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    Wyświetlanie 1-15 z 15
    Tytuł:
    New data on pre-Eocene karst in the Tatra Mountains, Central Carpathians, Poland
    Autorzy:
    Gradziński, M.
    Jach, R.
    Hercman, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/2059838.pdf
    Data publikacji:
    2016
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    cave deposits
    speleothems
    weathering
    Palaeogene
    Opis:
    Sparry limestone, ferruginous muddy limestone and limestone breccia have been found in the Western Tatra Mts. They occur within Jurassic rocks of the Choč Nappe just below red conglomerates of probable Eocene age. The deposits found bear strong resemblance to the infill of subterranean karst forms. They differ significantly from Quaternary karst deposits of the Tatra Mts. The δ18O values of spelean carbonates suggest crystallisation at relatively high temperatures (over 20°C) whereas their relatively negative δ13C values imply the presence of soil-derived CO2 linked with vegetation dominated by C3 pathway plants. The karst forms and their infill were formed before the Eocene transgression, which shows unequivocally that the Tatra Mts. were subjected to karstification at that time.
    Źródło:
    Geological Quarterly; 2016, 60, 2; 291-300
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Geochemiczny zapis diagenezy szczątków kostnych z Jaskini Deszczowej (Wyżyna Częstochowska)
    Geochemical record of diagenesis of bone remains fromDeszczowa Cave (Częstochowa Upland)
    Autorzy:
    Krajcarz, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2066279.pdf
    Data publikacji:
    2010
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    diageneza szczątków kostnych
    osady jaskiniowe
    czwartorzęd
    Polska
    Deszczowa Jaskinia
    bone diagenesis
    cave sediments
    Quaternary
    Polska
    Deszczowa Cave
    Źródło:
    Przegląd Geologiczny; 2010, 58, 2; 163-172
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Stratigraphy and palaeoenvironment of Stajna Cave (southern Poland) with regard to habitation of the site by Neanderthals
    Autorzy:
    Żarski, M.
    Winter, H.
    Nadachowski, A.
    Urbanowski, M.
    Socha, P.
    Kenig, K.
    Marcinkowski, B.
    Krzemińska, E.
    Stefaniak, K.
    Nowaczewska, W.
    Marciszak, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2060379.pdf
    Data publikacji:
    2017
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Stajnia Cave
    Neanderthal
    Vistulian
    palaeoenvironment
    Częstochowa Upland
    Opis:
    The Stajnia Cave is one of the most important archaeological sites due to the finds of the first remains of Neanderthals in Poland, and several tens of thousands of flint artefacts from the Middle Palaeolithic. Based on geological, geochemical, palaeobotanical, palaeozoological, archaeological and isotope analyses, coupled with absolute age determinations (OSL, U-Th and C14), 15 lithostratigraphic layers were distinguished and palaeoenvironmental conditions during the sedimentation of these beds were determined. The cave loams accumulated through weathering, aeolian and fluvial processes. Their age may be correlated with an interval from the Early Glacial to the Late Pleniglacial of the Visulian (Weichselian) Glaciation. Archaeological relics related to the Neanderthals have been discovered in layer D with an absolute age of about 52,000–45,000 years BP and correlated with MIS 3 – the Middle Plenivistulian (Interplenivistulian). Climate oscillations in the Vistulian are reflected by the type of the sediments and their physical-chemical features, allowing determining warmer interstadial and colder stadial periods. Generally, the climate was cold, characteristic of tundra areas with a typical vegetation and fauna, and with the mean temperature of the warmest month not exceeding 12°C. Based on multi-proxy studies it can be concluded that from layer E1 upwards, the climate conditions became progressively drier. At that time, the climate was cold with continental features enhancing tundra domination. This conclusion is confirmed by palaeontological investigations and the record of stable oxygen isotopes in the teeth of reindeer. The studies have also indicated seasonal migration of reindeer on the tundra that surrounded the cave. Probably, short-term slight climate warmings occurred during the Middle Plenivistulian (Interplenivistulian).
    Źródło:
    Geological Quarterly; 2017, 61, 2; 350--369
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Jaskinie Polski - nowy internetowy serwis Centralnej Bazy Danych Geologicznych PIG-PIB
    The Caves of Poland – new internet service of Central Geological Database of the PGI-NRI
    Autorzy:
    Grodzicki, J.
