Piotr Krzywiec

Polish Academy of Sciences | PAN · Institute of Geological Sciences

The southern Baltic Sea is a peculiar area, where the Sorgenfrei‐Tornquist Zone (STZ), stretching from Bornholm into the North Sea, connects to the Teisseyre‐Tornquist Zone (TTZ) that continues SE up to the Black Sea. In this study, we show the structure and evolution of this controversially debated area, both on crustal and basin scale, by using t...

This paper presents the results of seismostratigraphic interpretation of the Upper Cretaceous sedimentary succession preserved within two synclines flanking the Szamotuły diapir in northwestern Poland. This succession is characterized by a complex Santonian–Campanian internal geometry characteristic of contourites – that is, deposits formed by cont...

Stanowisko Komitetu Nauk Geologicznych Polskiej Akademii Nauk w debacie klimatycznej Dziesięć lat temu Komitet Nauk Geologicznych PAN (KNG PAN) przedstawił swoje stanowisko w kwestii ocieplenia klimatu wskazując, że zmiany klimatu w geologicznej skali czasu są zjawiskiem naturalnym, a ocieplenie obserwowane współcześnie należy powściągliwie interpr...

Our study of boreholes, seismic survey and magnetic data from the region between the Baltic Basin and the Lublin Basin indicates the existence of numerous buried intrusions and effusive complexes, most of them unnoticed so far, together with a few igneous massifs. They are of alkaline character and developed in a time span of c. 348 to 338 Ma. Deep...

The southern Baltic Sea is a peculiar area, where the Sorgenfrei-Tornquist Zone (STZ), stretching from Bornholm into the North Sea, connects to the Teisseyre-Tornquist Zone (TTZ) that continues SE up to the Black Sea. In this study, we show the structure and evolution of this controversially debated area, both on crustal and basin scale, by using t...

The Polish Basin formed the eastern part of the Central European Basin System. During the Late Cretaceous, its axial, most subsiding part – the Mid-Polish Trough – underwent uplift, which consequently resulted in its inversion and transformation into the Mid-Polish Anticlinorium, with two adjacent synclinoria: the Kościerzyn–Puławy Synclinorium tow...

Helwing (1666-1748)-forgotten pioneer of geology and palaeontology on Polish territory. Prz. Geol., 70: 547-556. A b s t r a c t. Georg Andreas Helwing (1666-1748) spent most of his adult life as a Lutheran pastor in his native town of Wêgorzewo (Angerburg), currently in NW Poland. He was well educated, studied at several universities, focusing on...

The Polish Geological Society (PGS) was established on April 24, 1921. The seat of the PGS Board is in Kraków, as the Jagiellonian University in Kraków was the most active centre of geological sciences before Poland regained independence in 1918. For over 100 years, the main forms of the Society’s activity have been annual conferences in various pa...

In Europe, formation of the Palaeozoic Variscan orogenic belt, and the Mesozoic–Cenozoic Alpine–Carpathian orogenic belt led to a widespread inversion events within forelands of both orogenic domains. We used legacy 2-D seismic data together with the newly acquired 3-D seismic data that, for the first time, precisely imaged sub-Zechstein (i.e. sub-...

We demonstrate how lithological and mechanical stratification of Ediacaran–Carboniferous sedimentary package governs strain partitioning in the Lublin Basin (LB) which was incorporated in the marginal portion of the Variscan fold-and-thrust belt. Based on the geometry of seismic reflectors, the pre-Permian–Mesozoic sedimentary sequence was subdivid...

In Europe, formation of the Palaeozoic Variscan orogenic belt, and then the Mesozoic-Cenozoic Alpine-Carpathian orogenic belt led to a widespread inversion events within forelands of both orogenic domains. We used legacy 2D seismic data together with the newly acquired 3D seismic data that for the first time precisely imaged sub-Zechstein (i.e. sub...

Basin-scale salt flow and the evolution of salt structures in rift basins is mainly driven by sub- and supra-salt faulting and sedimentary loading. Crustal extension is often accompanied and followed by thermal subsidence leading to tilting of the graben flanks, which might induce an additional basinward-directed driver for salt tectonics. We desig...

Fossils have stirred the imagination globally for thousands of years, starting well before they were recognized as the remains of once-living organisms and proxies of former worlds. This volume samples the history of art about fossils and the visual conceptualization of their significance starting with biblical and mythological depictions, extendin...

