Wyniki wyszukiwania - BazTech

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Charakterystyka gruntów pochodzenia eolicznego z terenu miasta Rzeszowa

Skrzypczak Izabela, Kokoszka Wanda, Wilk Krzysztof

Inżynieria i Budownictwo

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2023

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R. 79, nr 1-2

51--54

PL

W artykule scharakteryzowano lessowe osady eoliczne Pogórza Karpackiego z rejonu Rzeszowa. Przedstawiono warunki geologiczne i fizjograficzne obszaru badań. Przeanalizowano właściwości fizykomechaniczne gruntu lessowego na podstawie lokalnych doświadczeń badawczych w nawiązaniu do litologii, stratygrafii i cech zapadowych podłoża. Sklasyfikowano badane grunty lessowe na podstawie parametrów uziarnienia i plastyczności.

EN

The article characterizes the loess aeolian deposits of the Carpathian Foothills from the Rzeszów region. Geological and physiographic conditions of the study area are presented. The physico-mechanical properties of the loess soil were analyzed on the basis of local research experience in relation to the lithology, stratigraphy and collapsing features of the subsoil. The investigated loess soils were classified on the basis of granulation and plasticity parameters.

2

Prevention of gas migration in the area of the Carpathian Foothills in the laboratory tests

Uliasz M., Kremieniewski M.

AGH Drilling, Oil, Gas

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2018

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Vol. 35, no. 1

19--30

EN

In the area of the Carpathian Foothills, gas exhalations are a frequently observed phenomenon. It is connected with the presence of many shallow gas horizons in the autochthonous Miocene. In addition, gas migration effect is intensified due to the complicated geological structure in this region. During drilling boreholes, one of the most important requirements is to ensure adequate tightness in the annular space. In connection with the above, laboratory tests were carried out in the Oil and Gas Institute - National Research Institute, whose aim was to assess the impact of applied drilling fluids on the degree of sealing the annular space on the contact hardened cement slurry - rock formation, for specific geological and technical conditions. The result of the conducted research work was a modification of the composition of washing fluids in terms of improving the efficiency of their impact on the wall of borehole and removal of mudcake formed by the drilling muds, as well as modification of cement slurry formulations by application appropriate additives to prevent gas migration. During research work have been indicated potential causes of gas migration from the annular space in the selected holes drilled in the Carpathian Foothills and preventive actions aimed at reduction gas migration and exhalation.

3

Ślady i przebieg dawnej sieci komunikacyjnej na progu Pogórza Karpackiego

Kroczak R.

Prace Komisji Krajobrazu Kulturowego

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2012

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nr 18

103--115

PL

Ewolucja sieci komunikacyjnej jest odzwierciedleniem przemian społecznych i gospodarczych zachodzących na Pogórzu Karpackim. Pierwotna sieć głównych szlaków komunikacyjnych uzależniona była ściśle od warunków terenowych. Wraz z rozwojem gospodarczym regionu i postępem technicznym zaczęto budować drogi na terenach wcześniej uznanych za niekorzystne. Nowe drogi poprowadzono blisko sieci osadniczej zlokalizowanej w dolinach. W efekcie najstarsze główne trakty wytyczone pierwotnie po wierzchowinach zostały zdegradowane do roli dojazdów do pól bądź całkowicie wyłączone z użytkowania. Występujące współcześnie w krajobrazie Pogórza opuszczone wcięcia drogowe starych szlaków są jedyny śladem dawnego układu komunikacyjnego.

EN

Road network evolution reflects social and economical transformation on Carpathians Foothills. Original network of main communication routes was strictly conditioned by the local relief. Along with economical and technological development new roads were built - on the areas previously considered as impassable. They were led along the valleys where the settlement was located. In effect the oldest main roads, which were originally led across the tophills, are today degraded to access roads or even completely excluded from use. Abandoned road cuts found today on foothills landscape are the traces of old communication network.

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Age correlation of loess with other Pleistocene deposits on the basis of TL and OSL dating

Fedorowicz S.

Geochronometria

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2007

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Vol. 27

27-32

EN

The author collected 26 samples from six loess profiles located in Poland and Ukraine and 16 samples from three galcigenic profiles in Lithuania. TL and OSL dates were obtained for the samples. The TL dates were calculated in the Gdańsk University laboratory and the OSL dates were obtained by the Institute of Physics Laboratory at the Silesian Technical University. The dating results were referred to the OSL = f(TL) chart. In respect of luminescent dating results, the Upper Vistulian loess shows a high similarity of TL and OSL dates. It means that loess formation took place in conditions conductive to ensure that solar radiation the grains were exposed to reduce the energy accumulated in them. The TL dates of Middle and Upper Vistulian loess are slightly older than the OSL dates. The largest discrepancies were found in soil sample dates. The analysis of glacigenic profile dates is not unambiguous. The fact that the TL dates are older than the OSL dates may mean that during deposition the conditions were not sufficiently conductive to reduce the energy stored earlier in the grains examined with the TL method. This time could have been sufficient to reduce the energy examined with the OSL method.

