Szczecin Marginal Seas Webinars w marcu 2023
Serdecznie zapraszamy na pierwszą prezentację z cyklu Szczecin Marginal Seas Webinars w semestrze letnim 2022/2023.
Webinar odbędzie się 16 marca 2023 r. o godzinie 14:00 (CET).
Zapraszamy na wykład:
Late Cretaceous tectonic inversion within the S Baltic Sea – insight from regional seismic profile stretching between the West and the East European Platforms
Piotr Krzywiec1; Quong Nguyen2; Łukasz Słonka1; Michał Malinowski2; Regina Kramarska3; Niklas Ahlrichs4 , Christian Huebscher4
1 Institute of Geological Sciences, Polish Academy of Sciences, Warsaw, Poland
2 Institute of Geophysics, Polish Academy of Sciences, Warsaw, Poland
3 Polish Geological Institute, Gdańsk, Poland
4 Institute of Geophysics, University of Hamburg, Hamburg, Germany
to be presented by:
Prof. Dr. Piotr Krzywiec
Institute of Geological Sciences, Polish Academy of Sciences, Warsaw, Poland
Abstract
In 2016, 850 km of multichannel seismic reflection data of the BALTEC survey have been acquired offshore Poland within the transition zone between the East European Craton and the Paleozoic Platform. Acquired data, processed up to Kirchhoff pre-stack time migration, was integrated with other seismics available in this area and calibrated by deep and shallow wells. All this data provided new information regarding Late Cretaceous inversion i.e. the last major tectonic event that shaped geology of this area. It led to uplift of basement blocks, their localized erosion and formation of syn-inversion growth strata. This phase of geological evolution could be until now hardly resolved by industry seismic data due to limited shallow seismic imaging and very strong overprint of multiples. Within the SW Baltic Sea main structure formed during Late Cretaceous inversion is NW segment of the Mid-Polish Anticlinorium (MPA) that extends for over 1000 km from the vicinity of Bornholm towards the SE Poland and W Ukraine. Identified subtle thickness variations, progressive unconformities and contourites within the Upper Cretaceous succession document complex interplay of Late Cretaceous basin inversion, erosion and re-deposition. Seismic data from within the Bornholm-Darłowo fault zone located NE from the MPA imaged system of deeply rooted steep reverse faults and associated zones of prograding wedges that testify to complex depositional pattern controlled by transpression. Farther to the E, within the Ustka and Słupsk Blocks, Precambrian basement is overlain by Cambro-Silurian sedimentary cover. It is dissected by a system of steep, mostly reverse faults rooted in the deep basement. This fault system has been so far regarded as having been formed mostly in Paleozoic times, due to the Caledonian orogeny. As a consequence, Upper Cretaceous succession, locally present in this area, has been vaguely defined as a post-tectonic cover, locally onlapping uplifted Paleozoic blocks. Our results confirmed that, contrary to previous models, at least some of these deeply-rooted faults were active as a reverse faults during Late Cretaceous, in particular those faults that continue into the inverted Christianso Block farther to the North. It can be therefore unequivocally proved that large offshore blocks of Silurian and older rocks, located presently directly beneath the Cenozoic veneer, must have been at least partly covered by the Upper Cretaceous succession; then, they were uplifted during the widespread Late Cretaceous inversion. All these results prove that Late Cretaceous inversion in this part of Europe strongly affected also large areas located much farther towards the East than previously assumed.
Seminarium odbędzie się w formie hybrydowej, w sali 111 budynku Mickiewicza 16 i równolegle na platformie MS Teams.
Sala konferencyjna będzie otwarta od 13:30 (CET), ale seminarium rozpocznie się o 14:00 (CET).
Spotkanie Microsoft Teams.
Dołącz na swoim komputerze, aplikacji mobilnej lub innym urządzeniu.
Klinij by dołączyć do spotkania
Meeting ID: 385 247 943 203
Kod: bGmbe2
Szczecin Marginal Seas Webinars w styczniu
Zapraszamy na dodatkowe spotkanie semestru zimowego w ramach Szczecin Marginal Seas Webinar 26 stycznia 2023, o godzinie 41:00.
