Evidence for an Extreme Cooling Event Prior to the Laschamp Geomagnetic Excursion in Eifel Maar Sediments
Datos Bibliográficos
| ID | 15801774 |
|---|---|
| Autores | Johannes Albert (0009-0006-6508-6337, Johannes Gutenberg University Mainz, autor de correspondencia), Frank Sirocko (0000-0002-3131-0613, Johannes Gutenberg University Mainz) |
| Año | 2023 |
| Volumen | 6 |
| Número | 1 |
| Páginas | 14-14 |
| Fecha de publicación | 2023-02-12 |
| Open Access | Sí |
| Tipo | ARTICLE |
| Revista | Quaternary (JOURNAL) |
| Identificadores de la revista | ISSN: 2571-550X • E-ISSN: 2571-550X |
| Editorial | Multidisciplinary Digital Publishing Institute (PUBLISHER • CH) |
| DOI | 10.3390/quat6010014 |
| OpenAlex | W4320496633 |
| Idioma | EN |
| Citas recibidas | 5 |
| Referencias citadas | 65 |
We present a timeseries of flood and slumping phases in central Europe for the past 65,000 years from event layers in sediment cores from infilled Eifel maar basins (Germany). Palynological, petrographic and organic carbon (chlorins) records are used to understand the precise timing of these events. Periods of increased flood activity seem to coincide with Heinrich stadials in marine sediment records, which are associated with cold and more arid climate conditions, indicating a vegetation response within the maars’ catchment areas. This multi-proxy correlation reveals prominent slumps at different maar sites during Greenland Stadial (GS) 12. The stratigraphy is based on sediment records from the Auel infilled maar and we thus call this event Auel Cold Event (ACE). Frozen and fractured sediment packages within the slump suggest deep frost or permafrost conditions for the region during the stadial. The results agree well with sediment archives and archeological sites across Europe that report severely cold and arid conditions for the stadial. This supports the assumption that GS12 was indeed one of the coldest periods of the last glacial cycle rather than the Heinrich stadials. Based on our age model, the ACE occurred at 43,500 yr b2k (years before the year 2000), which coincides with the initial weakening of Earth’s magnetic field strength prior to the Laschamp geomagnetic excursion
Alluvial fan · Glacial period · Maar · Palynology · Sediment · Stadial · Structural basin · Volcano · Geological formations and processes · Geology and Paleoclimatology Research · Pleistocene-Era Hominins and Archaeology · Geology · Paleontology
Holocene and Late Pleistocene Flood Events in Central Europe Reconstructed from Eifel Maar Lake Sediments
Fine-Tuning of Sub-Annual Resolution Spectral Index Time Series from Eifel Maar Sediments, Western Germany, to the NGRIP δ18O Chronology, 26–60 ka
Vegetation Dynamics and Megaherbivore Presence of MIS 3 Stadials and Interstadials 10–8 Obtained from a Sediment Core from Auel Infilled Maar, Eifel, Germany
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| Citas por año | 1,67 |
|---|---|
| Intervalo de citas | 2023 - 2025 (3) |
| Altamente citado | No |