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EN
The Upper Carboniferous polymictic Balinka Conglomerate was deposited along the western margin of the Boskovice Basin (eastern part of the Bohemian Massif). Angular aggregates of deep-green chromium-rich interstratified clay mineral R1-illite(0.8)/smectite (I/S) are present exclusively in the basal part of this unit. The textural position of chromium-bearing I/S (0.77–2.88 wt.% Cr2O3; 0.040–0.153 apfu Cr) in the conglomerate matrix indicates a genetic link with the highly altered chromium spinel, which is preserved in the relics. The source of Cr-rich spinelides was serpentinized peridotites in the adjacent Moldanubicum (Gföhl Unit). The formation of I/S is related to diagenetic processes in the conglomerate matrix. The fluids would have relatively high fugacity of CO2 and activity of K+. K/Ar ages of 284.1 ± 7.7 and 276.3 ± 7.4 Ma (lower Permian – Kungurian/Artinskian age) confirmed the diagenetic origin of this I/S.
PL
Zaprezentowano nowe odkrycia dobrze zachowanej flory kopalnej, występującej w obrębie formacji z Glinika (westfal D - stefan B – moskow-kasimow) w depresji śródsudeckiej. Flory kopalne znaleziono w Pstrążnej koło Kudowy Zdroju i Sierpnicach koło Głuszycy Górnej. Na stanowiskach tych oznaczono między innymi fragmenty roślin z klasy: Lycopsida, Sphenopsida, Pteridospermopsida i Cordaitopsida. Odkrycia te pomogą w lepszym stopniu poznać roślinność późnego karbonu w obrębie depresji śródsudeckiej. Szczegółowe badania florystyczne i palinologiczne mogą spowodować konieczność weryfikacji stratygrafii uważanego dotychczas za monotonny zespołu skalnego tworzącego formację z Glinika.
EN
New findings with well preserved fossil of flora have been found in a few places in the Intra-Sudetic Depression, within Glinik Formation (Westphalian D – Stephanian B – moscovian-kasimovian). Fossil of flora were found in Pstrążna near Kudowa Zdrój and Sierpnice near Głuszyca Górna. The assemblage consists of: Lycopsida, Sphenopsida, Pteridospermopsida i Cordaitopsida. These discoveries will help with better understanding of Carboniferous vegetation within Intra-Sudetic Depression. Detailed floristic and palynological investigations should result in more detailed stratigraphic scheme of otherwise monotonous Glinik Formation.
EN
Microconchid remains were recognized from the Zacler Beds (Westphalian) of the Nowa Ruda area in Lower Silesia. They were tentatively determined as? Microconchus sp. They have planispirally coiled tubes ranging in diameter from 0.9 to 2.5 mm. Some of the specimens are juveniles, while the rest are possibly mature. Well-visible ornamentation in the form of transverse thicker ribs and thinner longitudinal striae are present on the tube exterior of some well-preserved specimens. Microconchids occur on the surface of the leaf of the seed fern species Karinopteris daviesii.
EN
New tergite fragments of Arthropleura were found at the Nowa Ruda mine (Lower Silesia, Poland), after more than seventy years since any previous discovery. The small dimensions of the preserved structures, in terms of the genus Arthropleura, and the characteristic features of tuberculation probably indicate that the remains do not belong to the type species A. armata, but they could represent a new species. The occurrence of round protrusions in the broken-off tubercles is another feature of the new specimens, which has not been mentioned in the earlier literature. Unfortunately, the scanty remains that we have at our disposal (only two specimens were found) are not sufficient for the proposal of a new species. The number of valid Arthropleura species requires further investigation, especially regarding the features, which are diagnostic for species. The tergites described have very numerous tubercles, which may have taxonomic value in species discrimination. Because the fossils were found on a dump, their exact stratigraphic position is not known. However, they occur together with index leaflets of the seed ferns Paripteris gigantea and Linopteris sp., which enabled the age determination of Upper Namurian - Lower Westphalian for the fossils studied. This new discovery of Arthropleura contributes to a better understanding of the genus and of the Carboniferous land fauna of Poland, which is otherwise poorly known. This is also the first, detailed description of Arthropleura remains from the Polish Carboniferous.
