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    Article • Acta Geologica Polonica, March 2024, Polish Academy of Sciences Chancellery

    Professor Marek Widera

  2. Cancellidium intergraniferum (R. Potonié & S.C.D. Sah) G. Worobiec & E. Worobiec, comb. nov. from the Miocene of Poland, with remarks on the fossil history and palaeoecological potential of Cancellidium

    Article • Palynology, February 2024, Taylor & Francis

    Professor Marek Widera

  3. Cenozoic tectonic evolution of the main lignite-rich grabens in Poland. Part 1. Tectonic stages

    Article • Acta Geologica Polonica, February 2024, Polish Academy of Sciences Chancellery

    Professor Marek Widera

  4. Four in one: a new crevasse-splay complex in the middle Miocene of central Poland

    Article • Annales Societatis Geologorum Poloniae, January 2024, Polskie Towarzystwo Geologiczne - Polish Geological Society

    Professor Marek Widera

  5. O ujednoliceniu terminologii osadów drobnoziarnistych i zlodowaceń – zainicjowanie dyskusji

    Article • Przegląd Geologiczny, December 2023, Polish Geological Institute

    Professor Marek Widera

  6. A comparative study of the oxide and elemental composition of ash from lignite burned at various temperatures – Konin Lignite Mine, Central Poland

    Article • Gospodarka Surowcami Mineralnymi - Mineral Resources Management, July 2023, Polish Academy of Sciences Chancellery

    Professor Marek Widera

  7. Paleogene–Neogene tectonic evolution of the lignite-rich Szamotuły Graben

    Article • Acta Geologica Polonica, July 2023, Polish Academy of Sciences Chancellery

    Professor Marek Widera

  8. Distinct types of crevasse splays formed in the area of Middle Miocene mires, central Poland: Insights from geological mapping and facies analysis

    Article • Sedimentary Geology, January 2023, Elsevier

    Professor Marek Widera

  9. Reconstruction of the sedimentary environment of phytogenic deposits in the Tomisławice opencast mine (Konin Region, central Poland)

    Article • Geological Quarterly, December 2022, Polish Geological Institute

    Professor Marek Widera

  10. Origin of clastic partings and their impact on ash yield in mined lignite: A case study from middle Miocene of central Poland

    Article • Journal of Cleaner Production, September 2022, Elsevier

    Professor Marek Widera

  11. Iron-bearing phases affecting the colour of upper Neogene clayey sediments from Dymaczewo Stare, west-central Poland

    Article • Geologos, August 2022, De Gruyter

    Professor Marek Widera

  12. Wpływ przerostów piaszczystych w węglu brunatnym na działalność górniczą – przykład ze złoża „Pątnów IV” (okolice Konina) w środkowej Polsce

    Article • Przegląd Geologiczny, June 2022, Polish Geological Institute

    Professor Marek Widera

  13. Geological and palaeogeographical peculiarities of the Adamów Graben area, central Poland

    Article • Geologos, April 2022, De Gruyter

    Professor Marek Widera

  14. Palaeoenvironment of the middle Miocene wetlands at Drzewce, Konin region, central Poland

    Article • Annales Societatis Geologorum Poloniae, January 2022, Polskie Towarzystwo Geologiczne - Polish Geological Society

    Professor Marek Widera

  15. Terrestrial-aquatic wood-inhabiting ascomycete Potamomyces from the Miocene of Poland

    Article • Acta Palaeontologica Polonica, January 2022, Polska Akademia Nauk Instytut Paleobiologii (Institute of Paleobiology, Polish Academy of Sciences)

    Professor Marek Widera

  16. Ancient and modern anastomosing rivers: insights from sedimentological and geomorphological case studies of the Triassic, Neogene and Holocene of Poland

    Article • Geological Quarterly, November 2021, Polish Geological Institute

    Professor Marek Widera

  17. Tectonic-climatic interactions during changes of depositional environments in the Carpathian foreland: An example from the Neogene of central Poland

    Article • Acta Geologica Polonica, November 2021, Polish Academy of Sciences Chancellery

