Radiocarbon ages and major n-alkane homologues of peat cores LVPS4 and LVPS5B, Russian Arctic
Coupled analyses of n-alkane biomarkers and plant macrofossils from a peat plateau deposit in the northeast European Russian Arctic were carried out to assess the effects of past hydrology on the molecular contributions of plants to the peat. The n-alkane biomarkers accumulated over 9.6 kyr of local...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.806807 2024-09-15T17:50:57+00:00 Radiocarbon ages and major n-alkane homologues of peat cores LVPS4 and LVPS5B, Russian Arctic Andersson, Rina A Kuhry, Peter Meyers, Philip Zebühr, Yngve Crill, Patrick Mörth, Magnus LATITUDE: 67.416670 * LONGITUDE: 63.366670 * DATE/TIME START: 1999-08-04T00:00:00 * DATE/TIME END: 2000-07-26T00:00:00 2011 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.806807 https://doi.org/10.1594/PANGAEA.806807 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.806807 https://doi.org/10.1594/PANGAEA.806807 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Andersson, Rina A; Kuhry, Peter; Meyers, Philip; Zebühr, Yngve; Crill, Patrick; Mörth, Magnus (2011): Impacts of paleohydrological changes on n-alkane biomarker compositions of a Holocene peat sequence in the eastern European Russian Arctic. Organic Geochemistry, 42(9), 1065-1075, https://doi.org/10.1016/j.orggeochem.2011.06.020 International Polar Year (2007-2008) IPY Lek-Vorkuta Northeast Russia PEATC Peat corer dataset publication series 2011 ftpangaea https://doi.org/10.1594/PANGAEA.80680710.1016/j.orggeochem.2011.06.020 2024-07-24T02:31:21Z Coupled analyses of n-alkane biomarkers and plant macrofossils from a peat plateau deposit in the northeast European Russian Arctic were carried out to assess the effects of past hydrology on the molecular contributions of plants to the peat. The n-alkane biomarkers accumulated over 9.6 kyr of local paleohydrological changes in this complex peat profile in which a succession of vegetation changes occurred during a transition from a wet fen to a relatively dry peat plateau bog. This study shows that the contribution of the n-C31 alkane from rootlets to peat layers rich in fine and dark roots is important. The results further indicate that the n-alkane Paq and n-C23/n-C29 biomarker proxies that have been useful to reconstruct past water table levels in many peat deposits can be misleading when the contributions of Betula and Sphagnum fuscum to the peat are large. Under these conditions, the C23/(C27 + C31) n-alkane ratio seems to correct for the presence of Betula and S. fuscum and provides a better description for the relative amounts of moisture. The average chain length (ACL) n-alkane proxy also appears to be a good paleohydrology proxy in having larger values during dry and cold conditions in this Arctic bog setting. Other/Unknown Material Arctic International Polar Year IPY Vorkuta PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(63.366670,63.366670,67.416670,67.416670) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
International Polar Year (2007-2008) IPY Lek-Vorkuta Northeast Russia PEATC Peat corer |
spellingShingle |
International Polar Year (2007-2008) IPY Lek-Vorkuta Northeast Russia PEATC Peat corer Andersson, Rina A Kuhry, Peter Meyers, Philip Zebühr, Yngve Crill, Patrick Mörth, Magnus Radiocarbon ages and major n-alkane homologues of peat cores LVPS4 and LVPS5B, Russian Arctic |
topic_facet |
International Polar Year (2007-2008) IPY Lek-Vorkuta Northeast Russia PEATC Peat corer |
description |
Coupled analyses of n-alkane biomarkers and plant macrofossils from a peat plateau deposit in the northeast European Russian Arctic were carried out to assess the effects of past hydrology on the molecular contributions of plants to the peat. The n-alkane biomarkers accumulated over 9.6 kyr of local paleohydrological changes in this complex peat profile in which a succession of vegetation changes occurred during a transition from a wet fen to a relatively dry peat plateau bog. This study shows that the contribution of the n-C31 alkane from rootlets to peat layers rich in fine and dark roots is important. The results further indicate that the n-alkane Paq and n-C23/n-C29 biomarker proxies that have been useful to reconstruct past water table levels in many peat deposits can be misleading when the contributions of Betula and Sphagnum fuscum to the peat are large. Under these conditions, the C23/(C27 + C31) n-alkane ratio seems to correct for the presence of Betula and S. fuscum and provides a better description for the relative amounts of moisture. The average chain length (ACL) n-alkane proxy also appears to be a good paleohydrology proxy in having larger values during dry and cold conditions in this Arctic bog setting. |
format |
Other/Unknown Material |
author |
Andersson, Rina A Kuhry, Peter Meyers, Philip Zebühr, Yngve Crill, Patrick Mörth, Magnus |
author_facet |
Andersson, Rina A Kuhry, Peter Meyers, Philip Zebühr, Yngve Crill, Patrick Mörth, Magnus |
author_sort |
Andersson, Rina A |
title |
Radiocarbon ages and major n-alkane homologues of peat cores LVPS4 and LVPS5B, Russian Arctic |
title_short |
Radiocarbon ages and major n-alkane homologues of peat cores LVPS4 and LVPS5B, Russian Arctic |
title_full |
Radiocarbon ages and major n-alkane homologues of peat cores LVPS4 and LVPS5B, Russian Arctic |
title_fullStr |
Radiocarbon ages and major n-alkane homologues of peat cores LVPS4 and LVPS5B, Russian Arctic |
title_full_unstemmed |
Radiocarbon ages and major n-alkane homologues of peat cores LVPS4 and LVPS5B, Russian Arctic |
title_sort |
radiocarbon ages and major n-alkane homologues of peat cores lvps4 and lvps5b, russian arctic |
publisher |
PANGAEA |
publishDate |
2011 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.806807 https://doi.org/10.1594/PANGAEA.806807 |
op_coverage |
LATITUDE: 67.416670 * LONGITUDE: 63.366670 * DATE/TIME START: 1999-08-04T00:00:00 * DATE/TIME END: 2000-07-26T00:00:00 |
long_lat |
ENVELOPE(63.366670,63.366670,67.416670,67.416670) |
genre |
Arctic International Polar Year IPY Vorkuta |
genre_facet |
Arctic International Polar Year IPY Vorkuta |
op_source |
Supplement to: Andersson, Rina A; Kuhry, Peter; Meyers, Philip; Zebühr, Yngve; Crill, Patrick; Mörth, Magnus (2011): Impacts of paleohydrological changes on n-alkane biomarker compositions of a Holocene peat sequence in the eastern European Russian Arctic. Organic Geochemistry, 42(9), 1065-1075, https://doi.org/10.1016/j.orggeochem.2011.06.020 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.806807 https://doi.org/10.1594/PANGAEA.806807 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.80680710.1016/j.orggeochem.2011.06.020 |
_version_ |
1810292748365856768 |