PL
W pracy przedstawiono model entropii dla węglonośnej sukcesji Górnośląskiego Zagłębia Węglowego. Tworzą ją w górnej części osady wyłącznie kontynentalne, związane ze środowiskami fluwialnymi, a w dolnej - paraliczne, gdzie obok osadów kontynentalnych występują utwory związane z szeroko pojmowaną strefą wybrzeża morskiego: przybrzeża, barier piaszczystych, plaż itp. Do badań wybrano 18 otworów wiertniczych, obejmujących swoimi profilami zarówno część kontynentalną, jak i paraliczną sukcesji węglonośnej. Dla wszystkich wyróżnionych litofacji we wszystkich profilach obliczono znormalizowaną entropię pre- i postdepozycyjną i na tej podstawie przeprowadzono klasyfikację profili. Na dendrogramie wyraźnie widać trzy grupy profili, z których pierwsza reprezentuje niemal wyłącznie osady zaliczane do serii paralicznej GZW, a druga - osady tzw. serii mułowcowej GZW. Grupa trzecia wyraźnie odbiegająca od dwóch pozostałych; reprezentowana jest przez osady zaliczane do krakowskiej serii piaskowcowej.
EN
The paper presents the model of entropy for the coal-bearing formations of the Upper Silesian Coal Basin. The coal-bearing formations include exclusively continental (fluvial) sediments in their upper parts and paralic sediments in the lower parts, the latter composed of partly continental, partly near-shore deposits laid down in broadly understood sea coast environment (shoreline, sand bars, beaches, etc.). For studies 18 boreholes were selected in which both the continental and the paralic successions were represented. For all lithofacies distinguished in all successions the normalized, pre- and post-depositional entropies were calculated. Then, successions were categorized on the basis of these calculations. The dendrogram shows three groups of successions from which the first corresponds almost exclusively to the Paralic Series and the second one - to the Mudstone Series. The third group differs distinctly from the first two groups and represents the sediments of the Krakow Sandstone Series.
EN
The paper presents results of detailed research of pore space in the Upper Carboniferous and Lower Permian sandstones and those from the Upper Carboniferous/Lower Permian transitional section. This is followed by a preliminary assessment of reservoir properties against the background of diagenetic processes. The samples were collected from 11 boreholes. The research included standard petrological investigations supported by a digital image analysis of thin sections. Compaction and cementation were the main processes reducing porosity in all the sandstones. Cementation locally reduced primary porosity to approximately 80%. Compaction was much less active. The sandstones are characterized by primary and secondary porosity. Secondary intergranular as well as intercrystalline and intracrystalline porosity developed as a result of diagenetic dissolution of feldspar grains and cements. Variability of petrophysical parameters can be a result, among others, of lithological and facies development. Upper Carboniferous and Upper Carboniferous/Lower Permian sandstones show the best reservoir properties. Lower Permian sandstones are characterized by variable properties.
7
Content available remote Warunki sedymentacji formacji z Glinika (basen śródsudecki)
PL
Osady formacji z Glinika stanowią najwyższą część górnego karbonu (westfal D/stefan AB) na obszarze polskiej części basenu śródsudeckiego. W pracy przedstawiono charakterystykę litostratygraficzną formacji, wyróżniono i zinterpretowano 16 litofacji i 4 asocjacje litofacjalne, rozpoznano styl sedymentacji badanych osadów, pochodzenie materiału okruchowego oraz paleotektoniczne warunki jej sedymentacji. Asocjacje litofacjalne występujące w badanych osadach reprezentują różne środowiska depozycyjne istniejące w systemach depozycyjnych rzek roztokowych i meandrujących. Powszechna jest rzeczna sedymentacja cykliczna. Przeprowadzone analizy wskazują, że w północno-zachodniej części basenu transport osadów odbywał się od N, NW i NE natomiast w południowo-wschodniej części basenu od E i SE. Polska część basenu stanowiła w okresie od westfalu D do stefanu AB peryferyczną część całego basenu sedymentracyjnego. Największa subsydencja zachodziła w północno-zachodniej części basenu, na obszarze Czech. Obszarami źródłowymi osadów dla polskiej części basenu były: kompleks wulkaniczny Rusinowej i Grzmiącej, kwaśne wulkanity rejonu Krenova oraz gnejsy sowiogórskie i granity karkonoskie.
