, the suborder position of the Kumpanophyllidae remains unknown. Four new species: K. columellatum, K. decessum, K. levis, and K. praecox, three Kumpanophyllum species left in open nomenclature and one offsetting specimen, questionably assigned to the genus, are described.
Źródło:
Acta Geologica Polonica; 2019, 69, 3; 431-463
0001-5709
Pojawia się w:
Acta Geologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bashkirian Rugosa (Anthozoa) from the Donets Basin (Ukraine). Part 7. The Family Neokoninckophyllidae Fomichev, 1953, with a preliminary revision of Moscovian taxa
Autorzy:
Fedorowski, Jerzy
Powiązania:
https://bibliotekanauki.pl/articles/139333.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
carboniferous
pennsylvanian
neokoninckophyllidae
emendation
phylogeny
palaeogeographic implications
karbon
pensylwan
filogeneza
implikacje paleogeograficzne
Opis:
The Family Neokoninckophyllidae and its type genus Neokoninckophyllum Fomichev, 1939 (type species: N. tanaicum Fomichev, 1939) are discussed and emended. In addition, the genera Orygmophyllum Fomichev, 1953 and Yuanophylloides Fomichev, 1953, originally included in the Families Campophyllidae Wedekind, 1922 and Lophophyllidae Grabau, 1928, respectively, are emended as well and transferred to the Neokoninckophyllidae. Two early Bashkirian species, viz. Yuanophylloides rectus (Vassilyuk in Aizenverg et al., 1983) and Y. inauditus (Moore and Jeffords, 1945), and the Moscovian Neokoninckophyllum sp. nov. are described on the basis of new collections from the Donets Basin. Neokoninckophyllum tanaicum, Yuanophylloides gorskyi Fomichev, 1953 (both Moscovian in age) and Y. cruciformis Fomichev, 1953 (latest Bashkirian), are redescribed on the basis of peels taken from Fomichev’s (1953) type specimens. Derivation of the Family Neokoninckophyllidae from the Subfamily Dibunophyllinae Wang, 1950 is postulated and phylogenetic links within the former are hinted at. The occurrence of Yuanophylloides inauditus in both the Donets Basin and the Western Interior Province of North America points to marine communication between those areas during the Bashkirian. The slightly earlier appearance of the oldest neokoninckophyllids in the Donets Basin, in comparison to North America (i.e., R1 vs R2 ammonoid biozones), documents the common roots and monophyletic development of the Neokoninckophyllidae in both areas.
Źródło:
Acta Geologica Polonica; 2019, 69, 1; 51-87
0001-5709
Pojawia się w:
Acta Geologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-10 z 10

    Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies