Informacja

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

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "Pisarska-Jamroży, Małgorzata" wg kryterium: Autor

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-7 z 7
    Tytuł:
    Adjustment coefficients for planimetric analysis of the granulometry of coarse-grained sediments
    Autorzy:
    Pisarska-Jamroży, Małgorzata
    Kossowski, Tomasz
    Jamroży, Jerzy
    Powiązania:
    https://bibliotekanauki.pl/articles/94642.pdf
    Data publikacji:
    2011
    Wydawca:
    Uniwersytet im. Adama Mickiewicza w Poznaniu
    Tematy:
    grain-size distribution
    planimetric analysis
    coarse-grained sediments
    skład granulometryczny
    analiza planimetryczna
    osady gruboziarniste
    Opis:
    The relationship between results from granulometric analyses of by sieving and by planimetry was investigated by numerical simulation of cubes filled with boulders, cobbles and pebbles. Cross-sections through the sediment were simulated and compared with photos of an actual outcrop wall. Volumes estimated on the basis of planimetric analysis using the cross-sections were compared with sieve analyses, thus allowing to determine adjustment coefficients. The coefficients for pebbles and cobbles have a small standard error, but are larger for boulders, which might be a consequence of too small areas formed by the cross-sections.
    Źródło:
    Geologos; 2011, 17, 4; 221-226
    1426-8981
    2080-6574
    Pojawia się w:
    Geologos
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    First attempt to model numerically seismically-induced soft-sediment deformation structures : a comparison with field examples
    Autorzy:
    Bronikowska, Małgorzata
    Pisarska-Jamroży, Małgorzata
    Loon, van Tom
    Powiązania:
    https://bibliotekanauki.pl/articles/2058679.pdf
    Data publikacji:
    2021
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    numerical modelling
    seismic waves
    wave propagation
    seismites
    soft-sediment deformation structures
    load casts
    injection structures
    Opis:
    No numerical model has thus far addressed seismites, even though seismites are frequently used for the conditions which have to be fulfilled for the development of seismites have also been estimated only empirically. The present contribution is a first attempt to model numerically the soft-sediment deformation structures caused by the passage of S-waves through near-surface sedimentary layers. The simulations are based on the so-reconstruction of seismic events in the geological past. This is the more remarkable since the boundary called pressure tube model and the iSALE2D program. We modelled a seismic S-wave with six different vertical velocities, ranging from 1.6 to 2.6 m · s-1, passing through sediments with different densities and porosities in a sedimentary succession from the surface down to a depth of 10 m. The modelled soft-sediment deformation structures (load casts, flame structures, injection structures and sedimentary volcanoes) show similar geometries and sizes as those known from laboratory experiments and field studies. The geometry, size and type of these structures depend on the sediment properties and on the initial pressure used as a trigger mechanism, rather than on S-wave velocity. In contrast, the depth of the seismites appears to depend strongly on the S-wave velocity.
    Źródło:
    Geological Quarterly; 2021, 65, 4; s. 216--225
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Is the Charlottenthal fan (marginal zone of the Pomeranian phase, NE Germany) an end moraine?
    Autorzy:
    Pisarska-Jamroży, Małgorzata
    Börner, Andreas
    Powiązania:
    https://bibliotekanauki.pl/articles/94327.pdf
    Data publikacji:
    2011
    Wydawca:
    Uniwersytet im. Adama Mickiewicza w Poznaniu
    Tematy:
    transitional fan
    glaciofluvial sediment
    gravel petrography
    Weichselian glaciation
    Pomeranian Phase
    NE Germany
    osady fluwioglacjalne
    żwiry petrograficzne
    Pomorze
    północne Niemcy
    Opis:
    The maximum ice-sheet extent of a glaciation or glacial phase is in most cases indicated by the position of end moraines. In some cases, however, the maximum extent of the ice sheet is indicated by a fan which represents the transitional zone between the end moraine and the proximal outwash plain (sandur). Such a fan from the Pomeranian phase near Charlottenthal in NE Germany has been investigated for its lithofacies, and the depositional mechanisms of the two sedimentary environments (end moraine and outwash plain) are reconstructed. The Charlottenthal profile is not characteristic in a sedimentological sense of a typical marginal end moraine or a sandur. The deposits represent subaerial debris flows, sheet floods and channelized currents, which are typically processes for transitional fan. Gravel samples from the till complex show typical Weichselian till compositions. These till compositions indicate a general transport direction from North to South, which is consistent with the known movement of the ice sheet during the Pomeranian phase of the Weichselian.
