Pisarska-Jamroży, M., Woronko, B., Woźniak, P.P., Rosentau, A., Hang, T., Steffen, H., Steffen, R., 2024. Deformation structures as key hints for interpretation of ice sheet dynamics – A case study from northeastern Estonia. Quaternary Science Reviews 108788.
- Aseri tectonic zone was reactivated during/shortly after the Pandivere phase (14.2–13.8 ka). Seismogenic liquefaction caused three seismites development.
- Oscillations of the ice-sheet margin caused folding of glaciolacustrine sediments as well as faulting, fracturing and water-escape structures on the stoss (compressional) side of folds.
- Propagating upwards water-escape structures suggest their development in a proglacial marginal and/or submarginal setting.
- Two new types of water-escape structures are recognised: mushroom-like injection structures and a chimney-shaped set of injection structures, both linked to proglacial marginal and/or submarginal settings.
Świątek, S., Belzyt S., Pisarska-Jamroży, M., Woronko, B., 2023. Sedimentary records of liquefaction: implications from field studies. Journal of Geophysical Research: Earth Surface 128, e2023JF007152.
- Liquefaction-induced SSDS were divided into active and passive concave-up structures and active and passive concave-down structures (144 samples were investigated).
- The maximum content of clay in sediment prone to liquefaction cannot exceed 14%, but only with a significant content of coarser fractions (silt and sand).
- The content of silt is the main factor for deformation processes, initiating the further development of all deformation structures.
- Mobilisation of the silt fraction during liquefaction and fluidisation initiates the further deforming process and facilitates the further mobilisation of sand grains, especially in the case of concave-up structures (e.g., injection features). In concave-up structure sediments, the share of the silt fraction subjected to liquefaction must be significant in relation to the very fine- and fine-grained sand.
McCalpin, J., Ferrario, F., Figueiredo, P., Livio, F., Grützner, Ch., Pisarska-Jamroży, M., Quigley, M., Reicherter, K., Rockwell, T., Štěpančíková, P., Táboříki, P., 2023. New developments in onshore paleoseismic methods, and their impact on Quaternary tectonic studies. Quaternary International 664, 59-76.
- New trends in Quaternary tectonics, new technologies and interpretations; the major technological advances have been in remote sensing, e.g., unpiloted aerial vehicles (drones); airborne laser scanning (lidar); terrestrial laser scanning; 3D topographic surveys from Structure-from-Motion; and satellite geodesy such as D-InSAR.
- Advances in dating Quaternary deposits, including single-grain luminescence dating and portable optically-stimulated luminescence dating.
- Geophysical surveys as a common component of neotectonic investigations, permitting a more formal, 3D integration of subsurface data with surface data.
Pisarska-Jamroży, M., Belzyt, S., Börner, A., Hoffmann, G., Kenzler, M., Rother, H., Steffen, R. Steffen, H., 2022. Late Pleistocene earthquakes imprinted on glaciolacustrine sediments on Gnitz Peninsula (Usedom Island, NE Germany). Quaternary Science Reviews 296, 107807.
- Four seismites in glaciolacustrine sediments (23.2 – 14.6ka).
- Trigger mechanism: GIA during MIS 2.
- Liquefaction and re-liquefaction traces.
- Re-liquefaction features: (1) disintegration of larger pseudonodules into smaller ones, (2) reorientation of SSDS, and (3) development of the second generation of injection structures infilled by massive silt and small-scale pseudonodules.
- Palaeosurfaces with erosional features as a tool in the determination of the number of deformation events.
Woźniak, P.P., Belzyt, S., Pisarska-Jamroży, M., Woronko, B., Lamsters, K., Nartišs, M., Bitinas, A., 2021. Liquefaction and re-liquefaction of sediments induced by uneven loading and glacigenic earthquakes: implications of results from the Latvian Baltic Sea coast. Sedimentary Geology 421, 105944.
- Seven seismites in shallow marine bay sediments (30.5±1.8 – 26.3±1.5ka).
- Trigger mechanisms: uneven loading and glacial earthquakes during MIS 2.
- Sedimentological traces of initial liquefaction and re-liquefaction processes.
Re-liquefaction features: two different generations of pseudonodules and injection structures; clastic injection pipes that incorporate, cut, rotate and displace sediments deformed by the initial liquefaction; disrupted load casts.
Belzyt, S., Pisarska-Jamroży, M., Bitinas, A., Woronko, B., Phillips, E.R., Piotrowski, J.A., Jusienė, A., 2021. Repetitive Late Pleistocene soft-sediment deformation by seismicity-induced liquefaction in north-western Lithuania. Sedimentology 68, 3033-3056.
- Ten seismites in lacustrine sediments (111.9±7.8ka – 98.7±7.6ka).
- Trigger mechanism: GIA during MIS 5.
- At least seven recurrent earthquakes separated by periods of tectonic tranquillity, erosion, and deposition.
- Palaeosurfaces with erosional features as a tool in the determination of the number of deformation events.
Bronikowska, M., Pisarska-Jamroży, M., Van Loon, A.J., 2021. First attempt to model numerically seismically-induced soft-sediment deformation structures – a comparison with field examples. Geological Quarterly 65, 60.
- Model of seismic S-wave with six different vertical velocities, ranging from 1.6 to 2.6 m·s–1, passing through sediments with varying densities and porosities in a sedimentary succession from the surface down to a depth of 10 m.
- The S-wave velocity influences the depth at which the seismite originates.
