Based on the reinterpretation of gravimetric, magnetic, seismic and magnetotelluric studies, new features of the sub-Permian basement in the area between the Dolsk Fault and the Middle Odra Fault, SW Poland, are identified. Among numerous faults and lineaments indicated in the article, those limiting both the Wolsztyn–Pogorzela High and a positive anomaly in the Lower Silesian Basin, as well as the faults in the vicinity of the Odra River are particularly prominent. N-S oriented structural elements are also visible in the gravity image. One of them separates the Pogorzela High from the Wolsztyn High. In light of the obtained results, according to refraction seismic surveys, the Polish equivalent to the Mid-German Crystalline Rise is located farther north from commonly accepted position within the Middle Odra Metamorphic Complex. The study results, supported by data from the neighboring area of Germany, may be important for further prospecting for sediment-hosted Cu and other metal deposits. The reprocessing of archival geophysical data using method of effective reflection coefficients (ERC) enabled the creation of more accurate structural model of ore series within the area of the Nowa Sól deposit in SW Poland. In terms of mineral resource prospects, this creates the possibility of applying new results from the study area to the similar zones in the corresponding part of Germany, which is the area between the phyllite zone and the Harz Mountains hosting very diverse and rich mineralization.

Rosnące ceny fosforytów i nawozów fosforanowych, silna koncentracja producentów ograniczona do kilku państw na świecie, wyjątkowe znaczenie fosforu w rolnictwie, a dodatkowo brak możliwości jego substytucji to czynniki, które powodują, że fosforyty uznane zostały za surowce krytyczne. Alternatywą dla importu i sposobem na osiągnięcie bezpieczeństwa dostaw może być rozszerzenie i eksploatacja własnej bazy zasobowej. W Polsce fosforyty z północnego obrzeżenia Gór Świętokrzyskich wydobywane były metodą podziemną, której zaniechano od początku lat 70. XX wieku ze względu na brak opłacalności wydobycia. Jednakże w Polsce wschodniej i południowo-wschodniej występują płytko konkrecje fosforytowe wieku eoceńskiego, które mogą mieć lokalnie znaczenie złożowe, a wydobycie ich może odbywać się metodą odkrywkową. Ekonomika wydobycia w płytkich odkrywkach nie wymaga tak rygorystycznych parametrów granicznych dla złóż fosforytów jak obecnie obowiązujące, które dobrane są pod warunki eksploatacji metodą podziemną.
W publikacji autorzy przeanalizowali współczesne uwarunkowania opłacalności eksploatacji
złóż fosforytów, m.in., dynamikę zmian cen fosforytów, przegląd granicznych parametrów złożowych projektów fosforytowych na świecie i ekonomikę odkrywkowej eksploatacji kopaliny, gdzie jako punkt odniesienia (w Polsce) przyjęto kopalnię kruszyw o eksploatacji mieszanej (w części spod lustra wody). W efekcie zaproponowano dla eoceńskich fosforytów w Polsce nowe, graniczne parametry definiujące złoże i jego granice.

The protection of copper and silver ore resources in the Polish Lubuskie Province requires certain steps to be taken, the suggestions for which are presented in this article. It addresses both known and newly discovered ore deposits, as well as prospective areas and places of ongoing exploration, which throughout the paper are collectively recognized as potential Cu-Ag mining areas. The example of Lubuskie Province was chosen as an exceptional region with multiple known areas of copper and silver ore potential, but no active mining operations until now. The study focuses on the nature and location of all potential mining areas in Lubuskie Province, and subsequently suggests the means of their protection which can be implemented today, as well as in the future. Such means should be introduced by way of new or amended legal regulations. Certain major changes to Polish law are necessary to provide sufficient protection of both currently known, as well as possible future deposits, against such use of land which would prevent the extraction of their resources. The study shows that the legal regulations effective in Poland today are insufficient or too vague, as they do not include any provisions concerning prospective resources, as well as areas of active mineral exploration, instead focusing solely on officially registered mineral deposits. Therefore, the proposals of new solutions providing better protection of all potential Cu-Ag mining areas are presented in this article.

The Northern Copper Belt is located in south-western Poland, a region well known for its copper and silver occurrences of varying significance. This area also includes the abandoned mines of the North-Sudetic Trough (Old Copper District), as well as the currently active New Copper District in the southern part of the Fore- Sudetic Monocline. The vast exploration programme of Miedzi Copper Corp. initiated in 2011 in the northern, deeper part of the Fore Sudetic Monocline provided new data about the deeper parts of this geological unit, located north of the known deposits. A number of prospective areas with Cu-Ag mineralization were investigated, which ultimately resulted in the discovery of three new Cu-Ag deposits. Both the prospective areas and the documented deposits form the so-called Northern Copper Belt, which as a whole has high potential for the identification of new ore deposits and an increase in resources. A description of these three new deposits is provided along with characteristics of the areas of their possible extension, and the additional prospective areas with hypothetical and speculative resources. The new deposits are compared to other Polish Cu-Ag ore deposits, with an emphasis on differences in their geological structure and mineralogy. The paper also presents a brief summary of the applied new exploration tools which have led to this discovery.