    Źródło:
    Geologos; 2011, 17, 1; 17-28
    1426-8981
    2080-6574
    Pojawia się w:
    Geologos
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Miocene quartz sands redeposited on subaqueous and alluvial fans during the Saalian: Interpretation of the depositional scenario at Ujście, western Poland
    Autorzy:
    Mleczak, Mateusz
    Pisarska-Jamroży, Małgorzata
    Powiązania:
    https://bibliotekanauki.pl/articles/94554.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet im. Adama Mickiewicza w Poznaniu
    Tematy:
    proglacial lakes
    distributary channels
    sandy clinothems
    Odranian stadial
    jezioro proglacjalne
    odnoga rzeki
    stadiały Odry
    Opis:
    The 14-m-thick sandy succession at Ujście in western Poland formed during the Odranian stadial of the Saalian glaciation, is exceptional in being very well sorted, almost mono-fractional (fine-grained sands) and mono-mineral (mainly quartz grains) and in lacking Scandinavian erratics. The lower sequence (5 metres in thickness) consists of three stacked packages of clinoforms (inclined cross-stratified sands) and is interpreted as having been deposited on a subaqueous fan in a shallow lake during two phases of rising water levels. The upper sand (9 metres in thickness) with (sub) horizontal stratification was redeposited on a subaerial alluvial fan. Distinctive distributary channels that occur in the uppermost part of the subaqueous fan and in the lowermost portion of the alluvial fan may indicate a change in sedimentation style from subaqueous to subaerial. Moreover, the subaerial position of the fan supports the presence of ice-wedge casts that developed under periglacial conditions in the upper part of alluvial fan. The results of granulometric analysis, rounding and frosting of grains and mineral analysis indicate that the sands are derived from Gorzów Formation of Early Miocene age. The only feasible explanation is that the 14-m-thick unit must have been redeposited during the Saalian glaciation.
    Źródło:
    Geologos; 2019, 25, 2; 125-137
    1426-8981
    2080-6574
    Pojawia się w:
    Geologos
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Sedimentation style of a Pleistocene kame terrace from the Western Sudety Mountains, S Poland
    Autorzy:
    Pisarska-Jamroży, Małgorzata
    Machowiak, Katarzyna
    Krzyszkowski, Dariusz
    Powiązania:
    https://bibliotekanauki.pl/articles/94225.pdf
    Data publikacji:
    2010
    Wydawca:
    Uniwersytet im. Adama Mickiewicza w Poznaniu
    Tematy:
    kame-terrace
    confined braided rivers
    lithofacies analysis
    sediment-petrographical analysis
    Pleistocene
    Sudety Mountains
    analiza litofacjalna
    analiza osadowo-petrograficzna
    plejstocen
    Sudety
    Opis:
    The depositional conditions of kame terraces in a mountain valley were analysed sedimentologically and petrologically through a series of kame terraces in the Rudawy Janowickie mountains. The kame terraces comprise five lithofacies associations. Lithofacies association GRt, Sp originates from deposition in the high-energy, deep gravel-bed channel of a braided river. Lithofacies association GC represents a washed out glacial till. Probably a thin layer of till was washed out by sandy braided rivers (Sp). The fourth association (Fh, Fm) indicates a shallow and quite small glaciomarginal lake. The last association (GRt, GRp) indicates the return of deposition in a sandy-bed braided channel. The petrography of the Janowice Wiekie pit and measurements of cross-stratified beds indicate a palaeocurrent direction from N to S. The Janowice Wielkie sedimentary succession accumulated most probably during the Saalian (Odranian, Saale I, Drenthe) as the first phase of ice-sheet melting, because the kame terrace under study is the highest one, 25-27 m above the Bóbr river level. The deposits under study are dominated by local components. The proglacial streams flowed along the margin of the ice sheet and deposited the kame terrace. The majority of the sedimentary succession was deposited in a confined braided-river system in quite deep channels.