    Machalska, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/2074835.pdf
    Data publikacji:
    2011
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    jaskinie
    geologia
    kartografia jaskiń
    hydrologia
    formacje jaskiniowe
    speleologia
    Polska
    caves
    geology
    biology
    cave cartography
    hydrology
    cave formations
    speleology
    Polska
    Opis:
    The Caves of Poland is a popular science internet service about Polish caves. It is based on first Polish open access database containing data on localization, geology, biology, hydrology and history of all Polish caves as well as their planes and cross-sections. As the new data from exploration and case studies appear, the database is continuously verified and supplemented. Project Caves of Poland is a result of collaboration between Polish Society of Friends of Earth Sciences (PTPNoZ) and Geoinformation Management PGI-NRI. The project has been carried out on request of theMinistry of the Environment and financed by the National Fund for Environment Protection and Water Management. The service Caves of Poland is run by the Central Geological Database of the PGI-NRI (http://jaskinie.pgi.gov.pl).
    Źródło:
    Przegląd Geologiczny; 2011, 59, 10; 678-680
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Variability in chemical composition of waters in the Zoloushka gypsum cave (Ukraine-Moldova) as a consequence of anthropogenic degradation of a karst aquifer
    Autorzy:
    Andreychouk, Viacheslav
    Różkowski, Jacek
    Jóźwiak, Krzysztof
    Powiązania:
    https://bibliotekanauki.pl/articles/2060096.pdf
    Data publikacji:
    2021
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    karst aquifer degradation
    gypsum karst
    water geochemistry
    Zoloushka Cave
    Opis:
    The Zoloushka Cave, with passages >90 km long and a volume of ~0.65 million m3, is among the largest gypsum caves in the world. The cave was opened in the course of gypsum excavation in a quarry in the village of Criva (Moldova) located just near the border with Ukraine. During the quarry exploitation, with the accompanying pumping of water, the groundwater table was lowered to the bottom part of the gypsum layer. As a result of the pumping, the karst aquifer within the cave labyrinth was fragmented into separate underground reservoirs controlled by the morphology of the karst system and its content of clay deposits. Currently, there are several dozen lakes in the cave with a varied hydrodynamic regime (relict lakes, lakes with direct and indirect hydraulic connection with the aquifer). Research was carried out in February 2020 to determine the degree of, and reasons for, the hydrogeochemical diversity of 10 selected lakes of various hydrodynamic types present in the cave. The degree of variability of the hydrogeochemical parameters of these lakes was found to depend on a number of factors, mainly: the hydrodynamic type of the cave lake resulting from the degree of its hydraulic connection with the aquifer; the geochemical environment of the lake; and anthropogenic influence. The autonomizing role of these factors is the modification (within individual lakes) of the hydrogeochemical context of the transit waters flowing through the cave system to the quarry.
    Źródło:
    Geological Quarterly; 2021, 65, 3; 65: 41
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Cryogenic carbonates and cryogenic speleothem damage in the Za Hájovnou Cave (Javoříčko Karst, Czech Republic)
    Autorzy:
    Žak, K.
    Lipták, V.
    Filippi, M.
    Orvošová, M.
    Hercman, H.
    Matouškova, Š.
    Powiązania:
    https://bibliotekanauki.pl/articles/2060084.pdf
    Data publikacji:
    2018
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    cryogenic cave carbonates
    speleothem damage
    Javoříčko Karst
    U-series dating
    Opis:
    A new locality of coarse-grained cryogenic cave carbonates has been found in the Za Hájovnou Cave in Javoříčko Karst in Central Moravia, Czech Republic. Crystals and crystal aggregates, usually up to 15 mm in size, form typical loose accumulations on the surface of large fallen limestone blocks and clays covering the bottoms of several cave chambers distant from the cave entrance. The cryogenic origin of the carbonates is supported by their mode of occurrence, specific crystal and aggregate morphology, and C and O stable isotope data. U-series dating of one sample of cryogenic carbonate (age 29.5 ±0.1 ka) indicated that a period of karst water freezing occurred in marine isotope stage (MIS) 3, within the Weichselian. The cave also hosts numerous examples of speleothem damage. As shown in this paper, some of these are clearly connected with freezing conditions and cave ice action.