Interpretation of the regional high-resolution seismic data of the PolandSPANTM survey in the Grudziądz-Polik area revealed a new depositional architecture of the Upper Cretaceous succession that differs substantially from the previously assumed layer-cake model, commonly applied to Permian-Mesozoic sequences. A previously unrecognized regional unc...

Basin-scale salt flow and the evolution of salt structures in rift basin is mainly driven by sub- and supra-salt faulting and sedimentary loading. Crustal extension is often accompanied and followed by thermal subsidence leading to tilting of the graben flanks, which might induce an additional basinward directed driver for salt tectonics. We design...

The geochemical data and the study of fluid inclusions in primary halite are invaluable sources of saline basin information. Most of the previous analyses of salt from the Carpathian area have been obtained by studying the halite samples collected from depths not exceeding 1000 m (i.e., from salt mine outcrops or boreholes). In this article, for th...

The Wieliczka salt mine, near Kraków in southern Poland, is a world-famous historical and modern destination for both geoscientists and tourists. Despite numerous publications, there is still a lack of consensus on the nature and origin of the large-scale folds as well as whether the small-scale structures represent tectonic or soft-sediment deform...

We provide a detailed description of a late Carboniferous fold-and-thrust belt in the Lublin Basin based on seismic lines, including new, high-resolution acquisitions, and legacy borehole and gravimetric data. A series of regional cross-sections integrate results of the joint seismic-borehole-gravimetric interpretation. Cross-section restoration pr...

The geometry and internal architecture of the Upper Jurassic carbonate depositional system in the epicontinental basin of central and western Europe and within the northern margin of the Tethyan shelf are hitherto only partly recognized, especially in areas with thick Cretaceous and younger cover such as the Miechów Trough. In such areas, seismic d...

The presented study is devoted to the subsurface Upper Jurassic carbonate buildups and surrounding stratified inter-buildup deposits in the hitherto less recognized area, in comparison with other parts of the northern Tethyan shelf in Poland and Europe. The study area is located within the present-day Miechów Trough, almost entirely covered by thic...

Geophysical and geological data from the eastern sector of the Central European Variscan belt are presented and reviewed in the regional tectonic context. Matched filtering of isostatic gravity, guided by results of spectral analysis, along with other derivatives of gravity and magnetic fields reveal a dominant WNW-ESE-trending pre-Permian structur...

Abstract. The geometry and internal architecture of the Upper Jurassic carbonate depositional system in the epicontinental basin of western and central Europe, and within the northern margin of the Tethyan shelf are hitherto only partly recognised, especially in areas with thick Cretaceous and younger cover such as the Miechów Trough. In such areas...

Modern techniques of geological and geophysical modelling are crucial methods of unravelling the structural evolution of sedimentary basins. The Lublin Basin recently was investigated extensively by means of high-quality seismic data calibrated by wells (Krzywiec et al., 2017a, b, 2018b; Tomaszczyk and Jarosiński, 2017). The present authors have fo...

The study area is located within the Miechów Trough, which forms SE part of the Szczecin-Łódź-Miechów Synclinorium that was formed during the Late Cretaceous-Paleogene inversion of the Permian-Mesozoic Polish Basin. In Jurassic times Miechów Trough was located within the transition zone between the epicontinental Polish Basin and the Tethyan basins...

We have characterized Late Devonian fracture systems in the northeastern part of the Lublin Basin in Poland using two independent approaches: (1) seismic data conditioning and volumetric attribute analysis and (2) structural restoration, geomechanical modeling, and fracture modeling. The study area was subjected to reverse faulting in the basement...

Our paper demonstrates how two-dimensional density models can deliver critical constraints that permit construction and validation of geological models in an underconstrained subcropped fold-and-thrust belt. As a case study, we use a newly discovered thrust-and-fold belt developed above the margin of the East European Craton (EEC) in SE Poland. A g...

The northern segments of the Carpathians, stretching between Limanowa (Poland) and Kosów (Ukraine), belonged to the most prolific hydrocarbon province in the world in the late nineteenth and early twentieth centuries. The earliest written accounts of natural occurrences of hydrocarbons in the Carpathians date back to the sixteenth century. In the e...

During the last decade a theory of peak oil/gas was discredited by development of diverse unconventional hydrocarbon fields. New concepts developed in US and Canada are now applied to numerous mature basins across the World. This includes Poland, characterized by mature exploration and systematic production decline. However, currently the concepts...