    Źródło:
    Geologos; 2010, 16, 2; 101-110
    1426-8981
    2080-6574
    Pojawia się w:
    Geologos
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Sedimentological distinction in glacigenic sediments between load casts induced by periglacial processes from those induced by seismic shocks
    Autorzy:
    Van Loon, Antonius Johannes
    Pisarska-Jamroży, Małgorzata
    Woronko, Barbara
    Powiązania:
    https://bibliotekanauki.pl/articles/2060257.pdf
    Data publikacji:
    2020
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    load casts
    pseudonodules
    soft-sediment deformation structures
    cryoturbation
    seismites
    Opis:
    Loading processes and the resulting load structures induced by processes related to periglacial conditions are compared to those induced by seismic shocks. The load structures themselves are relatively easily recognizable but the responsible trigger mechanism is, though depending on the geological context, commonly difficult to establish. Load structures like load casts, pseudonodules, ball-and-pillow structures and flame structures are commonly ascribed to instable density gradients within sediments and to differential loading, but their formation always requires liquefaction. In glacigenic sediments, deformation structures have most commonly been ascribed to periglacial processes (as a type of cryoturbations), but it becomes ever more clear that glacigenic sediments can, particularly during ice-front fluctuations, be affected by faulting-related earthquakes (due to glacio-isostatic adjustment), and the thus triggered seismic shocks may result in deformations, including - most commonly - load structures. We inventory the evidence that may help to distinguish, on the basis of textural and structural features, load structures with a seismic origin from those that result from periglacial processes, taking into account that truly diagnostic criteria do not exist.
    Źródło:
    Geological Quarterly; 2020, 64, 3; 626--640
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    W jaki sposób badać sejsmity? Przegląd metod badawczych
    How to study seismites? A review of research methods
    Autorzy:
    Belzyt, Szymon
    Pisarska-Jamroży, Małgorzata
    Powiązania:
    https://bibliotekanauki.pl/articles/578355.pdf
    Data publikacji:
    2017
    Wydawca:
    Łódzkie Towarzystwo Naukowe
    Tematy:
    deformacje w osadach nieskonsolidowanych
    paleosejsmologia
    trzęsienia ziemi
    soft-sediment deformation structures
    palaeoseismology
    earthquakes
    Opis:
    Propagacja, wywołanej trzęsieniem ziemi, fali sejsmicznej w uwodnionych nieskonsolidowanych osadach drobnoziarnistych powodować może ich upłynnienie. W efekcie tego procesu powstać mogą warstwy zawierające struktury deformacyjne zwane sejsmitami. Zaproponowanie sejsmicznej genezy warstw zdeformowanych opiera się na zastosowaniu kryteriów rozpoznawczych. W tym celu konieczne jest: (1) przeprowadzenie analizy litofacjalnej osadów występujących w analizowanym profilu; (2) szczegółowe opisanie: deformacji, z uwzględnieniem ich rozmieszczenia w profilu i w obrębie zdeformowanej ławicy, rozciągłości poziomej, zróżnicowania przestrzennego, geometrii, tekstury i struktury osadów zaangażowanych w deformacje, osadów otaczających oraz zmiany rozkładu przestrzennego struktur deformacyjnych przy wykorzystaniu ścięcia poziomego i ukośnego; (3) wytypowanie struktur, które mogły powstać w efekcie upłynnienia i porównanie ich ze współcześnie tworzącymi się deformacjami związanymi ze wstrząsami sejsmicznymi; (4) rozpoznanie budowy geologicznej podłoża skalnego, w tym m.in. opis aktywności uskoków; (5) dyskusja innych mechanizmów, które mogły odpowiadać za powstanie deformacji; (6) określenie czasu powstania struktur deformacyjnych.
    Earthquake-triggered seismic wave propagation can induce liquefaction of water-saturated unconsolidated finegrained clastic sediments. As a result, layers with soft-sediment deformation structures called seismites can be formed. To propose a seismic origin of the layer, it should meet recognition criteria. Therefore, it is necessary to provide (1) a lithofacies analysis of the sediments in the studied section; (2) a detailed description of deformation structures including their position in the sedimentological log as well as within the deformed layer, lateral extent and continuity, geometry, texture and structure of both deformed and host sediments, spatial distribution and heterogenity of deformation structures in the plan view as well as an oblique view; (3) identification of structures that could have been formed during a liquefaction process and a comparison with those that recently occurred in tectonically active zones as an earthquake effect; (4) a subsurface geological structure recognition, particularly the presence and activity of faults; (5) discussion and elimination of all other possible triggers that could have caused sediment deformation; (6) estimation of the age of the deformation.
    Źródło:
    Acta Geographica Lodziensia; 2017, 106; 171-180
    0065-1249
    Pojawia się w:
    Acta Geographica Lodziensia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

      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