Wyniki wyszukiwania - BazTech

1

Wstępne dane o nowym wystąpieniu różowego korundu (rubinu) w Sławniowicach w Sudetach Wschodnich

Łobos Krzysztof, Pawlik Tomasz

Przegląd Geologiczny

|

2021

|

Vol. 69, nr 3

169--173

EN

Grains of light pink and pink-violet corundum (ruby) were recognized in the alluvia of the Maruszka stream cutting the deposit of Sławniowice marble. The grains reach a size of up to 3 mm. They are usually slightly rounded or angular and sometimes barrel-shaped. X-ray powder diffraction and energy-dispersive X-ray spectroscopy analysis of corundum were performed. Mineral inclusions in the corundum grains have been also identified.

2

Application of the ERT to recognise the geological structure of frost‑riven cliffs localised in the Skalny Potok (Hrubý Jeseník Mts.)

Stan-Kłeczek Iwona, Stan Dominika

Acta Geophysica

|

2019

|

Vol. 67, no. 6

1759--1764

EN

In the area of the Skalni Potok Nature Reserve (Hrubý Jesenik), studies of gneissic cliffs were carried out to determine the role of lithology in the process of their formation. The research included geometric measurements of vertical discontinuity zones of selected rock outcrops and the electrical resistivity tomography (ERT) measurements of strongly weathered subsurface layers. As a result of the measurement, the orientation of the main crack systems (NW–SE and NE–SW) responsible for the location of cliffs within the Skalni Potok Valley was obtained. In addition, the main crack directions for the gneiss occurring in the studied mountain region were identified. Interpretation of the ERT models allowed to characterise the structure of the rock mass, including the reach of the rainwater infiltration level and the depth of the weathering front.

3

Przydatność pomiarów georadarowych i analiz geomorfometrycznych do rozpoznania wewnętrznej struktury płytkich osuwisk : na przykładzie góry Średniak w Masywie Śnieżnika, Sudety Wschodnie

Makoś M., Sobczyk A.

Przegląd Geologiczny

|

2018

|

Vol. 66, nr 10

636--647

EN

The paper reviews an application of non-destructive electromagnetic imaging of shallow bedrock and landslide colluvium horizons performed with ground-penetrating radar (GPR) technique on mass movement-affected mountain slope. We used a non-shielded 52 MHz GPR equipment to study an area of a shallow translational landslide, which developed on steeply inclined gneissic bedrock on Mt. Sredniak slopes (1210 m a.s.l.) in the Śnieżnik Massif. This landslide originated at the boundary zone between intact bedrock comprising Proterozoic gneisses and uppermost slope cover, as a result of continuous rainfall during July of 2011. Furthermore, to better understand and examine a landslide area on Mt. Sredniak slopes we also applied structural geological and geomorphological methods. The GPR analyses resulted in high-resolution imaging of internal slope structure and gravitational deposit architecture in the range of 0.5-5 m below surface level. Electromagnetic sounding performed directly above the landslide source area elucidated a set of bedrock discontinuities with a possible direct impact on water aggregation and migration during the rainfall episodes. Furthermore, a GPR profile performed in a landslide toe area, showed subsurface reflection horizons to be correlated with a colluvium/bedrock transitional zone and internal heterogeneous architecture of colluvial deposits. Ground-penetrating radar proved to be both powerful and an easy-maintained 'on-site' method for steep mountain slope analysis, with a potential for high-resolution imaging of shallow-seated gravitational slope deformations.

4

Przemiany krajobrazu wsi górskich w Sudetach Wschodnich

Bryś K., Ojrzyńska H.

Prace Komisji Krajobrazu Kulturowego

|

2010

|

nr 14

157--173

PL

Przedstawiono przemiany krajobrazu wsi Bielice, Nowy Gierałtów i Goszów (Sudety Wschodnie). Uwarunkowania fizjograficzne, funkcje wsi oraz odległość od miasta wpłynęły na kierunek ewolucji krajobrazu w obliczu zmian polityczno-narodowościowych i ustrojowych po II wojnie światowej. Przemiany dotyczyły głównie odejścia od rolniczego użytkowania ziem, a w efekcie nasilenia wtórnej sukcesji leśnej. Powojenny regres w rozwoju przestrzennym wsi ustąpił wraz z silnym rozwojem funkcji turystycznej. Wprowadzenie obcej stylistycznie zabudowy letniskowej, willowej i obiektów turystycznych doprowadziło do zaburzenia historycznych układów wsi, a w miejscowościach podmiejskich do stopniowego zaniku ich krajobrazowej odrębności. W oparciu o idee umiarkowanego i zrównoważonego rozwoju przestrzennego zaproponowano sposoby przeciwdziałania niekorzystnym trendom zmian krajobrazowych.

EN

There are shown landscape’s changes in the villages of Bielice, Nowy Gierałtów and Goszów (Eastern Sudetes). In the face of political-national and constitutional changes after II World War the physiographical determinants, function of villages and distance from the town have had an influence on landscape’s evolution direction. Landscape’s changes have mainly concerned retiring from the agriculture land use and as a result intensify of repeated forest succession. Postwar regress in village’s spatial development have last years subsided together with intense growth of tourist function. Introduction of stylistic foreign summer-resort building, detached houses and tourist objects have caused disturbance of historical villages configuration and in suburban villages - their landscape autonomy loss. On the basis of moderate and sustainable spatial development ideas there were proposed how to counteract detrimental landscape’s changes trends.