Forschungsliteratur: Germania Magna

Auf dieser Seite finden Sie eine Sammlung von Links zu wissenschaftlichen Veröffentlichungen, die für dieses Projekt relevant sind oder die dazu beitragen können, ein tieferes exemplarisches Verständnis über die Prozesse und Umstände zu erlangen, welche möglicherweise in einem Zusammenhang mit der hier vorgestellten Neuinterpretation der Germania Magna stehen. Dabei handelt es sich um Veröffentlichungen unterschiedlicher Forschungsbereiche.

Die Sammlung umfasst:

• Primärliteratur: Wissenschaftliche Veröffentlichungen, die die Ergebnisse neuer Forschung präsentieren.
• Sekundärliteratur: Wissenschaftliche Veröffentlichungen, die die Primärliteratur zusammenfassen, analysieren oder interpretieren.
• Vergleichende Literatur: Veröffentlichungen, die Ihnen exemplarisch ähnliche Prozesse und Umstände in anderen Kontexten aufzeigen.
• Weitere Ressourcen: Links zu Websites, Datenbanken und anderen Ressourcen, die für die Neuinterpretation relevant sein können.

Die folgenden Publikationen sollen dabei helfen, bestimmte Fragestellungen exemplarisch zu beantworten, welche in einem möglichen Zusammenhang mit den notwendigen Prozessen und Vorgängen stehen, die für eine umfangreiche Landschaftstransformation erforderlich sind. Hierzu zählen beispielsweise Überlegungen über tektonische Bruchereignisse und Rift-Systeme, mit entsprechender Auswirkung auf maritime Rutschungsereignisse und die Entstehung neuer Sedimentationsbecken.

Continuous record of Holocene sea-level changes and coastal development of the Kattegat island Læsø (4900 years BP to present)

19. August 202422. März 2024 von Sven Mildner

DOI http://dx.doi.org/10.37570/bgsd-2016-64-01 Læsø is the largest island of the Kattegat–Skagerrak region and exposes a vast array of relative sealevel (RSL) indicators, mainly raised beach ridges, swales, lagoons and saltmarshes. The physical environment of continuous glacial rebound, excessive supply of sediment, shallow surrounding waters, low amplitudes of near-shore waves, and micro-tidal conditions produced numerous sealevel proxies of both barrier coasts and saltmarshes. About 1200 RSL/age index points reflect not only short-term sea-level highstands as in most other parts of Europe, but also short-term sea-level lowstands, which in less regressive environments have normally been removed by coastal erosion or obscured by berms from subsequent highstands. Based on a high-precision lidar digital terrain model, the beach ridges have been mapped, typified, levelled and correlated relative to their order of appearance. Transformation of this relative chronology to a robust absolute age model of the RSL changes has been made on the basis of 119 … WeiterlesenContinuous record of Holocene sea-level changes and coastal development of the Kattegat island Læsø (4900 years BP to present)

Holocene Relative Sea-Level Changes from Near-, Intermediate-, and Far-Field Locations

19. August 202422. März 2024 von Sven Mildner

DOI https://dx.doi.org/10.1007/s40641-015-0029-z Abstract Holocene relative sea-level (RSL) records exhibit spatial and temporal variability that arises mainly from the interaction of eustatic (land ice volume and thermal expansion) and isostatic (glacio- and hydro-) factors. We fit RSL histories from near-, intermediate-, and far-field locations with noisy-input Gaussian process models to assess rates of RSL change. Records from near-field regions (e.g., Antarctica, Greenland, Canada, Sweden, and Scotland) reveal a complex pattern of RSL fall from a maximum marine limit due to the net effect of eustatic sea-level rise and glacio-isostatic uplift with rates of RSL fall as great as −69 ± 9 m/ka. Intermediate-field regions (e.g., mid-Atlantic and Pacific coasts of the USA, Netherlands, Southern France, St. Croix) display variable rates of RSL rise from the cumulative effect of eustatic and isostatic factors. Fast rates of RSL rise (up to 10 ± 1 m/ka) are found in the early Holocene in regions … WeiterlesenHolocene Relative Sea-Level Changes from Near-, Intermediate-, and Far-Field Locations

