Dr hab. Jacek Pawlak

Position: Associate Professor 

Research interests:

  • Paleoclimatology - Studies on the climate of Holocene and Pleistocene on base of isotopic analysis of secondary carbonates
  • Geology of cave sediments
  • Isotopic geochemistry 
  • Geochronology 230Th/234U
  • Computational methods - Neural networks, cluster analysis, genetic algorithm, Monte Carlo method, probabilistic methods
     

Address:
Instytut Nauk Geologicznych Polskiej Akademii Nauk 
Institute of Geological Sciences, Polish Academy of Sciences
Ośrodek Badawczy w Warszawie - Research Centre in Warsaw
Twarda 51/55, 00-818 Warszawa, POLAND 

Tel.: (+48) 22 6978-712
E-mail:  dzeq@twarda.pan.pl

Google Scholar  ORCID  Scopus  ResearchGate
 

Education:

2022 - Habilitation, Institute of Geological Sciences, Polish Academy of Sciences
2012 - Ph.D., Institute of Geological Sciences, Polish Academy of Sciences
2005 - M.Sc., Faculty of Geology, University of Warsaw
 

Professional career:

Since 2022 - Associate Professor, Institute of Geological Sciences, Polish Academy of Sciences
Until 2022 - Assistant Professor, Institute of Geological Sciences, Polish Academy of Sciences
 

Developed software:

  • MOD-AGE – Age – depth model for U-Th, 14C, 210Pb dates
  • Stronter – application of probabilistic methods in isotope strontium stratigraphy using Bayesian theory
  • GenCorr – Correlation of isotopes records  
     

Publications:

