Late Quaternary palaeoenvironmental reconstructions from a permafrost sequence (North Siberian Lowland, SE Taymyr Peninsula) - a multidisciplinary case study
A Late Quaternary permafrost profile from the Labaz Lake area (Taymyr Peninsula, Central Siberia) has been investigated using analyses of diatoms, pollen, sedimentology and geochemistry. A sedimentation gap for the termination of the Pleistocene and the start of lacustrine sedimentation in the Borea...
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ftgfzpotsdam:oai:gfzpublic.gfz-potsdam.de:item_230392 2023-05-15T17:57:04+02:00 Late Quaternary palaeoenvironmental reconstructions from a permafrost sequence (North Siberian Lowland, SE Taymyr Peninsula) - a multidisciplinary case study Kienel, U. Siegert, C. Hahne, J. 1999 https://gfzpublic.gfz-potsdam.de/pubman/item/item_230392 unknown https://gfzpublic.gfz-potsdam.de/pubman/item/item_230392 Boreas 550 - Earth sciences info:eu-repo/semantics/article 1999 ftgfzpotsdam 2022-09-14T05:56:44Z A Late Quaternary permafrost profile from the Labaz Lake area (Taymyr Peninsula, Central Siberia) has been investigated using analyses of diatoms, pollen, sedimentology and geochemistry. A sedimentation gap for the termination of the Pleistocene and the start of lacustrine sedimentation in the Boreal can be inferred. At that time shallow-lake conditions prevailed and a connection to the Labaz Lake is probable. The diatom data provide indications for the assessment of the Holocene environmental development of the study site in more detail. The most favourable climatic conditions and comparatively higher water level stands are inferred for the early Atlantic. Towards the end of this period the gradual transition to a wetland with poor-fen character took place. Within the Subboreal there was a short episode with mild climate conditions. At that time the last trees occurred in the Labaz Lake area and somewhat higher water level stands were likely. The Subatlantic climate deterioration led to further drying up of the wetland along with a lowering of water pH and permafrost aggradation. The transition from a locality with low-centre to one with high-centre polygons is still underway. Article in Journal/Newspaper permafrost Taymyr Taymyr Peninsula Siberia GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) Taymyr ENVELOPE(89.987,89.987,68.219,68.219) |
institution |
Open Polar |
collection |
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) |
op_collection_id |
ftgfzpotsdam |
language |
unknown |
topic |
550 - Earth sciences |
spellingShingle |
550 - Earth sciences Kienel, U. Siegert, C. Hahne, J. Late Quaternary palaeoenvironmental reconstructions from a permafrost sequence (North Siberian Lowland, SE Taymyr Peninsula) - a multidisciplinary case study |
topic_facet |
550 - Earth sciences |
description |
A Late Quaternary permafrost profile from the Labaz Lake area (Taymyr Peninsula, Central Siberia) has been investigated using analyses of diatoms, pollen, sedimentology and geochemistry. A sedimentation gap for the termination of the Pleistocene and the start of lacustrine sedimentation in the Boreal can be inferred. At that time shallow-lake conditions prevailed and a connection to the Labaz Lake is probable. The diatom data provide indications for the assessment of the Holocene environmental development of the study site in more detail. The most favourable climatic conditions and comparatively higher water level stands are inferred for the early Atlantic. Towards the end of this period the gradual transition to a wetland with poor-fen character took place. Within the Subboreal there was a short episode with mild climate conditions. At that time the last trees occurred in the Labaz Lake area and somewhat higher water level stands were likely. The Subatlantic climate deterioration led to further drying up of the wetland along with a lowering of water pH and permafrost aggradation. The transition from a locality with low-centre to one with high-centre polygons is still underway. |
format |
Article in Journal/Newspaper |
author |
Kienel, U. Siegert, C. Hahne, J. |
author_facet |
Kienel, U. Siegert, C. Hahne, J. |
author_sort |
Kienel, U. |
title |
Late Quaternary palaeoenvironmental reconstructions from a permafrost sequence (North Siberian Lowland, SE Taymyr Peninsula) - a multidisciplinary case study |
title_short |
Late Quaternary palaeoenvironmental reconstructions from a permafrost sequence (North Siberian Lowland, SE Taymyr Peninsula) - a multidisciplinary case study |
title_full |
Late Quaternary palaeoenvironmental reconstructions from a permafrost sequence (North Siberian Lowland, SE Taymyr Peninsula) - a multidisciplinary case study |
title_fullStr |
Late Quaternary palaeoenvironmental reconstructions from a permafrost sequence (North Siberian Lowland, SE Taymyr Peninsula) - a multidisciplinary case study |
title_full_unstemmed |
Late Quaternary palaeoenvironmental reconstructions from a permafrost sequence (North Siberian Lowland, SE Taymyr Peninsula) - a multidisciplinary case study |
title_sort |
late quaternary palaeoenvironmental reconstructions from a permafrost sequence (north siberian lowland, se taymyr peninsula) - a multidisciplinary case study |
publishDate |
1999 |
url |
https://gfzpublic.gfz-potsdam.de/pubman/item/item_230392 |
long_lat |
ENVELOPE(89.987,89.987,68.219,68.219) |
geographic |
Taymyr |
geographic_facet |
Taymyr |
genre |
permafrost Taymyr Taymyr Peninsula Siberia |
genre_facet |
permafrost Taymyr Taymyr Peninsula Siberia |
op_source |
Boreas |
op_relation |
https://gfzpublic.gfz-potsdam.de/pubman/item/item_230392 |
_version_ |
1766165420612517888 |