    Professor Marek Widera

  18. Middle Miocene wetland fungi from the Adamów Lignite Mine, central Poland

    Article • Historical Biology, July 2021, Taylor & Francis

    Professor Marek Widera

  19. Palaeoenvironmental reconstruction of the Konin Basin (central Poland) during lignite accumulation linked to the mid-Miocene climate optimum

    Article • Palaeogeography Palaeoclimatology Palaeoecology, April 2021, Elsevier

    Professor Marek Widera

  20. Vegetation response to environmental changes based on palynological research on the Middle Miocene lignite at the Jóźwin IIB open-cast mine (Konin region, central Poland)

    Article • Annales Societatis Geologorum Poloniae, January 2021, Polskie Towarzystwo Geologiczne - Polish Geological Society

    Professor Marek Widera

  21. Tectonic and sedimentary deformational structures within the first Mid-Polish lignite seam – Konin Basin, central Poland

    Article • IOP Conference Series Earth and Environmental Science, December 2020, Institute of Physics Publishing

    Professor Marek Widera

  22. Slump folds within mid-Miocene crevasse-splay deposits: a unique example from the Tomisławice lignite opencast mine in central Poland

    Article • Geological Quarterly, September 2020, Polish Geological Institute

    Professor Marek Widera

  23. Is the Złoczew lignite deposit geologically suitable for the first underground gasification installation in Poland?

    Article • Geologos, August 2020, De Gruyter

    Professor Marek Widera

  24. Architektura i geneza iłów w górnym poziomie węgli brunatnych formacji poznańskiej (środkowy miocen) – odkrywka Tomisławice k. Konina w środkowej Polsce

    Article • Przegląd Geologiczny, June 2020, Polish Geological Institute

    Professor Marek Widera

  25. Anastomosing-to-meandering transitional river in sedimentary record: A case study from the Neogene of central Poland

    Article • Sedimentary Geology, May 2020, Elsevier

    Professor Marek Widera

  26. Petrological and geochemical characteristics of xylites and associated lipids from the First Lusatian lignite seam (Konin Basin, Poland): implications for floral sources, decomposition and environmental conditions

    Article • Organic Geochemistry, May 2020, Elsevier

    Professor Marek Widera

  27. New Insights Into the Genesis of the “Poznań Clays” – Upper Neogene of Poland

    Article • Civil And Environmental Engineering Reports, March 2020, De Gruyter

    Professor Marek Widera

  28. Composition of lipids from the First Lusatian lignite seam of the Konin Basin (Poland): Relationships with vegetation, climate and carbon cycling during the mid-Miocene Climatic Optimum

    Article • Organic Geochemistry, December 2019, Elsevier

    Professor Marek Widera

  29. Middle Miocene palynoflora from the Adamów lignite deposit, central Poland

    Article • Palynology, November 2019, Taylor & Francis

    Professor Marek Widera

  30. Various Genetic Types of End Moraines in the City of Poznań and Its Close Vicinity, Central-Western Poland

    Article • Civil And Environmental Engineering Reports, September 2019, De Gruyter

    Professor Marek Widera

  31. Seismically induced soft-sediment deformation in crevasse-splay microdelta deposits (Middle Miocene, central Poland) – reply

    Article • Geological Quarterly, June 2019, Polish Geological Institute

    Professor Marek Widera

  32. Sedimentary Facies, Processes and Paleochannel Pattern of an Anastomosing River System: An Example from the Upper Neogene of Central Poland

    Article • Journal of Sedimentary Research, June 2019, Society for Sedimentary Geology

    Professor Marek Widera

  33. The interpretative significance of ripple-derived sedimentary structures within an upper Neogene fluvial succession of central Poland

    Article • Geologos, April 2019, De Gruyter

    Professor Marek Widera

  34. Seismically-induced soft-sediment deformation in crevasse-splay microdelta deposits (Mid-Miocene, central Poland)

    Article • Geological Quarterly, March 2019, Polish Geological Institute

    Professor Marek Widera

  35. What can be learned about the deposition and compaction of peat from the Miocene lignite seam exposed in the Chłapowo Cliff on the Polish coast of the Baltic Sea?

