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Wyświetlanie 1-15 z 54
Tytuł:
The intramontane Orava Basin - evidence of large-scale Miocene to Quaternary sinistral wrenching in the Alpine-Carpathian-Pannonian area
Autorzy:
Ludwiniak, Mirosław
Śmigielski, Michał
Kowalczyk, Sebastian
Łoziński, Maciej
Czarniecka, Urszula
Lewińska, Lena
Powiązania:
https://bibliotekanauki.pl/articles/138722.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Orava Basin
Central Carpathian Palaeogene Basin
structural analysis
strike-slip related basin
transrotational basin
joint pattern analysis
Western Carpathians
Kotlina Orawska
paleogeński basen centralno-karpacki
paleogeńskiego basen Karpat centralnych
analiza strukturalna
basen przesuwczy
basen transrotacyjny
Karpaty Zachodnie
Opis:
The Carpathian Orava Basin is a tectonic structure filled with Neogene and Quaternary deposits superimposed on the collision zone between the ALCAPA and European plates. Tectonic features of the south-eastern margin of the Orava Basin and the adjoining part of the fore-arc Central Carpathian Palaeogene Basin were studied. Field observations of mesoscopic structures, analyses of digital elevation models and geological maps, supplemented with electrical resistivity tomography surveys were performed. Particular attention was paid to joint network analysis. The NE-SW-trending Krowiarki and Hruštinka-Biela Orava sinistral fault zones were recognized as key tectonic features that influenced the Orava Basin development. They constitute the north-eastern part of a larger Mur-Mürz-Žilina fault system that separates the Western Carpathians from the Eastern Alps. The interaction of these sinistral fault zones with the older tectonic structures of the collision zone caused the initiation and further development of the Orava Basin as a strike-slip-related basin. The Krowiarki Fault Zone subdivides areas with a different deformation pattern within the sediments of the Central Carpathian Palaeogene Basin and was active at least from the time of cessation of its sedimentation in the early Miocene. Comparison of structural data with the recent tectonic stress field, earthquake focal mechanisms and GPS measurements allows us to conclude that the Krowiarki Fault Zone shows a stable general pattern of tectonic activity for more than the last 20 myr and is presently still active.
Źródło:
Acta Geologica Polonica; 2019, 69, 3; 339-386
0001-5709
Pojawia się w:
Acta Geologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Young tectonics of the Orava Basin and southern portion of the Magura Nappe, Polish western Carpathians, in the light of gravity studies: a new research proposal
Autorzy:
Łój, Monika
Madej, Janusz
Porzucek, Sławomir
Zuchiewicz, Witold
Powiązania:
https://bibliotekanauki.pl/articles/2026799.pdf
Data publikacji:
2007
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
gravity survey
neotectonics
Orava Basin
West Carpathians
Polska
Opis:
The aim of this pa per is to pres ent a mul ti dis ci plin ary proj ect deal ing with analy sis of young crus tal move ments in the Orava Ba sin, Pol ish West ern Car pa thi ans, on the ba sis of a three year long gra vimet ric, geo detic, geo logi cal and mor - phos truc tural study. The prob lem con sists in quan ti ta tive in ter pre ta tion of the ob tained gra vimet ric re sults, i.e. in com - bin ing tem po ral grav ity changes with those of geo dy namic crus tal pro cesses. Grav ity sur veys con ducted in 2004 and 2005 show a de crease in grav ity val ues at bench marks situ ated in the Cen tral Car pa thian Palaeo gene Ba sin and Magura Nappe, while the cen tral part of the Orava Ba sin re veals the op po site trend. Such changes, if con firmed by suc - ces sive meas ure ment cam paigns, ap pear to in di cate re cent up lift of the ba sin mar gins and sub si dence of the ba sin it self.