  • Jacek Pawlak, Helena Hercman, Michał Gąsiorowski, Petr Pruner, Marcin Błaszczyk, Paula Sierpień, Šárka Matoušková, Šimon Kdýr, Petr Schnabl, Nadja Zupan Hajna, Andrej Mihevc, Pavel Bosák, 2024. Matuyama/Brunhes magnetic reversal recorded in flowstone from the Račiška pečina Cave (Slovenia), Quaternary International, Volumes 686–687, Pages 4-17, https://doi.org/10.1016/j.quaint.2023.05.002
  • Pawlak, J. 2021. The speleothem oxygen record as a proxy for thermal or moisture changes: a case study of multiproxy records from MIS 5–MIS 6 speleothems from the Demänová Cave system, Clim. Past, 17, 1051–1064, https://doi.org/10.5194/cp-17-1051-2021,
  • Pawlak, J., Błaszczyk, M., Hercman, H. & Matoušková, Š. 2021: Palaeoenvironmental conditions during MIS 6/MIS 5 transition recorded in speleothems from the Tatra Mountains. Boreas, Vol. 50, pp. 224–241. https://doi.org/10.1111/bor.12472. ISSN 0300-9483.
  • Pawlak,J., Hercman, H., Sierpień, P., Pruner, P., Gąsiorowski, M., Mihevc, A. ... Wach, B. 2020. Estimation of the durations of breaks in deposition – Speleothem case study. Geochronometria, 47(1), 154-170. https://doi.org/10.2478/geochr-2020-0022
  • Pawlak, J., Błaszczyk, M., Hercman, H., Matoušková, Š. 2019. A continuous stable isotope record of last interglacial age from the Bulgarian Cave Orlova Chuka. Geochronometria, 46(1), 87-101. https://doi.org/10.1515/geochr-2015-0107
  • Pawlak, J., Hercman, H. 2016. Numerical correlation of speleothem stable isotope records using a genetic algorithm, Quaternary Geochronology,  Volume 33, Pages 1-12, https://doi.org/10.1016/j.quageo.2015.12.005
  • Jelonek, M., Pawlak, J., Pereswiet-Soltan, A. Zelinka, J. 2025. Growth rate of cave ice based on 14C dating of fossil bats as a palaeoenvironmental proxy for the last 1300 years in the Western Carpathians. The Holocene
  • Kicińska, D., Pawlak, J., Stienss, J., 2023. An attempt to identify source areas of clastic deposits from selected caves of the Prokletije Mountains (Montenegro): a mineralogical and U-series geochemistry approach. International Journal of Speleology, 52(2), 109-122. https://doi.org/10.5038/1827-806X.52.2.2473
  • Sierpień, P., Pawlak, J., Hercman, H., Pruner, P., Zupan Hajna, N., Mihevc, A., Bosák, P. 2021. Flowstones from the Račiška Pečina Cave (SW Slovenia) Record 3.2-Ma-Long History. Geochronometria, 48(1), 31-45. https://doi.org/10.2478/geochr-2021-0004
  • Nadja Zupan Hajna, Andrej Mihevc, Pavel Bosák, Petr Pruner, Helena Hercman, Ivan Horáček, Jan Wagner, Stanislav Čermák, Jacek Pawlak, Paula Sierpień, Šimon Kdýr, Lucie Juřičková, Astrid Švara, 2021. Pliocene to Holocene chronostratigraphy and palaeoenvironmental records from cave sediments: Račiška pečina section (SW Slovenia), Quaternary International, Volumes 605–606, https://doi.org/10.1016/j.quaint.2021.02.035
  • Błaszczyk M, Hercman H, Pawlak J, Szczygieł J. 2021. Paleoclimatic reconstruction in the Tatra Mountains of the western Carpathians during MIS 9–7 inferred from a multiproxy speleothem record. Quaternary Research. 99:290-304. doi:10.1017/qua.2020.69
  • Hercman, H., Gąsiorowski, M., Pawlak, J., Błaszczyk, M., Gradziński, M., Matoušková, Š., Zawidzki, P., & Bella, P. 2020. Atmospheric circulation and the differentiation of precipitation sources during the Holocene inferred from five stalagmite records from Demänová Cave System (Central Europe). The Holocene, 30(6), 834-846. https://doi.org/10.1177/0959683620902224
  • Bella, Pavel; Pavel Bosák; Petr Mikysek; Juraj Littva; Helena Hercman;  Jacek Pawlak. 2019. Multi-phased hypogene speleogenesis in a marginal horst structure of the Malé Karpaty Mountains, Slovakia. International Journal of Speleology, 48: 203-220. https://doi.org/10.5038/1827-806X.48.2.2265
  • Błaszczyk, M., Hercman, H., Pawlak, J., Gąsiorowski, M., Matoušková, Š., Aninowska, M. ... Tyc, A. 2018. Low to middle Pleistocene paleoclimatic record from the Kraków-Częstochowa Upland (Poland) based on isotopic and calcite fabrics analyses. Geochronometria, 45: 185-197. https://doi.org/10.1515/geochr-2015-0096
  • Hubert Wierzbowski, Robert Anczkiewicz, Jacek Pawlak, Mikhail A. Rogov, Anton B. Kuznetsov, 2017. Revised Middle–Upper Jurassic strontium isotope stratigraphy, Chemical Geology, Volume 466, Pages 239-255, https://doi.org/10.1016/j.chemgeo.2017.06.015
  • Franziska A. Lechleitner, Jens Fohlmeister, Cameron McIntyre, Lisa M. Baldini, Robert A. Jamieson, Helena Hercman, Michał Gąsiorowski, Jacek Pawlak, Krzysztof Stefaniak, Paweł Socha, Timothy I. Eglinton, James U.L. Baldini, 2016. A novel approach for construction of radiocarbon-based chronologies for speleothems, Quaternary Geochronology, Volume 35, Pages 54-66, https://doi.org/10.1016/j.quageo.2016.05.006
  • Jan Urban, Włodzimierz Margielewski, Helena Hercman, Karel Žák, Valentina Zernitska, Jacek Pawlak and Marzena Schejbal-Chwastek 2015. Dating of speleothems in non-karst caves - methodological aspects ating of speleothems in non-karst caves - methodological aspects and practical application, Polish Outer Carpathians case study. Zeitschrift für Geomorphologie, Vol. 59 (2015), Suppl. 1, 183-208 Article Stuttgart, 10.1127/zfg_suppl/2015/S-00180
  • Helena Hercman, Michał Gąsiorowski, Jacek Pawlak, 2014. Testing the MOD-AGE chronologies of lake sediment sequences dated by the 210Pb method, Quaternary Geochronology, Volume 22,Pages 155-162, https://doi.org/10.1016/j.quageo.2014.01.001.
  • H. Wierzbowski, R. Anczkiewicz, J. Bazarnik, J. Pawlak, 2012. Strontium isotope variations in Middle Jurassic (Late Bajocian–Callovian) seawater: Implications for Earth's tectonic activity and marine environments, Chemical Geology, Volume 334, Pages 171-181, https://doi.org/10.1016/j.chemgeo.2012.10.01
  • H. Hercman, J. Pawlak, 2012. MOD-AGE: An age-depth model construction algorithm, Quaternary Geochronology, Volume 12, Pages 1-10, https://doi.org/10.1016/j.quageo.2012.05.003