Palaeovegetation and environment during Weichselian stadials and interstadials at Mamontovaya Kurja and Sokolova in the Pechora basin, northern Russia
The vegetation and climate history of the Pechora area of northwestern Russia during the Early- and Mid Weichselian have been studied. Sediments from two sites have been analysed in this study; from Sokolova and Mamontovaya Kurja. The results show that the vegetation successional sequence found at S...
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Format: | Master Thesis |
Language: | English |
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The University of Bergen
2000
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Online Access: | https://hdl.handle.net/11250/3084247 |
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ftunivbergen:oai:bora.uib.no:11250/3084247 2023-09-05T13:22:24+02:00 Palaeovegetation and environment during Weichselian stadials and interstadials at Mamontovaya Kurja and Sokolova in the Pechora basin, northern Russia Halvorsen, Lene S. 2000 application/pdf https://hdl.handle.net/11250/3084247 eng eng The University of Bergen https://hdl.handle.net/11250/3084247 Copyright the author. All rights reserved Master thesis 2000 ftunivbergen 2023-08-23T23:07:36Z The vegetation and climate history of the Pechora area of northwestern Russia during the Early- and Mid Weichselian have been studied. Sediments from two sites have been analysed in this study; from Sokolova and Mamontovaya Kurja. The results show that the vegetation successional sequence found at Sokolova, most probably represent vegetation types of the Early Weichselian. The vegetation changed from an open shrub tundra, or grass tundra during the pre-Brörup stages, to an open birch forest, with some scattered spruce during the Brörup interstadial. The vegetation sequence at Mamontovaya Kurja possibly reflects two different warming periods (interstadials) of the Weichselian. The first one occurring around 37 ka BP, the second around 27- 30 ka BP (correlating to the Ålesund interstadial). The vegetation at Mamontovaya Kurja showed minor changes throughout the studied section. The vegetation was probably an open grass steppe or steppe tundra throughout the time period studied. In the upper part of the section the vegetation seems to have changed to a drier type. This appears to reflect a climatic deterioration. Increased eolian activity is reflected in the sequence by almost complete disappearance of pollen grains in the uppermost layers. The age of the lowermost pollen assemblage at Mamontovaya Kurja has not yet been resolved, but datings of these sediments are currently being undertaken. Master Thesis Pechora Tundra University of Bergen: Bergen Open Research Archive (BORA-UiB) Mamontovaya ENVELOPE(179.551,179.551,70.879,70.879) Sokolova ENVELOPE(137.588,137.588,75.969,75.969) |
institution |
Open Polar |
collection |
University of Bergen: Bergen Open Research Archive (BORA-UiB) |
op_collection_id |
ftunivbergen |
language |
English |
description |
The vegetation and climate history of the Pechora area of northwestern Russia during the Early- and Mid Weichselian have been studied. Sediments from two sites have been analysed in this study; from Sokolova and Mamontovaya Kurja. The results show that the vegetation successional sequence found at Sokolova, most probably represent vegetation types of the Early Weichselian. The vegetation changed from an open shrub tundra, or grass tundra during the pre-Brörup stages, to an open birch forest, with some scattered spruce during the Brörup interstadial. The vegetation sequence at Mamontovaya Kurja possibly reflects two different warming periods (interstadials) of the Weichselian. The first one occurring around 37 ka BP, the second around 27- 30 ka BP (correlating to the Ålesund interstadial). The vegetation at Mamontovaya Kurja showed minor changes throughout the studied section. The vegetation was probably an open grass steppe or steppe tundra throughout the time period studied. In the upper part of the section the vegetation seems to have changed to a drier type. This appears to reflect a climatic deterioration. Increased eolian activity is reflected in the sequence by almost complete disappearance of pollen grains in the uppermost layers. The age of the lowermost pollen assemblage at Mamontovaya Kurja has not yet been resolved, but datings of these sediments are currently being undertaken. |
format |
Master Thesis |
author |
Halvorsen, Lene S. |
spellingShingle |
Halvorsen, Lene S. Palaeovegetation and environment during Weichselian stadials and interstadials at Mamontovaya Kurja and Sokolova in the Pechora basin, northern Russia |
author_facet |
Halvorsen, Lene S. |
author_sort |
Halvorsen, Lene S. |
title |
Palaeovegetation and environment during Weichselian stadials and interstadials at Mamontovaya Kurja and Sokolova in the Pechora basin, northern Russia |
title_short |
Palaeovegetation and environment during Weichselian stadials and interstadials at Mamontovaya Kurja and Sokolova in the Pechora basin, northern Russia |
title_full |
Palaeovegetation and environment during Weichselian stadials and interstadials at Mamontovaya Kurja and Sokolova in the Pechora basin, northern Russia |
title_fullStr |
Palaeovegetation and environment during Weichselian stadials and interstadials at Mamontovaya Kurja and Sokolova in the Pechora basin, northern Russia |
title_full_unstemmed |
Palaeovegetation and environment during Weichselian stadials and interstadials at Mamontovaya Kurja and Sokolova in the Pechora basin, northern Russia |
title_sort |
palaeovegetation and environment during weichselian stadials and interstadials at mamontovaya kurja and sokolova in the pechora basin, northern russia |
publisher |
The University of Bergen |
publishDate |
2000 |
url |
https://hdl.handle.net/11250/3084247 |
long_lat |
ENVELOPE(179.551,179.551,70.879,70.879) ENVELOPE(137.588,137.588,75.969,75.969) |
geographic |
Mamontovaya Sokolova |
geographic_facet |
Mamontovaya Sokolova |
genre |
Pechora Tundra |
genre_facet |
Pechora Tundra |
op_relation |
https://hdl.handle.net/11250/3084247 |
op_rights |
Copyright the author. All rights reserved |
_version_ |
1776202917480497152 |