Źródło:
Studia Quaternaria; 2007, 24; 53-60
1641-5558
2300-0384
Pojawia się w:
Studia Quaternaria
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cenozoic stress field in the southwestern Antarctic Peninsula from brittle mesostructures in Wright Peninsula, Adelaide Island
Autorzy:
Maestro, Adolfo
López-Martínez, Jerónimo
Powiązania:
https://bibliotekanauki.pl/articles/2051558.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Antarctica
Adelaide Island
fore−arc basin
palaeostress orientation
Źródło:
Polish Polar Research; 2011, 1; 39-58
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Recycled Upper Cretaceous calcareous nannoplankton from the Pecten Conglomerate of Cockburn Island, Antarctica
Autorzy:
Gaździcka, Elżbieta
Gaździcki, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/2052709.pdf
Data publikacji:
1994
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Antarctica
James Ross Basin
Upper Cretaceous
calcareous nannoplankton
Źródło:
Polish Polar Research; 1994, 15, 1-2; 3-13
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Is the research of deep-seated geological structures useful from practical point of view?
Autorzy:
Jankowski, Jerzy
Powiązania:
https://bibliotekanauki.pl/articles/703640.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
pure and applied geophysics
sedimentary basin
deep natural gas
Opis:
Similarities and differences between basic and application-oriented research in geophysics are discussed. Particular attention is drawn to the fact that some results of basic research may turn out to be useful from practical point of view. This is illustrated by the example of the lithosphere investigations in Poland. Poland is a site of two huge sedimentary basins, the Polish Basin and the Carpathians. Surveys of the lower parts of these basins, as performed with two methods, explosive seismology and electromagnetic sounding, revealed the presence of porous rocks, which may suggest their reservoir-like nature.
Źródło:
Nauka; 2009, 4
1231-8515
Pojawia się w:
Nauka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Production and characterization of tissue cultures of four crocus species from the Carpathian Basin
Autorzy:
Freytag, Csongor
Pabar, Sándor Attila
Demeter, Zita
Simon, Ádám
Resetár, Anna
Molnár V., Attila
Sramkó, Gábor
Máthé, Csaba
Powiązania:
https://bibliotekanauki.pl/articles/952114.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
carpathian basin
organogenesis
embryogenesis
plant regeneration
antioxidant
enzymes
crocus
Opis:
We aimed to produce tissue cultures and plant regeneration from endangered Crocus species: C. scepusiensis, C. tommasinianus, C. vittatus (“Verni” series of the genus) and C. banaticus. For initiation of cultures we used a plant growth regulator (PGR) combination used for in vitro culture of saffron and its relatives: 10 mg L-1 α-naphthaleneacetic acid (NAA) and 1 mg L-1 6-benzyladenine (BA). Shoot tips of young seedlings (C. scepusiensis) and corms (for the rest of species) were used as explants. C. scepusiensis explants developed into organogenic calli. On media with decreased NAA and with or without increased BA concentration, calli produced stigma-like structures and/or shoots and whole plants. In the other species, callus initiation medium induced callus formation with abundant somatic embryos. In C. tommasinianus, embryos developed shoots when auxin content of medium was decreased. In C. banaticus, a decrease of auxin with or without an increase in cytokinin content led to shoot or whole plant regeneration, as in C. scepusiensis. In the case of C. vittatus and C. banaticus, initiation and/or maintenance of cultures on indole-3-butyric acid (IBA) and increased sucrose concentration stimulated whole plant regeneration and in vitro cormlet development. C. scepusiensis and the rest of cultures (organogenic vs. embryogenic) differed at the biochemical level: C. scepusiensis cultures had higher (yet still low) enzymatic antioxidant (catalase, peroxidase) activities. With respect to catalase isoenzyme patterns, C. banaticus was different from the rest of cultures, demonstrating its distinct taxonomical position. Besides germplasm preservation use of the present cultures, they have a potential biotechnological value.
Źródło:
Acta Biologica Cracoviensia. Series Botanica; 2017, 59, 2
0001-5296
Pojawia się w:
Acta Biologica Cracoviensia. Series Botanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Large-scale deformations in Neogene deposits near Dobrzyń on the Vistula (central Poland) – thrusting from N/NE or valley-side glaciotectonics in the Płock Basin?
