System of geological mapping in the Slovak Republic
|Location||International Geological Congress,oslo 2008|
|Author||Polak, Milan; Bezak, Vladimir|
|Holding Date||04 October 2008|
The Slovak Republic is located in the Western Carpathians montain range. Geological mapping in the Western Carpathians has. Ffundamental geological mapping has been secured by the Dionz ٹtúr State Institute of Geology in Bratislava.
The climax of production of geological maps of the first period was a complete edition of synoptical maps 1:200 000 at the beginning of 60-ies of the last century. In the next period the centre of gravity was shifted to systematic geological maping of the territory of the Slovak Republic (SR) in scale 1:25 000. Mapping is organized in the individual regions, which are given by the particular morphology of Slovakia (alternation of mountain ranges and depressions and/or lowlands). On the basis of these maps a regional map 1:50 000 is compiled and edited by press together with book explanations for public using. So far the major part of the SR territory is covered by regional geological maps in scale 1:50 000.
On the basis of maps 1:50 000 a new synthetizing General geological map of the SR 1:200 000 were compiled, which should solve many interregional problems that emerged during the long period of mapping. This map is presented in poster session of this Congress. Besides the above mentioned fundamental and regional maps the Dionz ٹtúr Institute of Geology also compiles synoptical and thematic maps in scale 1:500 000 and/or 1:1 000 000 (Geologial map of the SR, Geological map of the Western Carpathians and adjacent territories, Tectonic map of the SR, Map of the Quaternary), further maps of frontier areas in international cooperation and purpose maps for the needs of applied geology (mainly bases for traffic underground constructions, refuse dumps, waterworks, valuation of water sources, geothermal energy, raw materials, etc.).
With regard to the fact that regional maps take rise in a relatively long diapason, they also have various statement values. Every map becomes obsolete approximately in 15-20 years and information in it requires more preciseness and actualization. The project Digital geological maps of the SR 1:50 000, mainly removes technical problems conected with older maps (deformed topographic base, transformation into digital form with database). Unsolved geological problems have to be solved by further field investigation.
It necessary to stress the need of continuous geological research and maping, mainly on a territory so extremely complicated geogically and morphologically, as are the Western Carpathians. Each map is only an aproximation of the geological structure of the territory, which more or less approaches the reality and in the given time corresponds to the degree of knowledge, to the possibilities of research methods and is always charged with some portion of subjectivity. Therefore we must understand geological mapping as a never ending process of gaining more and more precise information on the geological sructure of the territory under study.