Nesseltalgraben, a new reference section of the last glacial period in southern Germany
In the northern Alpine region only a few lacustrine sediment sequences are known from the period of the last glacial, regionally assigned as Würmian. Even less is known about Alpine palaeoenvironments prior to the last glacial maximum (LGM). The recently discovered sediment sections at the Nesseltal...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Journal Article |
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Springer Link
2017
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| Online Access: | http://hdl.handle.net/20.500.11937/54434 |
| _version_ | 1848759370403282944 |
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| author | Mayr, C. Brandlmeier, B. Diersche, V. Stojakowits, P. Kirscher, Uwe Matzke-Karasz, R. Bachtadse, V. Eigler, M. Haas, U. Lempe, B. Reimer, P. Spötl, C. |
| author_facet | Mayr, C. Brandlmeier, B. Diersche, V. Stojakowits, P. Kirscher, Uwe Matzke-Karasz, R. Bachtadse, V. Eigler, M. Haas, U. Lempe, B. Reimer, P. Spötl, C. |
| author_sort | Mayr, C. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | In the northern Alpine region only a few lacustrine sediment sequences are known from the period of the last glacial, regionally assigned as Würmian. Even less is known about Alpine palaeoenvironments prior to the last glacial maximum (LGM). The recently discovered sediment sections at the Nesseltalgraben site (northern Alps, southern Germany) presented here, comprise an approximately 27-m-high, predominantly lacustrine composite profile below coarse clastic sediments assigned to the LGM and underlain by Permian–Triassic evaporitic and sandy clayey sediments of the Haselgebirge and Werfen-Formation. The Würmian lake sediments consist of carbonate mud layers representing cooler phases, and organic rich layers (compressed peat, organic mud), that were deposited during warmer periods. Bulk organic geochemical analyses suggest that predominantly algal organic matter was deposited during the cooler periods, while higher fractions of terrestrial vascular plants were admixed during warmer phases. A diamict represents an erosional unconformity and cuts the sediment sequence into a lower and an upper part. Paleomagnetic, palynostratigraphic and radiocarbon analyses place the lower part into the Marine Isotope Stage (MIS) 5c (Lower Würmian), while the upper part covers at least the period from 45 to 31 ka cal BP (MIS 3, Middle Würmian). Different explanations for the origin and spatiotemporal extent of the palaeolake are discussed. The most plausible sedimentary deposition is the formation of the small-scaled lake in a sinkhole in the evaporitic Haselgebirge Formation. The results highlight the significance of the Nesseltalgraben site as a new reference section of the last glacial period in the Northern Calcareous Alps and call for the necessity of further geochronological and paleoenvironmental studies at that site. |
| first_indexed | 2025-11-14T09:58:48Z |
| format | Journal Article |
| id | curtin-20.500.11937-54434 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:58:48Z |
| publishDate | 2017 |
| publisher | Springer Link |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-544342017-10-31T01:34:43Z Nesseltalgraben, a new reference section of the last glacial period in southern Germany Mayr, C. Brandlmeier, B. Diersche, V. Stojakowits, P. Kirscher, Uwe Matzke-Karasz, R. Bachtadse, V. Eigler, M. Haas, U. Lempe, B. Reimer, P. Spötl, C. In the northern Alpine region only a few lacustrine sediment sequences are known from the period of the last glacial, regionally assigned as Würmian. Even less is known about Alpine palaeoenvironments prior to the last glacial maximum (LGM). The recently discovered sediment sections at the Nesseltalgraben site (northern Alps, southern Germany) presented here, comprise an approximately 27-m-high, predominantly lacustrine composite profile below coarse clastic sediments assigned to the LGM and underlain by Permian–Triassic evaporitic and sandy clayey sediments of the Haselgebirge and Werfen-Formation. The Würmian lake sediments consist of carbonate mud layers representing cooler phases, and organic rich layers (compressed peat, organic mud), that were deposited during warmer periods. Bulk organic geochemical analyses suggest that predominantly algal organic matter was deposited during the cooler periods, while higher fractions of terrestrial vascular plants were admixed during warmer phases. A diamict represents an erosional unconformity and cuts the sediment sequence into a lower and an upper part. Paleomagnetic, palynostratigraphic and radiocarbon analyses place the lower part into the Marine Isotope Stage (MIS) 5c (Lower Würmian), while the upper part covers at least the period from 45 to 31 ka cal BP (MIS 3, Middle Würmian). Different explanations for the origin and spatiotemporal extent of the palaeolake are discussed. The most plausible sedimentary deposition is the formation of the small-scaled lake in a sinkhole in the evaporitic Haselgebirge Formation. The results highlight the significance of the Nesseltalgraben site as a new reference section of the last glacial period in the Northern Calcareous Alps and call for the necessity of further geochronological and paleoenvironmental studies at that site. 2017 Journal Article http://hdl.handle.net/20.500.11937/54434 10.1007/s10933-017-9972-0 Springer Link restricted |
| spellingShingle | Mayr, C. Brandlmeier, B. Diersche, V. Stojakowits, P. Kirscher, Uwe Matzke-Karasz, R. Bachtadse, V. Eigler, M. Haas, U. Lempe, B. Reimer, P. Spötl, C. Nesseltalgraben, a new reference section of the last glacial period in southern Germany |
| title | Nesseltalgraben, a new reference section of the last glacial period in southern Germany |
| title_full | Nesseltalgraben, a new reference section of the last glacial period in southern Germany |
| title_fullStr | Nesseltalgraben, a new reference section of the last glacial period in southern Germany |
| title_full_unstemmed | Nesseltalgraben, a new reference section of the last glacial period in southern Germany |
| title_short | Nesseltalgraben, a new reference section of the last glacial period in southern Germany |
| title_sort | nesseltalgraben, a new reference section of the last glacial period in southern germany |
| url | http://hdl.handle.net/20.500.11937/54434 |