EN
This paper deals with the Glinik Formation deposits, which are of the latest Carboniferous (Westphalian D/Stephanian AB) age in the Polish part of the Intra-Sudetic Basin. Description of lithostratigraphy and selected 16 lithofacies and 4 lithofacies assemblages is presented, and sedimentation, origin of clastic material and paleotectonic conditions of sedimentation process are discussed. The lithofacies assemblages in the studied area represent different environments, belonging to the braided and meandering rivers depositional systems. The cyclic character of sedimentation is common. The study of palaeocurrent directions shows that in the NW part of the basin sediment transport was from the N, NW and NE and in the SE part of the basin from the E and SE. During Westphalian D/Stephanian AB, the N and NE part of the basin (i.e. the Polish part of the basin) constituted a peripheric part of the whole Intra-Sudetic Basin. The Rusinowa and Grzmiąca volcanic complexes, the acid volcanic rocks of Krenov, the Sowie Mts gneisses and the Karkonosze granite were the main sediment-source areas for the Polish part of the Intra-Sudetic Basin.
EN
The studied area of ca. 500 km2 lies within the Main Anticline and the Bytom-Dąbrowa Trough of the Upper Silesia Coal Basin. During the deposition of the fluvial Zabrze Beds, this area was subject to differential subsidence which resulted in gradual eastward thinning of this unit from ca. 250 m near Zabrze to ca. 4 m near Sosnowiec. Maps of net sandstone and coal contents in two stratigraphical intervals selected within the Zabrze Beds point to the presence of four channel tracts. The main tract is parallel to the NE-SW trending axis of maximum subsidence, and the other three are perpendicular to it. During deposition of the Zabrze Beds the main, NE-SW trending channel tract has shifted westward.
EN
Orthacanthus lateral teeth have paired, variably divergent, smooth, usually carinated labio-lingually compressed principal cusps separated by a central foramen; one or more intermediate cusps; and an apical button on the base isolated from the cusps. Several thousand isolated teeth from Texas Artinskian bulk samples are used to define the heterodont dentitions of O.texensis and O. platypternus. The O. texensis tooth base has a labio-lingual width greater than the anteromedial-posterolateral length, the basal tubercle is restricted to the thick labial margin, the principal cusps are serrated to varying degrees, and the posterior cusp is larger. The O.platypternus tooth base is longer than wide, its basal tubercle extends to the center, the labial margin is thin, serrations are absent on the principal cusps, the anterior cusp is larger, and a single intermediate cusp is present. More than two hundred isolated teeth from Nebrasca (Gzhelian) and Pennsylvania (Asselian) provide apreliminary description of the heterodont dentition of O. compressus. The principal cusps are similar to O. texensis but usually(?) are not serrated, and the base is usually wider than long but has a thin or sometimes thick labial margin beneath a single intermediate cusp. A few dozen very small isolated teeth define two ?Xenacanthus dentitions. ?X. ossiani sp. nov. (Gzhelian, Nebrasca) teeth have a thin, longer than wide base with a flange at one end, an isolated apical button, a centrally extended basal tubercle, and a central foramen; the principal and intermediate cusps are recumbent, divergent, highly compressed, smooth and lack serrations. ?X. slaughteri sp. nov. (Artinskian, Texas) teeth have nearly parallel, smooth, carinated, nonserrated, compressed principal cusps and intermediate cusp; the base is thin, longer than wide, with the apical button often in contact with the principal cusps, present or absent central foramen, and basal tubercle restricted to the labial margin. The new species of ?Xenacanthus, as well as O. platypternus and other xenacanth species, appear to be endemic to North America. Other upper Palaeozoic species are endemic to Europe. However, O. compressus and possibly O. texensis are similar to some European species. Despite the Appalachian-Hercynian barrier, dispersal may have occurred in coastal marine waters during a migration phase of the reproductive cycle of some Orthacanthus species.
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