Autorzy:
Roman, Małgorzata
Żuk, Rafał
Powiązania:
https://bibliotekanauki.pl/articles/2025180.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
soft-sediment deformations
glaciotectonics
Structural analysis
Pleistocene
Płock Basin
Opis:
The article is focused on the most recent investigations of glaciotectonic structures in high escarpment exposures of the Vistula valley from Dobrzyń to Kuzki in the western part of the Płock Basin. Deformations involve Neogene and occasionally the Lower Pleistocene deposits and they are not expressed as landforms. Structural investigations and analysis of archival geological data provided new information on the origin of large-scale shear structures. Results obtained are clearly contrary to the concept of Brykczyński (1982) regarding valley-side glaciotectonics in the Płock Basin. An emergence of the extensive zone of serial thrust structures of significant amplitude (up to 100–150 m) was found to have not been controlled by a palaeovalley. A driving mechanism is interpreted as a gravity spreading in front of ice sheets advancing from north-northeast during the South Polish Complex (Dorst-Elsterian).
Źródło:
Studia Quaternaria; 2019, 36; 147-159
1641-5558
2300-0384
Pojawia się w:
Studia Quaternaria
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Late Cenozoic Bryozoa from diamictites of Cape Lamb, Vega Island, Antarctic Peninsula
Autorzy:
Adamonis, Susana
Hara, Urszula
Concheyro, Andrea
Powiązania:
https://bibliotekanauki.pl/articles/2047142.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Antarctica
James Ross Basin
upper Cenozoic diamictites
Bryozoans
Pleistocene
Źródło:
Polish Polar Research; 2015, 4; 325-341
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On the region of attraction of dynamical systems: Application to Lorenz equations
Autorzy:
Hammami, M. A.
Rettab, N. H.
Powiązania:
https://bibliotekanauki.pl/articles/229791.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
nonlinear dynamical systems
Lyapunov function
basin of attraction
Lorenz equations
Opis:
Many nonlinear dynamical systems can present a challenge for the stability analysis in particular the estimation of the region of attraction of an equilibrium point. The usual methodis based on Lyapunov techniques. For the validity of the analysis it should be supposed that the initial conditions lie in the domain of attraction. In this paper, we investigate such problem for a class of dynamical systems where the origin is not necessarily an equilibrium point. In this case, a small compact neighborhood of the origin can be estimated as an attractor for the system. We give a method to estimate the basin of attraction based on the construction of a suitable Lyapunov function. Furthermore, an application to Lorenz system is given to verify the effectiveness of the proposed method.
Źródło:
Archives of Control Sciences; 2020, 30, 3; 389-409
1230-2384
Pojawia się w:
Archives of Control Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
12 millennia of climatic and human induced vegetation changes in the Lower San Valley near Jarosław (SE Poland) in the light of pollen analysis
Autorzy:
Kołaczek, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/2026704.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Sandomierz Basin
pollen analysis
vegetation history
Late Glacial
Holocene
human impact
Ulmus
Opis:
Veg e ta tion changes in the Lower San Val ley near Jaros³aw are re con structed from the Youn ger Dryas to the pres ent time on the ba sis of palynological anal y sis of the peat core. The pol len pro file came from a an old riverbed and was sup ple mented by ra dio car bon datings. The Youn ger Dryas and early Preboreal veg e ta tion was char ac ter ised by a high pro por tion of for est com mu ni ties with pine (Pinus sylvestris and P. cembra) and birch (Betula), while patches of open area were dom i nated by the steppe with Ar te mi sia. Cli ma tic ame lio ra tion dur ing the Preboreal chronozone led to the rapid spread of elm (Ulmus), which was prob a bly a dom i nant taxon on the low est ter races of the val ley. Terrestrialization of the wa ter body ex ist ing in the palaeomeaner and the sub se quent be gin ning of peat ac cu mu la tion caused a de - te ri o ra tion in pol len pres er va tion. Hence, the in ter pre ta tion of the pro file sec tion span ning the pe riod be tween the Bo - real and Subatlantic chronozones was se ri ously dis turbed due to se lec tive cor ro sion and the overrepresentation of Pinus sylvestris type and Filicales monolete sporomorphs. Be tween ca. 336 and 1152 AD fluc tu a tions in wood land cover were re corded. Im por tant com po nents in those for ests, de spite the dom i na tion of Pinus sylvestris, were Quercus, Carpinus betulus, Fagus sylvatica and Abies alba. The first pol len grains of ce re als (Cerealia type) were found be fore ca. 1605–1414 BC and may be at trib uted to the ag ri cul tural ac tiv ity of the Neo lithic and/or early Bronze tribes. Pe ri - ods of strong de for es ta tion caused by hu mans were prob a bly re lated to the time when the Tarnobrzeska Group of the Lusatian Cul ture and the Przeworska Cul ture were ac tive. The first groups of Slavs did not sig nif i cantly in flu ence the en vi ron ment, but the sub se quent de vel op ment of those groups led to more vis i ble de for es ta tion, which was trig gered af ter the es tab lish ment of Jaros³aw in the 11th cen tury AD.