    Źródło:
    Geological Quarterly; 2018, 62, 4; 829--839
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Clay minerals in cave sediments and terra rossa soils in the Montagnola Senese karst massif (Italy)
    Autorzy:
    Iacoviello, F.
    Martini, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/2060561.pdf
    Data publikacji:
    2013
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    cave sediments
    terra rossa
    clay minerals
    red mud
    Montagnola Senese
    Opis:
    Reddish mud-rich sediments are common in several karst areas, in the form of red surface soils and clastic cave infilling. The origin and significance of red surface soils have been largely debated over the last years, whilst clastic mud-rich sediments in cave environments have received less attention by geoscientists. The genetic relation between these two materials still remains uncertain. In fact, these sediments are mainly constituted by fine materials, therefore, their study has been generally focused on the clay fraction only.This paper compares the clay fraction of red surface soils and mud-rich cave sediments in the Montagnola Senese massif. Previous studies have demonstrated that in this area red cave muds originate from the erosion of the red surface soils and their consequent re-deposition in the cave environment. Despite these well-established genetic relations, notable differences in the clay fraction of these two materials have been recognized in the present study. These differences are likely to be attributable to the different grades of pedogenetic alteration that affected the two materials. This study demonstrates that the genetic relations between mud-rich cave sediments and red surface soils can be misinterpreted when the clay mineral fraction only is considered.
    Źródło:
    Geological Quarterly; 2013, 57, 3; 527--536
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Kształtowanie się chemizmu wód gipsowej jaskini Zołuszka (Ukraina, Mołdawia)
    Chemistry formation of the water in the Zoloushka gypsum cave (Ukraine, Moldova)
    Autorzy:
    Andrejczuk, W.
    Jóźwiak, K.
    Różkowski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/2063178.pdf
    Data publikacji:
    2009
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    kras gipsowy
    modelowanie hydrogeochemiczne
    jaskinia Zołuszka
    gypsum karst
    hydrogeochemical modelling
    Zoloushka cave
    Opis:
    Przedstawiono środowisko hydrogeologiczne krasu gipsowego w rejonie jaskini Zołuszka (pogranicze Ukrainy i Mołdawii). Celem badań wykonanych w lipcu 2008 r. było określenie chemizmu wód jezior jaskiniowych. Stwierdzono, że kształtuje się on w środowisku hydrogeochemicznym przejściowym. W ramach modelowania geochemicznego określono specjacje składników roztworu wodnego o wielkości wskaźnika nasycenia (SI) roztworu względem wybranych faz mineralnych. Chemizm wód został zrównoważony ze stężeniami O2 i CO2 w powietrzu jaskini. Wyniki badań hydrochemicznych i modelowe obrazują hydrogeochemiczną strefowość kompleksu wodonośnego drenowanego przez kamieniołom, warunkowaną budową geologiczną, warunkami krążenia oraz mikroklimatem jaskini. Wyróżniono anomalie przestrzenne związane ze zwiększonym zasilaniem ascenzyjnym z piętra wodonośnego kredy.
    The paper presents the results of the research of the Badenian gypsum karst hydrogeochemical environment in the area of the Zoloushka cave in Ukraine. The investigations were carried out in June 2008 with the main aim of determining mechanism of cave lake waters chemistry. It has been found that the chemical mechanism of these waters is formed in a transitional hydrogeochemical environment. On the basis of the results of a hydrogeochemical numerical model, some of the features such as the distribution of elements, molar concentrations and main speciation as well as saturation indices (SI) for the chosen mineral phases were calculated. The chemical mechanism of the water was balanced with concentrations of O2 and CO2 present in the air of the cave. The results of hydrogeochemical investigations and modeling show a clear hydrochemical zonation within the described hydrogeological complex drained by the quarry. This is related to the geological structure, flow conditions and the cave microclimate. Spatial anomalies connected with the increased upward flow from the Cretaceous aquifer have been distinguished.
    Źródło:
    Biuletyn Państwowego Instytutu Geologicznego; 2009, 436, z. 9/1; 9-16
    0867-6143
    Pojawia się w:
    Biuletyn Państwowego Instytutu Geologicznego
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Budowa geologiczna masywu Ciemniaka na podstawie danych z Jaskini Małej w Mułowej (Tatry Zachodnie)
    Geological structure of the Ciemniak Massif on the basis of data from the Mała Cave in Mułowa (Western TatraMts.)