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Korelacja dat TL i OSL próbek z czterech profili lessowych Polski SE i SW

Fedorowicz S.

Przegląd Geologiczny

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2005

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Vol. 53, nr 11

1047-1050

EN

Nineteen samples were collected from four loess profiles: Dybawka, Tarnawce, Dankowice and Biały Kościół for purposes of TL and OSL dating. The samples were collected from loess, interstadial fossil soil, Eemian soil and Holocene soil. The results were presented in the form of TL=f (OSL) date chart. The majority of TL dates are older than OSL dates. The results of LMg luminescence dating run parallel to the straight line of equal ages. The chart shows a high similarity of TL and OSL dates. The results are consistent with the stratigraphic diagnosis. Loess grains frequently show an age heterogeneity (two or more OSL dates are provided for a single sample).

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Late Pleistocene loess-paleosol and vegetation successions at tarnawce (san river valley, carpathian foothills, Poland)

Komar M., Łanczont M.

Studia Quaternaria

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2002

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Vol. 19

27--36

EN

The Tarnawce 1 profile, which occurs in the marginal eastern part of the Polish Western Carpathians, contains loesses representing three last glacial cycles. In this paper we report the results of pollen analysis of the Eemian -Early Glacial pedocomplex and of the Lower pleni-Vistulian loesses with an interstadial paleosol. The pollen spectra of 22 samples were determined. The pollen diagram was divided into 7 local pollen assemblage zones (L PAZ). Interglacial climatic optimum was recorded with the Eemian type of vegetation in the T-4 zone. The coldest conditions occurred during the accumulation of loess, which separates the interglacial and interstadial soils.

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Dalszy rozwój prac poszukiwawczych na Przedgórzu Karpat

Karnkowski P.

Wiadomości Naftowe i Gazownicze

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1999

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R. 2, Nr 10 (18)

12-16

8

Złoża ropy naftowej i gazu ziemnego w Polsce i możliwości dalszych poszukiwań

Karnkowski P.

Wiadomości Naftowe i Gazownicze

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1998

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R. 1, Nr 1 (1)

3-8

9

Relief and deposits of erosional-denudational valleys in the Carpathian Foothill region – the Wiśnicz Foothill

Michno Anna, Maciejczyk Karolina

Studia Geomorphologica Carpatho-Balcanica

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2019/2020

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Vol. 53/54

113--136

EN

The paper discusses variances in the relief of erosional-denudational valleys that are scattered across the woodland areas of the threshold of the Carpathian foothill region – in the Wiśnicz Foothills. Relief in the study area was characterized via geomorphological mapping and analyses of cartographic materials such as a LIDAR DEM. The paper also discusses valley types and valley morphometry along with the diversity of morphogenetic processes occurring in the study area. Deposits forming the floors of the studied valleys were also characterized through the use of 12 geologic drilling sites. The resulting data included the deposit grain size range and degree of deposit sorting. In the section on the analysis of present-day relief and relief evolution, the research focuses on the joint action of landslides and fluvial erosion. The following sequence of valley types is discussed for the main valleys presented in the study: denudational trough or gully, active V-shaped valley, V-shaped valley with a flat accumulation floor – found near the mouth of the watercourse. Active V-shaped valleys are characterized by the presence of short but numerous valley sections featuring predominant downcutting erosion or small, local accumulation zones. In this case, the presence of these sections is determined by the intensity of landslides on hill slopes in the studied valley, influx of material from tributary valleys, erosional capacity of local streams, and the presence of woody or rock steps in stream channels. The characteristics of deposits composing valley floors, described in the present study, indicate large differences in deposition process energy and short-distance transport of mineral-type material in stream channels. Research has shown significant complexity of regional factors and local factors affecting the evolution of small erosional-denudational valleys in forested areas in the southern part of the Wiśnicz Foothills. The location of the study area in the Silesian unit overthrust associated with the presence of a visible morphologic threshold, the middle foothills threshold, leads to significant, local differences in elevation, high degree of hill slope fragmentation, high activity of morphogenetic processes, and also affects the impact of these processes on deposits forming the floor of the studied valley.