Źródło:
Studia Quaternaria; 2011, 28; 25-39
1641-5558
2300-0384
Pojawia się w:
Studia Quaternaria
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nannofossils, foraminifera and microforaminiferal linings in the Cenozoic diamictites of Cape Lamb, Vega Island, Antarctica
Autorzy:
Concheyro, Andrea
Caramés, Andrea
Amenábar, Cecilia R.
Lescano, Marina
Powiązania:
https://bibliotekanauki.pl/articles/2051344.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Antarctica
James Ross Basin
Cenozoic diamictites
calcareous nanno−fossils
Foraminifera
microforaminiferal linings
Źródło:
Polish Polar Research; 2014, 1; 1-26
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The OAE1a in Cuchía (Early Aptian, Spain): C and O geochemistry and global correlation
Autorzy:
García-Mondéjar, J.
Fernández-Mendiola, P. A.
Owen, H. G.
Powiązania:
https://bibliotekanauki.pl/articles/139445.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Cretaceous
Aptian
Basque-Cantabrian Basin
C-O isotopes
TOC
kreda
apt
izotopy
Opis:
C-isotopes, TOC and O geochemical data from the lower Aptian Cuchía section in the western Basque-Cantabrian basin (BCB) allow an accurate delimitation of the OAE1a-equivalent and its geochemical Menegatti´s segments, a detailed δ13Ccarb correlation with regional and interregional sections, and a high-resolution construction of TOC and bulk-rock δ18Ocarb curves and their interpretation. The δ13Ccarb values range from -2‰ and +4‰ (VPDB). They agree with previous data from the eastern BCB sections (Aralar) confirming the ammonite age of the OAE1a in the Basque-Cantabrian basin: Deshayesites forbesi, Deshayesites deshayesi, and Deshayesites deshayesi-Dufrenoyia furcata transition Zones. Interregional δ13Ccarb correlation with pelagic (Cismon, Italy, and Mid-Pacific Mountains, DSDP Site 463) and neritic (Roquefort-La Bédoule, France) core sections, reveals a common profile of a wide negative excursion characteristic of the OAE1a. It consists of a double trough separated by a flat relative maximum, with two negative spikes in the upper trough of neritic sections. TOC absolute values range from 0.12% to 1.37%. Segments of the TOC curve with persistent low values closely correspond with descending segments of the δ13Ccarb curve, and are attributed to lesser organic productivity in the BCB. Detailed bulk-rock δ18Ocarb data (-5.71‰ to -1.05 ‰ PDB) and variation curve show two main positive O-isotope shifts and three minor positive inflections, within a general negative trend characteristic of the OAE1a. The two major positive shifts correspond to both shallowing upwards sequences and the lowermost can be related to a eustatic sea level fall. Independent interregional correlation of the O-isotope shifts with C-isotopes supports their interpretation as punctuating colder events within a general warming trend.
Źródło:
Acta Geologica Polonica; 2015, 65, 4; 525-543
0001-5709
Pojawia się w:
Acta Geologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Early Bashkirian Rugosa (Anthozoa) from the Donets Basin, Ukraine. Part 4. Cordibia, a new protocolonial genus
Autorzy:
Fedorowski, J.
Ogar, V. V.