    Autorzy:
    Szczygieł, J.
    Borowska, U.
    Jaglarz, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/2075153.pdf
    Data publikacji:
    2014
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    cave
    tectonics
    High-Tatric Unit
    Tatra Mts.
    jaskinia
    tektonika
    Wysokie Wierchy
    Tatry
    Opis:
    The Mała Cave in Mułowa has been explored to a depth of 555 m at the beginning of the 21th century. It makes a good opportunity to review the knowledge on the geological structure of the Ciemniak Massif. The geological research was performed in two main conduits of the cave. The Mała Cave in Mułowa developed in Lower and Middle Triassic carbonates belonging to the dziary Unit (CzerwoneWierchy Nappe – part of the High-Tatric Allochthon), as well as in marly shales of the Zabijak Formation and limestones of the Wysoka Turnia Limestone Formation belonging to the High-Tatric Autochthon. The cave is the second outcrop of the lower limb of the main syncline of the dziary Unit. It follows that the dziary Unit in the Ciemniak area is represented by a recumbent, open syncline with completely preserved both limbs. This syncline is open northtoward . The fold axes are subhorizontal and the axis surface is inclined ~37o N. From a depth of 300 m (below the entrance), the cave was formed at the contact of Cretaceous rocks belonging to the autochthonous cover and Triassic rocks of the dziary Unit.
    Źródło:
    Przegląd Geologiczny; 2014, 62, 7; 349--355
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Chronostratygrafia późnoczwartorzędowych klastycznych osadów jaskiniowych w Polsce w XIX i w XXI wieku - ile się zmieniło?
    Chronostratigraphy of Late Quaternary clastic cave sediments in Poland in 19th and 21st centuries - what has changed?
    Autorzy:
    Krajcarz, M. T.
    Powiązania:
    https://bibliotekanauki.pl/articles/2074926.pdf
    Data publikacji:
    2012
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Edouard Lartet
    stratygrafia
    geochronologia
    czwartorzęd
    osady jaskiniowe
    stratigraphy
    geochronology
    Quaternary
    cave filling
    Opis:
    In 21st century the chronostratigraphy of cave sediments is built on the basis of modern methods: sedimentological analysis, statistical analysis of palaeozoological data, radiometric and luminescence dating and many others. For the time of last 50 000 years the four geochronological units (or appropriate chronostratigraphic units) are usually proposed in Poland in the researches of cave sediments. They are: Interpleniglacial, Upper/Younger Pleniglacial, Late Glacial and Holocene. That scheme has over 150 years of evolution, and its origin was tied with biostratigraphical scheme built by Edouard Lartet in a middle of 19th century. Lartet's stratigraphy for the same period was also made of four units: Cave Bear Epoch, Mammoth and Wooly Rhinoceros Epoch, Reindeer Epoch and Auroch Epoch. Although basing on different methods and using different terminology, the two schemes – from the 19th and from 21st centuries – are similar and correlatabl
    Źródło:
    Przegląd Geologiczny; 2012, 60, 2; 85-88
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Jaskinia Raj jako obiekt geoturystyczny - z perspektywy półwiecza
    Raj Cave as a geotourist site - a half-century perspective
    Autorzy:
    Wróblewski, Paweł
    Wróblewski, Tymoteusz
    Powiązania:
    https://bibliotekanauki.pl/articles/20201289.pdf
    Data publikacji:
    2022
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    jaskinia pokazowa
    konserwacja przez komercjalizację
    geoturystyka
    show cave
    conservation by commercialization
    geotourism
    Opis:
    Developed in the Devonian limestones the Raj (Paradise) Cave, with the rich dripstone attire, located near the city of Kielce, was the first cave in Poland to be opened to the public in a modern way 50 years ago and thus the first geotouristic site in the Świętokrzyskie (Holy Cross) region. Unrestricted exploration soon after its discovery led to the destruction of some speleothems. That is why the cave entrance was closed and a decision to protect the cave by its commercialization was made. Archaeological excavations and geological and palaeontological investigations of the Pleistocene cave sediments were carried out duringthe preparation ofthe tourist route. Transforming the cave into a show cave allowed maintaining its intrinsic (scientific) and extrinsic (aesthetic) values. However, tourism has also put a negative impact on the cave (mechanical damages of the speleothems, lampenflora, contaminations). Therefore, the authors consider whether protection and public access represent two contrasting or rather complementary concepts and from this perspective make an attempt to assess the 50 years of geotourism in Raj Cave.
