Geological Map of Poland, scale 1:200,000, Map B – Exposed Map (second edition)

Map B is a component, alongside Map A and the explanatory text, of each sheet of the Geological Map of Poland at 1:200,000 scale (MGP200k). It is a map without Quaternary deposits, known as an 'open' map (sub-Quaternary geological map). MGP200k is a serial map covering the entire territory of Poland, consisting of 77 map sheets. It reflects the current state of knowledge regarding the country's geological structure. It is used for economic and spatial planning, as well as the preliminary identification of mineral resource occurrences. It serves as a basis for conducting research and creating maps in the fields of regional geology, engineering geology, hydrogeology, geomorphology, and related studies at the same or similar scales. MGP200k is developed based on the Instruction for the Reambulation of the Geological Map of Poland at 1:200,000 scale (1st edition - 2004 and 2nd edition - 2009). Map B of the MGP200k is created based on compilation work and borehole analysis for a given area, geological sketches of 'open' sheets of the Detailed Geological Map of Poland at 1:50,000 scale (SMGP), incorporating current research results, regional studies, and available 3D models of the subsurface geological structure. It provides a synthetic overview of the geological structure of sub-Quaternary sediments. One MGP200k sheet covers up to 16 SMGP sheets. The compilation of Map B includes: the geological map with a legend of colors and symbols, geological cross-sections, lithostratigraphic profiles, a summary of borehole logs, and an index of the SMGP sheets used. The content of Map B primarily consists of the surfaces and boundaries of sub-Quaternary geological formations, tectonic and glaciotectonic elements, and isohypses of the sub-Quaternary surface. Common dictionaries have been adopted for the entire series: lithological, stratigraphic, genetic, landforms, and conventional symbols. MGP200k is developed digitally in a GIS environment using the PL-1992 coordinate system (EPSG: 2180). Data are made available as shapefiles, raster map sheet compositions, paper prints, and map services (e.g., WMS).