Abrupt Holocene ice loss due to thinning and ungrounding in the Weddell Sea Embayment

19. August 202422. März 2024 von Sven Mildner

DOI https://doi.org/10.1038/s41561-024-01375-8 Abstract The extent of grounded ice and buttressing by the Ronne Ice Shelf, which provides resistance to the outflow of ice streams, moderate West Antarctic Ice Sheet stability. During the Last Glacial Maximum, the ice sheet advanced and was grounded near the Weddell Sea continental shelf break. The timing of subsequent ice sheet retreat and the relative roles of ice shelf buttressing and grounding line changes remain unresolved. Here we use an ice core record from grounded ice at Skytrain Ice Rise to constrain the timing and speed of early Holocene ice sheet retreat. Measured δ18O and total air content suggest that the surface elevation of Skytrain Ice Rise decreased by about 450 m between 8.2 and 8.0 kyr before 1950 CE (±0.13 kyr). We attribute this elevation change to dynamic thinning due to flow changes induced by the ungrounding of ice in the area. Ice core sodium concentrations suggest that the ice front … WeiterlesenAbrupt Holocene ice loss due to thinning and ungrounding in the Weddell Sea Embayment

One Thousand Centuries of Climatic Record from Camp Century on the Greenland Ice Sheet

19. August 202420. März 2024 von Sven Mildner

DOI http://dx.doi.org/10.1126/science.166.3903.377 Abstract A correlation of time with depth has been evaluated for the Camp Century, Greenland, 1390 meter deep ice core. Oxygen isotopes in approximately 1600 samples throughout the core have been analyzed. Long-term variations in the isotopic composition of the ice reflect the climatic changes during the past nearly 100,000 years. Climatic oscillations with periods of 120, 940, and 13,000 years are observed. W. Dansgaard et al. ,One Thousand Centuries of Climatic Record from Camp Century on the Greenland Ice Sheet. Science166, 377-381 (1969). DOI: 10.1126/science.166.3903.377

The catastrophic final flooding of Doggerland by the Storegga Slide tsunami

19. August 202420. März 2024 von Sven Mildner

DOI https://doi.org/10.4312/dp.35.1 Abstract Around 8200 calBP, large parts of the now submerged North Sea continental shelf (‘Doggerland’) were catastrophically flooded by the Storegga Slide tsunami, one of the largest tsunamis known for the Holocene, which was generated on the Norwegian coastal margin by a submarine landslide. In the present paper, we derive a precise calendric date for the Storegga Slide tsunami, use this date for reconstruction of contemporary coastlines in the North Sea in relation to rapidly rising sea-levels, and discuss the potential effects of the tsunami on the contemporaneous Mesolithic population. One main result of this study is an unexpectedly high tsunami impact assigned to the western regions of Jutland. Weninger, B., Schulting, R., Bradtmöller, M., Clare, L., Collard, M., Edinborough, K., Hilpert, J., Jöris, O., Niekus, M., Rohling, E. J., & Wagner, B. (2008). The catastrophic final flooding of Doggerland by the Storegga Slide tsunami. Documenta Praehistorica, 35, 1-24. https://doi.org/10.4312/dp.35.1

Rapid Quaternary subsidence in the northwestern German North Sea

19. August 202420. März 2024 von Sven Mildner

DOI https://doi.org/10.1038/s41598-018-29638-6 Abstract 3D and 2D seismic data reveal the base-reflection of the Quaternary in the northwestern German North Sea locally at depths of more than 1000 m. This indicates extremely fast subsidence, with a rate of up to 480 m/Ma during the Quaternary, resulting in a NNW-SSE oriented sedimentary depocentre. Distinct iceberg scour marks, identified in 3D seismic data are used to calibrate quantitative subsidence analysis and to document shallow marine conditions during the Quaternary interglacials. Previously, a number of mechanisms have been proposed to explain the Quaternary subsidence. Here we show that compaction and load-induced subsidence alone explain about 75% of the observed Quaternary subsidence. However, a certain portion of the subsidence needs additional processes to be invoked. The extensive seismic dataset interpreted here makes it possible to exclude a phase of renewed tectonic activity as the origin of the subsidence anomaly. From the orientation and extent of the depocentre, … WeiterlesenRapid Quaternary subsidence in the northwestern German North Sea