    Źródło:
    Przegląd Geologiczny; 2022, 70, 12; 853-863
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zjawiska krasowe w skałach metamorficznych w Masywie Śnieżnika (Sudety Wschodnie ): aktualny stan badań oraz znaczenie dla poznania ewolucji Sudetów w późnym kenozoiku
    Karst phenomena in metamorphic rocks of the Śnieżnik Massif (East Sudetes) : state-of-the-art and significance for tracing a Late-Cenozoic evolution of the Sudetes
    Autorzy:
    Sobczyk, A.
    Kasprzak, M.
    Marciszak, A.
    Stefaniak, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/2075543.pdf
    Data publikacji:
    2016
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    kras
    geneza jaskiń
    jaskinia paleontologiczna
    ewolucja krajobrazu
    neotektonika
    Sudety
    karst
    speleogenesis
    cave palaeontology
    landscape evolution
    neotectonics
    Sudetes
    Opis:
    The paper reviews the recent state ofstudies for karst phenomena on northern slopes of the Śnieżnik Massif, Krowiarki range and Zlote Mts in East Sudetes with particular reference to Biała Lądecka basin. Conflned spatial character of the d/ainagf basinand cave sites within allow a better understanding of landscape response to climate and tectonic proxies controlling landscape evolution at least since the end ofMiocene (Messinian). New karst passages discoveries from Niedźwiedzia Cave resulted in the recognition of several sites of allochthonous sediments deposited at different cave morphological levels up to 50 metres above Kleśnica river floor. Furthermore, a new model ofpolygenetic origin for some karst chambers in Niedźwiedzia Cave originating from karstification processes and mass-movements superimposed has been suggested. Presumably, it may be linked with neotectonic processes and/or climatic changes affecting East Sudetes during the Late Cenozoic.
    Źródło:
    Przegląd Geologiczny; 2016, 64, 9; 710--718
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Linearne ułożenie kości w suchym środowisku lądowym na podstawie aktualistycznych badań legowisk lisa pospolitego (Vulpes vulpes Linnaeus) w sztolniach w Potoku Senderkach, Roztocze Środkowe
    Linear orientation of bone remains in dry land environment based on actualistic researches of the red fox (Vulpes vulpes Linnaeus) dens in underground quarry atmines in Potok Senderki
    Autorzy:
    Krajcarz, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2074815.pdf
    Data publikacji:
    2010
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    paleontologia
    tafonomia kregowców
    legowisko drapieżnika
    nagromadzenie jaskiń
    ukształtowanie terenu
    paleontology
    vertebrate taphonomy
    carnivore den
    cave accumulation
    site formation
    Opis:
    The paper presents new data on origin of parallel orientation of modern assemblages of bone remains in dry, terrestrial environment, unaffected by any influence of hydraulic processes. The studies were carried out in the gallery no. 6 of ancient underground millstone quarry situated in forests near the Potok Senderki village, Central Roztocze Upland. The studied material included animal bone remains found in dry gallery, presently inhabited by red foxes (Vulpes vulpes L.). Azimuths of long bone axes as well as strike azimuths o vertical adit walls which confine occurrence of bone clusters, were measured using geological compass. The obtained results make it possible to conclude that linear parallel orientation of bone remains may occur in a dry, terrestrial environment. Such orientation of clusters is formed mainly due to repetitive movement of carnivores along vertical walls of the adit whereas no influence of hydraulic processes is needed here. The presence of a distinct, preferred orientation of the bones requires interaction of two specific factors: the place has to be inhabited by carnivorous animals for a long time (at least for a few months) and the corridor, along which animals move, has to be bounded by steep to vertical walls. Caves are particularly predisposed type of sites, where the occurrence of linear bone orientation may be expected. The studies were dealing with effects of actualistic processes but the described situation and the obtained conclusions may be valid in the case of fossil bone assemblages, for example those of the Pleistocene age.