    Article • Geology Geophysics & Environment, January 2019, AGHU University of Science and Technology Press

    Professor Marek Widera

  36. Glaciotectonically Deformed Lignite Deposits In The Area Between Łagówek And Sieniawa, Western Poland

    Article • Civil And Environmental Engineering Reports, March 2018, De Gruyter

    Professor Marek Widera

  37. Tectonic and Glaciotectonic Deformations in the Areas of Polish Lignite Deposits

    Article • Civil And Environmental Engineering Reports, March 2018, De Gruyter

    Professor Marek Widera

  38. Sedimentary breccia formed atop a Miocene crevasse-splay succession in central Poland

    Article • Sedimentary Geology, October 2017, Elsevier

    Professor Marek Widera

  39. A Miocene anastomosing river system in the area of Konin Lignite Mine, central Poland

    Article • Annales Societatis Geologorum Poloniae, January 2017, Polskie Towarzystwo Geologiczne - Polish Geological Society

    Professor Marek Widera

  40. Lignite mining and electricity generation in Poland: The current state and future prospects

    Article • Energy Policy, May 2016, Elsevier

    Professor Marek Widera

  41. Depositional environments of overbank sedimentation in the lignite-bearing Grey Clays Member: New evidence from Middle Miocene deposits of central Poland

    Article • Sedimentary Geology, April 2016, Elsevier

    Professor Marek Widera

  42. Genetic classification of Polish lignite deposits: A review

    Article • International Journal of Coal Geology, March 2016, Elsevier

    Professor Marek Widera

  43. An overview of lithotype associations of Miocene lignite seams exploited in Poland

    Article • Geologos, January 2016, De Gruyter

    Professor Marek Widera

  44. Characteristics and origin of deformation structures within lignite seams – a case study from Polish opencast mines

    Article • Geological Quarterly, December 2015, Polish Geological Institute

    Professor Marek Widera

  45. Compaction of lignite: a review of methods and results

    Article • Acta Geologica Polonica, January 2015, De Gruyter

    Professor Marek Widera

  46. Lignite cleat studies from the first Middle-Polish (first Lusatian) lignite seam in central Poland

    Article • International Journal of Coal Geology, September 2014, Elsevier

    Professor Marek Widera

  47. What are cleats? Preliminary studies from the Konin lignite mine, Miocene of central Poland

    Article • Geologos, January 2014, De Gruyter

    Professor Marek Widera

  48. Anthropogenic mineral deposits in Wielkopolska lignite mines – current state of research

    Article • Gospodarka Surowcami Mineralnymi - Mineral Resources Management, January 2014, De Gruyter

    Professor Marek Widera

  49. Changes of the lignite seam architecture — A case study from Polish lignite deposits

    Article • International Journal of Coal Geology, July 2013, Elsevier

    Professor Marek Widera

  50. Macroscopic lithotype characterisation of the 1st Middle-Polish (1st Lusatian) Lignite Seam in the Miocene of central Poland

    Article • Geologos, January 2012, De Gruyter

    Professor Marek Widera

  51. Stages of the Cenozoic tectonics in central Poland: examples from selected grabens [Phasen der känozoischen Tektonik im Polnischen Tiefl and: Ausgewählte Beispiele aus dem Braunkohle-Becken.]

    Article • Zeitschrift der Deutschen Gesellschaft für Geowissenschaften, June 2011, Schweizerbart

    Professor Marek Widera

  52. Biomarker and stable carbon isotope systematics of fossil wood from the second Lusatian lignite seam of the Lubstów deposit (Poland)

    Article • Organic Geochemistry, November 2007, Elsevier

    Professor Marek Widera, Reinhard Sachsenhofer

  53. From peat bog to lignite seam: a new method to calculate the consolidation coefficient of lignite seams, Wielkopolska region in central Poland

    Article • International Journal of Earth Sciences, November 2006, Springer Science + Business Media

    Professor Marek Widera