Zapraszamy na wykład:
Last Glacial Maximum lake sediments capture High Arctic surface ocean warming during Heinrich Event 2
prezentowany przez:
Dr. Willem G. M. van der Bilt
Department of Earth Sciences, University of Bergen,
Bjerknes Centre for Climate Research, Bergen, NO
Abstract
Throughout the Last Glacial period, widespread deposition of Ice Rafted Debris (IRD) marks phases of North Atlantic ice sheet instability during cold Stadial conditions. The causes for these so-called Heinrich Events (HEs) remain debated: while initially attributed to internal ice sheet dynamics, there is mounting evidence for an external ocean-climate forcing. In the latter scenario, ice rafting is thought to be driven by basal melt from a build-up of sub-surface heat in response to weakening ocean circulation. However, coeval shifts from perennial to seasonal sea ice conditions suggest that some heat may have escaped to the surface. We strengthen this notion, by presenting biomarker-based evidence for atmospheric warming from a unique Last Glacial Maximum (30-20 ka BP) lake sediment sequence from High Arctic Svalbard. Alkenone-derived changes in temperature (UK37) and hydroclimate (δD) indicate a rapid shift towards warmer surface conditions and more locally sourced precipitation at the onset of HE 2. These findings are supported by XRF evidence for lake water stratification and a shift towards n-alkane distributions indicative of less arid conditions. In conclusion, our data suggests that climate-forced Arctic ice sheet instability during HEs was triggered from below as well as above.
Seminarium odbędzie się w formie hybrydowej, w pokoju 111 budynku przy Mickiewicza 16 i równoleglena platformie MS Teams.
Pokój spotkania będzie otwarty od 13:30, a seminarium zacznie się o 14:00.
By dołączyć do spotkania użyj linku:
https://teams.microsoft.com/l/meetup-join/19%3a0ee21c3b364e4709810bc45b7fbb4284%40thread.tacv2/1674495333830?context=%7b%22Tid%22%3a%22af892dd6-4563-4455-9c05-a398a43f2362%22%2c%22Oid%22%3a%221e9df312-5fc1-4e40-bc0d-ab7f66ee7bd8%22%7d
ID spotkania: 360 349 589 998
Kod dostępu: mXMpCg
EMBracing the Ocean - dla artystów
European Marine Board (EMB) poszukuje dwóch nowych artystów do edycji 2023 – 2024 naszego programu rezydencji artystycznych „EMBracing the Ocean”. Gdy wkraczamy w trzeci rok Dekady Nauk o Oceanie na rzecz Zrównoważonego Rozwoju ONZ, potrzeba łączności ludzi z Oceanem jest ważniejsza niż kiedykolwiek. Program EMBracing the Ocean zapewnia dotacje w wysokości 10 000 EUR dla kreatywnych osób i grup na współtworzenie dzieł sztuki we współpracy z naukowcami zajmującymi się oceanami, aby poszerzyć zrozumienie wartości oceanu przez społeczeństwa i zainspirować szeroko zakrojone zmiany społeczne na rzecz zrównoważonego rozwoju oceanów.
Do programu można zgłaszać się do 20 lutego 2023 r. Szukamy kreatywnych osób lub grup reprezentujących różne dyscypliny twórcze. Komisja weźmie pod uwagę zarówno początkujących, jak i uznanych artystów. Pożądane jest wcześniejsze doświadczenie we współtworzeniu z naukowcami i/lub społecznościami oraz w pracy nad tematami zrównoważonego rozwoju. Zgłoszenia są mile widziane z całego świata i z szerokiego zakresu kreatywnych dyscyplin, w tym między innymi:
sztuki wizualne (np. rysunek, malarstwo, film, fotografia, rzeźba, sztuka cyfrowa, instalacja);
sztuki literackie (np. beletrystyka, dramat, poezja, opowiadanie historii);
sztuki sceniczne (np. taniec, muzyka, teatr); oraz
sztuki tradycyjnej i rodzimej.
Więcej informacji na temat naboru i sposobu aplikowania znajduje się na stronie EMB: https://www.marineboard.eu/emb-artist-residence-programme. W przypadku jakichkolwiek pytań prosimy o kontakt z Britt Alexander na adres Sekretariatu EMB (
Bylibyśmy wdzięczni za udostępnienie informacji oraz za interakcję i udostępnianie naszych postów w mediach społecznościowych:
Twitter: https://twitter.com/EMarineBoard/status/1612380375514226689?s=20&t=3g7czL-z6aSM_zZJffWvCg
Instagram: https://www.instagram.com/p/CnMHNXbLbyh/?utm_source=ig_web_copy_link
Linkedin: https://www.linkedin.com/feed/update/urn:li:activity:7018146103531307008
Facebook: https://www.facebook.com/photo?fbid=180961261205422&set=a.160064306628451
Program EMBracing the Ocean to działanie na rzecz Dekady Oceanu, wspierające społeczne wyzwanie, jakim jest inspirujący i angażujący Ocean. Program dodatkowo wspiera cele EU Mission: Restore our Ocean and Waters.
Szczecin Marginal Seas Webinars - styczeń
Serdecznie zapraszamy na ostatnią w tym semestrze zimowym prezentację z cyklu Szczecin Marginal Seas Webinars
na webinar, który odbędzie się 12 stycznia 2022 r. o godzinie 14:00 (CET).