    Źródło:
    Przegląd Geologiczny; 2010, 58, 9/2; 858-861
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wgłębna budowa geologiczna górnej części Wąwozu Kraków w świetle badań Jaskini Wysokiej – Za Siedmiu Progami, Tatry Zachodnie
    Subsurface geological structure of upper part of the Kraków Gorge based on studies of the Wysoka - Za Siedmiu Progami Cave, West Tatra Mts.
    Autorzy:
    Szczygieł, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2074935.pdf
    Data publikacji:
    2012
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    autochton wierchowej pokrywy osadowej
    model 3D
    jaskinia
    Tatry Zachodnie
    autochtonous Tatric sedimentary cover
    3D model
    cave
    Western Tatra Mts.
    Opis:
    Structural evolution of the autochtonous Tatric sedimentary cover is discussed on the basis of results of structural studies on the Wysoka - Za Siedmiu Progami Cave and 3D modeling of subsurface geological structure of upper part of the Kraków Gorge in theWestern Tatra Mts. The studies showed presence of three faults. The oldest fault was formed during the Late Cretaceous and rejuvenated in subsequent phases of deformations, as evidenced by multi-stage mineralization. Strike of that fault is meridian and of the two others - latitudinal. Dislocations and collapses corridors, and normal-slip movement parallel to the slope proves their activity during the Quaternary. The course of the Malmian-Neocomian and Urgonian boundary was also defined. On the west side of the studied area, the bedding is shaped in crest-like inverted syncline. Axis of the syncline plunges toward the north at the angle of 55 degrees to its crossing with the meridian fault. In lower limb of the root-hinge and at western side of the meridian fault the layers are arranged in the form of a wide anticline.
    Źródło:
    Przegląd Geologiczny; 2012, 60, 4; 232-238
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Geometryzacja form zjawisk krasowych na podstawie badań metodą georadarową
    Geometrization of karst phenomena based on GPR research
    Autorzy:
    Ortyl, Łukasz
    Powiązania:
    https://bibliotekanauki.pl/articles/2075956.pdf
    Data publikacji:
    2019
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    metoda georadarowa
    kras
    wapienie
    jaskinia
    pustki
    modelowanie danych
    naziemne skanowanie laserowe
    ground penetrating radar
    GPR
    karst
    limestones
    cave
    voids
    finite differential time domain
    FDTD
    terrestrial laser scanning
    TLS
    Opis:
    Recognition of subsoil in areas threatened with discontinuous deformation associated with the existence of natural and mining voids can be implemented by various geophysical methods. The purpose of such research, apart from confirming the existence of voids, is to determine their spatial extent. This is not a simple issue, regardless of the geophysical method used. This paper discusses the possibilities of geometrization of karst phenomenon localization using the ground penetrating radar (GPR) method by the example of a karst cave as a natural void. The area of data acquisition is located on limestone formations with numerous karstforms. The study object is the main hall of the karst cave with a height of up to 3 m, located at a depth of 3 to 7 m below the surface. Such location and shape of the subsurface structure made it possible for the author to perform a wide range of research. Their original aspects are presented in this paper. The shape of the hall was obtained using terrestrial laser scanning (TLS). The GPR data were obtained employing the 250 MHz shielded antenna that was directly positioned using a robotized total station with the option of automatic target tracking. Thus, the GPR and geodetic data were immediately achieved in a uniform coordinate system. The accuracy of the data obtained in this way is discussed in this paper. The author’s original algorithm for processing of GPR data into a point cloud is presented. Based on the results obtained, it was possible to compare the GPR signal, which represents the shape of the cave hall, in relation to its image in the form of a point cloud from terrestrial laser scanning. A unique part of this paper is the selection of filtration procedures and their parameters in optimal GPR data processing, which were widely discussed and documented in a way beyond the standard filtration procedures. A significant contribution is the analysis that was carried out on the data obtained in the field and on the model data generated using the finite difference method. Modeling was carried out for two wave sources: exploding reflector and point. The presented methodology and discrimination between the actual shape of the cave, GPR field data and model data made it possible for the author to draw many conclusions related to the possibilities of shape geometrization of the subsurface voids determined by the GPR method.
    Źródło:
    Przegląd Geologiczny; 2019, 67, 4; 252--269
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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