Powiązania:
https://bibliotekanauki.pl/articles/950346.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Rugosa (Anthozoa)
Cordibia
Protocoloniality
Bashkirian
Donets Basin
Ukraine
rugozy
Baszkir
Zagłębie Donieckie
Ukraina
Opis:
Cordibia pumila gen. et sp. nov. (Aulophyllidae, Dibunophyllinae) from the Lower Bashkirian E1 Limestone of the Donets Basin, Ukraine is described. The term "protocolony" is formally defined as a growth form intermediate between the solitary and colonial. Protocolonies consist of protocorallites and verticils of non-reproductive offsets [i.e., the lost structures]. The early ontogeny of a protocorallite is compared to the blastogeny in the same species in order to establish characters in common during both processes and to document the usefulness of blastogeny for phylogenetic reconstructions. The short duration and abundance of the occurrence (Limestones E1up acme, E11) of that species also makes it a good marker for the lowest Feninian (= Krasnopolyanian) strata in the Donets Basin.
Źródło:
Acta Geologica Polonica; 2013, 63, 3; 297-341
0001-5709
Pojawia się w:
Acta Geologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determining water and sediment quality related to lead-zinc mining activity
Autorzy:
Yucel, D. S.
Baba, A.
Powiązania:
https://bibliotekanauki.pl/articles/205465.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
metal contamination
Pb-Zn mining
river sediment
Umurbey dam basin
water resources
water quality
Opis:
This study focuses on the Koru and Tesbihdere Pb-Zn mining districts, located at the upstream areas of the Umurbey dam basin. Mining activities in Koru, one of the longest operated mines in NW Turkey, date back to the beginning of the 1900s. The purpose of the study is to (1) determine the hydrochemical properties of the water resources and to assess the potential environmental consequences of mining activities in the Koru and Tesbihdere mining districts, and (2) investigate the effects caused by mining activities on the water resources and sediment quality in the Umurbey dam basin. Concentrations of As, Cd, Cu, Fe, Mn, Pb, and Zn in river sediments downstream of the Tesbihdere and Koru mining district, and in the Umurbey dam sediments were higher than the world average for river sediments. The geoaccumulation index and enrichment factor revealed that sediments were strongly polluted with Pb and Zn, moderately to strongly polluted with Cd and moderately polluted with Cu. The chemical analyses of water resources revealed that the maximum Fe, Zn, Pb, Mn, and Cu concentrations reached 2890 μg/l, 1785 μg/l, 1180 μg/l, 984 μg/l, and 419 μg/l, respectively. The Koru River is classified as polluted water according to Turkish inland water quality regulations. The environmental contamination problems in the local drainage system are caused by leakage from past and current tailing ponds into the Koru River.
Źródło:
Archives of Environmental Protection; 2018, 44, 3; 19-30
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The squamation of “Ctenacanthus” costellatus (Chondrichthyes: Ctenacanthiformes) from the Carboniferous of Lublin area, south-eastern Poland
Autorzy:
Ginter, Michał
Skompski, Stanisław
Powiązania:
https://bibliotekanauki.pl/articles/138805.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Ctenacanthiformes
sharks
dermal skeleton
Viséan
Lublin Coal Basin
rekiny
szkielet skórny
wizen
Lubelskie Zagłębie Węglowe
Opis:
A sample of late Viséan limestone from the Włodawa IG-4 borehole, east of Lublin, Poland, yielded a piece of a tooth and a few hundred well-preserved scales comparable to those of “Ctenacanthus” costellatus Traquair, 1884 from Glencartholm, Scotland, UK. Most of the scales are typical compound body scales of the ctenacanthid type. Their crowns are composed of several separate odontodes whose distal ends are turned backwards and bases are characterised by concave undersides. In the material, there are also sparse scales with similar crowns but with flat or convex bulbous bases, as well as ornamented plates and single, star-like denticles, probably from the head region. The taxonomic status of “Ctenacanthus” costellatus was analysed and a new generic name for that species, viz. Glencartius gen. nov., is proposed.
Źródło:
Acta Geologica Polonica; 2019, 69, 4; 571-582
0001-5709
Pojawia się w:
Acta Geologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 54

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