The Thor suture zone: From subduction to intraplate basin setting

19. August 202420. März 2024 von Sven Mildner

DOI http://dx.doi.org/10.1130/G37958.1 Abstract The crustal seismic velocity structure of northwestern Europe shows a low P-wave velocity zone (LVZ) in the lower crust along the Caledonian Thor suture zone (TSZ) that cannot be easily attributed to Avalonia or Baltica plates abutting the TSZ. The LVZ appears to correspond to a hitherto unrecognized crustal segment (accretionary complex) that separates Avalonia from Baltica, explaining well the absence of Avalonia further east. Consequently, the northern boundary of Avalonia is shifted ∼150 km southward. Our interpretation, based on analysis of deep seismic profiles, places the LVZ in a consistent crustal domain interpretation. A comparison with present-day examples of the Kuril and Cascadia subduction zones suggests that the LVZ separating Avalonia from Baltica is composed of remnants of the Caledonian accretionary complex. If so, the present-day geometry probably originates from pre-Variscan extension and eduction during Devonian–Carboniferous backarc extension. The reinterpretation of deep crustal zonation provides a … WeiterlesenThe Thor suture zone: From subduction to intraplate basin setting

Fault system evolution in the Baltic Sea area west of Rügen, NE Germany

19. August 202420. März 2024 von Sven Mildner

DOI https://doi.org/10.1144/sp469.24 Abstract Based on reprocessed offshore seismic lines acquired during oil and gas exploration in the 1980s, we reconstruct the formation and reactivation of major fault systems in the southern Baltic Sea area since the late Paleozoic. The geological evolution of different crustal blocks from the Caledonian Avalonia-Baltica collision until the Late Cretaceous-Paleogene inversion tectonics is also examined. The detected fault systems occur in the northern part of the Trans-European Suture Zone (TESZ) and belong either to the late Paleozoic Tornquist Fan or to the complex Western Pomeranian Fault System (WPFS) generated during Mesozoic extensional movements. While the NW- SE-trending deep Wiek Fault separates the Arkona High from the Middle Rügen Block, the NNW-SSE-trending Agricola Fault demarcates the Middle Rügen Block to the Falster Block in the west. Together with the Plantagenet Fault and numerous younger faults in the Mesozoic cover, it forms the Agricola Fault System. Furthermore, structural … WeiterlesenFault system evolution in the Baltic Sea area west of Rügen, NE Germany

Die Neuinterpretation der Germania Magna des Claudius Ptolemaios durch Sven Mildner

DOI https://dx.doi.org/10.23689/fidgeo-5907 Sven Mildner https://orcid.org/0009-0005-8248-4866 In seinem Entwurf zu “Die Neuinterpretation von Claudius Ptolemäus’ Germania Magna – mit Hilfe computergestützter Bildverzerrung einer mittelalterlichen Kartendarstellung des Donnus Nicolaus Germanus – und Betrachtungen zur postglazialen Geodynamik Europas” beschreibt der Autor seine Annahme darüber, dass die Germania Magna einer umfassenderen Landschaftstransformation unterlag als bislang angenommen, bedingt durch die postglaziale Landhebung im Holozän, bzw. aufgrund einer möglichen Reaktivierung der kaledonischen Deformationszone (Caledonian Deformation Front, CDF) im Zuge einer späten Aktivitätsphase der alpidischen Orogenese und den damit einhergehenden tektonischen Aktivitäten in der oberen Erdkruste.*) Diese stehen möglicherweise in Verbindung mit bislang noch nicht zugeordneten oder falsch datierten Bruchereignissen größeren Ausmaßes, die auch zu stärkeren Erdbeben in Europa geführt haben könnten und die uns womöglich sogar aus dem Mittelalter überliefert worden sind[1]. Der Interpretation nach entspricht das durch Ptolemaios beschriebene Gebiet der Germania Magna in seiner Breitenausdehnung in etwa auch dem Gebiet der Bundesrepublik Deutschland, also … WeiterlesenDie Neuinterpretation der Germania Magna des Claudius Ptolemaios durch Sven Mildner

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