scholarly journals Heterogeneity of folding in Zechstein (Upper Permian) salt deposits in the Kłodawa Salt Structure, central Poland

2014 ◽  
Author(s):  
Stanisław BURLIGA
Keyword(s):  
Upper Permian ◽  
Central Poland ◽  
Salt Structure ◽  
Permian Salt ◽  
Salt Deposits

USING A GEORADAR TO IDENTIFY POTENTIAL SOURCES OF GAS RISKS AND TO RECOGNIZE THE GEOLOGICAL STRUCTURE OF THE ZECHSTEIN OLDEST HALITE ROCK SALT DEPOSIT (NA1) AT THE POLKOWICE-SIEROSZOWICE MINE

2017 ◽  
pp. 35-46
Author(s):  
Tomasz Chrul ◽  
Waldemar Pawlik ◽  
Joanna Wrzosek
Keyword(s):  
Rock Salt ◽  
Hydrogen Sulphide ◽  
Geological Structure ◽  
Upper Permian ◽  
Salt Deposit ◽  
Potential Sources ◽  
Salt Deposits

The Polkowice-Sieroszowice Mine the KGHM Polska Miedź S.A. uses the georadar method to recognize the geological structure of the Zechstein (Upper Permian) Oldest Halite rock salt deposits (Na1). The incentive to use the georadar was the occurrence of a gas risk in mining excavations. This method is ideal for locating anhydrite blocks, that are potential sites of hydrogen sulphide accumulation, and is helpful in determining the top and base of the salt deposits. In the tests, 100 MHz and 30 MHz antennas were used, which reached the ranges of 40 m and 60 m and resolutions of 0.25 m and 1.0 m, respectively. The profiling with use of a georadar was performed in research boreholes and along the floors of excavation drifts.

scholarly journals Half a century of research on diatoms in athalassic habitats in central Poland

2015 ◽  
Vol 44 (1) ◽  
Author(s):  
Joanna Żelazna-Wieczorek ◽  
Rafał M. Olszyński ◽  
Paulina Nowicka-Krawczyk
Keyword(s):  
Temporal Change ◽  
Habitat Type ◽  
Chloride Concentration ◽  
Upper Permian ◽  
Central Poland ◽  
Wide Range ◽  
Salinity Levels ◽  
Zechstein Salt ◽  
Halophilic Species ◽  
The Village

AbstractPart of the geology in the Łódź province was formed during the Upper Permian period when rich Zechstein salt was deposited. Groundwater drains the deposits and flows out in the village of Pełczyska, creating a unique hydrogeological site in Central Poland. An inland, athalassic ecosystem can be a reference site for halophile microflora. The outflow with surrounding marshes has been an algological research site since 1964.The research reveals changes recorded in diatom assemblages from athalassic habitats, characterized by a wide range of salinity levels, and verifies the tolerance of taxa to salinity. The comparative analysis was based on the diatom material sampled in 1964-1965, 1992-1994 and on recently collected samples.The analysis revealed the temporal change in assemblages caused by a change in the chloride concentration, and the spatial change from one to another habitat type, characterized by varying salinity levels. The halophilic species in the studied habitats included e.g. Halamphora dominici, H. tenerrima, Navicula digitoconvergens, N. meulemansii, Staurophora salina. The analysis of changes allowed the verification of the species’ requirements and tolerance range to the salinity factor. Therefore, in the case of Fragilaria famelica and Halamphora sydowii, we propose a change in the halobion system classification.

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