Zapraszamy na wykład:
The fluvial pipeline: sediment and organic matter transfers in a lowland river – Rio Bermejo, Argentina
prezentowany przez
Prof. Dr. Niels Hovius
GFZ German Research Centre for Geosciences,
Institute of Geosciences, University of Potsdam, DE
Abstract
Niels Hovius, Marisa Repasch, Joel Scheingross, Sophia Dosch, Dirk Sachse
Geomorphology, GFZ German Research Centre for Geosciences, Potsdam and University of Potsdam
Rivers are vital links in source to sink systems, feeding quantities of solids and solutes to the coastline. By transferring sediment, organic matter and weathering products into geological sinks, rivers affect the distribution of loads on the lithosphere, and regulate global biogeochemical cycles. While upland rivers function primarily as matter sources, lowland rivers can have significant exchange of load with surrounding floodplains, transient storage and attendant biochemical transformations. As a result, lowland river systems act as filter and transformers of source signals complicating the interpretation of downstream fluxes. Key questions about the functioning of this filter include the frequency of matter exchange between river channel and floodplain, the transit time of river solids, the transformation and fate of matter in transient storage, and the difference between upland input and lowland output fluxes. We have used the special attributes of the Rio Bermejo in northern Argentina to address these questions. The Rio Bermejo drains a section of the eastern Andes to the Rio Paraguay, crossing an 800 km wide foreland. The lowland section of the river flows 1300 km without tributaries, making it one of the longest single channels on Earth. Over its length, the Rio Bermejo has little human interference, and the river system can be considered to have natural behavior. We have sampled the river at various locations during the high flow season of the South American monsoon and during the low flow season. Sediment, organic matter and water samples were analysed for heavy minerals, cosmogenic radio-nuclides, organic matter isotopic composition and molecular make up, and water major element content and stable isotope composition. The seminar will highlight some of the major insights gleaned from this project.
Seminarium odbędzie się w formie hybrydowej, w sali 111 budynku Mickiewicza 16 oraz na platformie MS Teams.
Sala konferencyjna będzie otwarta od 13:30 (CET), ale seminarium rozpocznie się o 14:00 (CET).
By dołączyć do spotkania użyj link: https://teams.microsoft.com/l/meetup-join/19%3a0ee21c3b364e4709810bc45b7fbb4284%40thread.tacv2/1673253949655?context=%7b%22Tid%22%3a%22af892dd6-4563-4455-9c05-a398a43f2362%22%2c%22Oid%22%3a%221e9df312-5fc1-4e40-bc0d-ab7f66ee7bd8%22%7d
ID: 391 745 036 654
Kod dostępu: RgHpo7
Szczecin Marginal Seas Webinars: Extreme processes shaping coastal landscapes in rapidly deglaciating Arctic
Zapraszamy na trzecią prezentację tego zimowego semestru w ramach Szczecin Marginal Seas Webinars
na webinar w dniu 15 grudnia 2022, o 14:00 pm.
Dołączcie do webinaru o tytule:
Extreme processes shaping coastal landscapes in rapidly deglaciating Arctic
prezentowanego przez
Prof. Dr. Mateusz C. Strzelecki
Centrum Badań Regionów Zimnych im. Alfreda Jahna, Instytut Geografii i Rozwoju Regionalnego, Uniwersytet Wrocławski, Polska
Abstract
The observed acceleration of Arctic coastal change is mostly associated with a decreasing sea ice extent and duration that increases shoreline exposure to storm wave energy and erosion. Loss of sea ice is only one of the processes that transform Arctic coastal zone. The functioning of the present‐day Arctic coastal system is also influenced by permafrost degradation, storm‐surge floodings or increased sediment supply from river catchments. Majority of those changes have a strong impact on circum‐polar Arctic coastal communities and their historical (including heritage) and modern infrastructure. Compared with recent research advances obtained along ice-rich permafrost sections of the Alaskan, Yukon and Siberian coastlines, less work has been done on the coastal environments of High Arctic archipelagos including Svalbard, Novaya Zemlya, Franz Joseph Land, the Canadian Arctic Archipelago and Greenland. Probably the key important feature distinguishing these environments is the strong and combined imprint of previous continental glaciations and modern glacial activity on coastal morphodynamics, which classifies these coasts as paraglacial. Set against this context, the overarching aim of my talk will be to characterise the response of a coastal systems, developing in Svalbard and Greenland, to post‐LIA climatic conditions that were characterised by enhanced paraglacial processes, in turn triggered by rapid deglaciation.
- River Mouths Systems and Marginal Seas - Natural Drivers and Human Impact
- InterRidge 2022 Webinar
- Kobiecy obraz morza
- Wykład w ramach cyklu Szczecin Marginal Seas Webinar
- Konferencja River Mouths Systems and Marginal Seas - Natural Drivers and Human Impact
- Seminarium naukowe: Ecology of aquatic ecosystems: coupling of physical chemical and biological processes