- Experimentally produced seismic SSDS, such as load casts, flame structures, injection structures, and clastic volcanoes.
- The higher the porosity of sediments, the more complex the geometry of the SSDS becomes.
Van Loon, A.J., Pisarska-Jamroży, M., Woronko, B., 2020. Sedimentological distinction in glacigenic sediments between load casts induced by periglacial processes from those induced by seismic shocks. Geological Quarterly 64, 626-640.
- Seismically-induced load structures tend to occur, in contrast to periglacial load structures, in well-defined layers (seismites) with sharp boundaries.
- Seismic load structures tend to show gradual horizontal changes in their size and complexity, whereas periglacial load structures do not.
- Periglacial load structures may occur in a more or less regular pattern, whereas seismically-induced load structures tend to occur in a less regular pattern.
Pisarska-Jamroży, M., Van Loon, A.J., Roman, M., Mleczak, M., 2019. Enigmatic gravity-flow deposits at Ujście (western Poland), triggered by earthquakes (as evidenced by seismites) caused by Saalian glacioisostatic crustal rebound. Geomorphology 326, 239-251.
- Two seismites in glaciolacustrine sediments (171±9.8 – 173±1.6ka).
- Trigger mechanisms: GIA (probably post Odranian) during MIS 6.
Pisarska-Jamroży, M., Belzyt, S., Bitinas, A., Jusienė, A., Woronko, B., 2019. Seismic shocks, periglacial conditions and glacitectonics as causes of the deformation of a Pleistocene meandering river succession in central Lithuania. Baltica 32, 63-77.
- Two seismites in a meandering river succession (22.4±1.2 – 22.6±1.4ka).
- Fluvial sediments of the meandering pra-Dubysa River, which existed in the Late Glacial, were consecutively (1) exposed to periglacial conditions and affected by (2) liquefaction phenomena and (3) glaciotectonic processes during the LGM.
- Trigger of seismites: GIA or glacial earthquakes.
Pisarska-Jamroży, M., Woźniak, P.P., 2019. Debris flow and glacioisostatic-induced soft-sediment deformation structures in a Pleistocene glaciolacustrine fan: The southern Baltic Sea coast, Poland. Geomorphology 326, 225-238.
Criteria to recognize SSDS of seismic-origin in glaciolacustrine fans: (1) sandwich-like layers with SSDS (deformed layers sandwiched between undeformed layers), (2) density inversion in sediments with load structures and flame structures caused by liquefaction, (3) liquefaction-induced structures such as blob-like structure, (4) the coexistence of plastic and brittle deformations in a single lithofacies, (5) the coexistence of contractional and extensional faults in the sedimentary succession, (6) the coexistence of upright buckle folds and domino-like geometry reverse faults, (7) the coexistence of folds with variably oriented axial surfaces in a single lithofacies.
Pisarska-Jamroży, M., Belzyt, S, Börner, A., Hoffmann, G., Hüneke, H., Kenzler, M., Obst, K., Rother, H., Steffen, H., Steffen, R., Van Loon, A.J., 2019. The sea cliff at Dwasieden: Soft-sediment deformation structures triggered by glacial isostatic adjustment in front of the advancing Scandinavian Ice Sheet. E&G Quaternary Science Journal 2, 61-64.
- Two seismites in glaciolacustrine sediments.
- Trigger mechanisms: GIA (reactivated Schaabe fault).
Pisarska-Jamroży, M., Belzyt, S., Börner, A., Hoffmann, G., Hüneke, H., Kenzler, M., Obst, K., Rother, H., Van Loon, A.J., 2018. Evidence from seismites for glacio-isostatically induced crustal faulting in front of an advancing land-ice mass (Rügen Island, SW Baltic Sea). Tectonophysics 745, 338-348.
- Two seismites in glaciolacustrine sediments (22.6±1.9 – 19±2.3ka).
- trigger mechanism: GIA during MIS 2.
- Flexural isostatic response of the Earth’s crust as a consequence of the ice load during ice advance was accompanied by earthquakes probably due to local re-activation of pre-existing faults.
Woźniak, P.P., Pisarska-Jamroży, M., 2018. Debris flows with soft-sediment clasts in a Pleistocene glaciolacustrine fan (Gdańsk Bay, Poland). Catena 165, 178-191.
- Silty and sandy glaciolacustrine sediments of fan with numerous debris flows interrupted the autochthonous sedimentation.
- Two trigger mechanisms might be held responsible for the debris flows on the subaqueous fan: the instability of the slope caused by the high sedimentation rate, and seismic shocks related to the GIA.
Van Loon A.J., Pisarska-Jamroży M., Nartišs M., Krievāns M., Soms J., 2016. Seismites resulting from high‑frequency, high‑magnitude earthquakes in Latvia caused by Late Glacial glacio‑isostatic uplift. Journal of Palaeogeography 5, 363-380.
- Seven seismites in Valmiera in glaciolacustrine sediments deposited at 14.5 ka.
- Twelve seismites in Rakuti in Late Weichselian glaciolacustrine sediments.
- Trigger mechanisms: GIA.
Van Loon, A.J., Pisarska-Jamroży, M., 2014. Sedimentological evidence of Pleistocene earthquakes in NW Poland induced by glacioisostatic rebound. Sedimentary Geology 300, 1-10.
- Two seismites in Warthanian / Eemian lacustrine sediments
- Trigger mechanisms: GIA at the end of the Warthanian