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Wyświetlanie 1-3 z 3
Tytuł:
Regiony hydrogeotermalne na Niżu Polskim
Hydrogeothermal regions of the Polish Lowlands
Autorzy:
Nawrocki, Jerzy
Socha, Mariusz
Powiązania:
https://bibliotekanauki.pl/articles/2076230.pdf
Data publikacji:
2021
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
energia geotermalna
regionalizacja
mezozoiczny
Niziny Polskie
geothermal energy
regionalization
Mesozoic
Polish Lowland
Opis:
The paper provides a proprsal to divide the three main Mesozoic hydrogeothermal reservoirs of the Polish Lowlands into regions. The division is based primarily on reservoir efficacy in terms of using thermal waters for heating and recreation purposes. The presented validation of individual regions and sub-regions shows that only some parts of them have a medium or high heating potential. The heating and recreation potentials are limited in many places by the high mineralization of thermal waters.
Źródło:
Przegląd Geologiczny; 2021, 69, 9; 578--593
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characterisation of potholes formed on bedrock sandstones at Loei Dun, Phetchabun Geopark, Thailand
Autorzy:
Singtuen, Vimoltip
Junjuer, Thitaree
Powiązania:
https://bibliotekanauki.pl/articles/2204353.pdf
Data publikacji:
2022
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
geomorphology
landforms
geotourism
lithic arenite
geoheritage
Mesozoic
Nam Phong Formation
geomorfologia
ukształtowanie terenu
geoturystyka
piasowiec lity
geodziedzictwo
mezozoiczny
Opis:
Phetchabun National Geopark comprises varied geosites; one of the fluvial bedrock landforms distinguished here is Loei Dun. This shows many potholes in Mesozoic sandstone of the Nam Phong Formation (Khorat Group). A genetic study of the occurrence of the Loei Dun potholes lends it a higher geoheritage value. For the present study we did fieldwork and carried out petrographical and geotechnical analyses so as to classify and characterise the potholes and consider geotourism potentials. Petrographically, the bedrock sandstone is a lithic arenite which consists of 82-96 percent very fine to coarse, well-sorted subangular sand with low sphericity and calcite cementation. Our geotechnical analysis of the bedrock sandstone suggests that pothole occurrence may be linked to low rock strength and slake durability index with high rock absorption and porosity at Loei Dun. Field studies confirmed the impact of other factors such as joints/faults, fluvial conditions and biological weathering. There are five types of pothole, viz., simple ones, potholes with external furrows, compound potholes, breached potholes and lateral ones. The present study adds educational value to the Loei Dun geosite at Phetchabun Geoparks and cultural and economic aspects can be further strengthened through the development of geotourism in the area.
Źródło:
Geologos; 2022, 28, 1; 39--50
1426-8981
2080-6574
Pojawia się w:
Geologos
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Regionalizacja tektoniczna Polski-Polska południowa (blok górnośląski i blok małopolski)
Tectonic subdivision of Poland: southern Poland (Upper Silesian Block and Małopolska Block)
Autorzy:
Buła, Z.
Żaba, J.
Habryn, R.
Powiązania:
https://bibliotekanauki.pl/articles/2074564.pdf
Data publikacji:
2008
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
regionalizacja tektoniczna
blok górnośląski
Brunovistulicum
blok małopolski
plan podpermsko-mezozoiczny
jednostki tektoniczne
regional subdivision
Brunovistulikum
Upper Silesian Block
Małopolska Block
sub-Permian-Mesozoic paleosurface
tectonic units
Opis:
The attempt to divide the Upper Silesian Block and the Małopolska Block into tectonic units has been based on a general map at scale of 1:1000000, without Permian-Mesozoic and Cenozoic strata. Cartographic, general and monographic works regarding formation of Precambrian basement of both of the blocks have been discussed and presented, and data concerning development of sedimentation, tectonics, and structure of the Paleozoic cover of the blocks were the background for the suggested division. The Upper Silesian Block is a part of a larger unit determined as the Brunovistulicum, which together with the Brno Block are entirely located within the borders of the Czech Republic. The Brunovistulicum and the Małopolska Block vary in formation of Precambrian basement and covering Paleozoic formations, what proves different paleogeographical-facial and paleotectonic development. Current data do not allow determining their southern range, where both units are within the range of the orogeny of the Outer Carpathians and quite possibly in the range of the Inner Carpathians. The boundary of the Brunovistulicum and the Małopolska Block along the part between Lubliniec and Cracow and farther to the vicinity of Bochnia and Nowy Sącz is relatively well defined and documented. It is a narrow Cracow-Lubliniec fault zone, approximately 500 m wide, cutting and moving all rock series of the Precambrian and the Paleozoic. The fault zone of the Odra River probably forms its NW continuation. The following tectonic units have been distinguished in the Upper Silesian Block: 1) Moravian-Silesian Fold-and-Thrust Belt, 2) Upper Silesian Fold Zone, 3) Upper Silesian Trough, 4) Bielsko-Biała Dome, 5) Rzeszotary Horst, 6) Liplas Graben. There is only one tectonic unit distinguished in the Małopolska Block-Kielce Fold Belt, dipping towards NW-SE, along the NE boundary of the block. Paleozoic formations building the unit represent thrust fault structure. In this case, the Kielce Fold Belt significantly varies from the other parts of the Małopolska Block, where Paleozoic formations build numerous small block structures.
Źródło:
Przegląd Geologiczny; 2008, 56, 10; 912-920
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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