Temporal patterns in lacustrine stable isotopes as evidence for climate change during the late glacial in the Southern European Alps
We investigated oxygen and carbon isotopes of bulk carbonate and of benthic freshwater ostracods (Candona candida) in a sediment core of Lago Piccolo di Avigliana that was previously analyzed for pollen and loss-on-ignition, in order to reconstruct environmental changes during the late glacial and e...
Main Authors: | , , , , , , |
---|---|
Format: | Text |
Language: | unknown |
Published: |
Kluwer Academic
2008
|
Subjects: | |
Online Access: | https://dx.doi.org/10.48350/30442 https://boris.unibe.ch/30442/ |
id |
ftdatacite:10.48350/30442 |
---|---|
record_format |
openpolar |
spelling |
ftdatacite:10.48350/30442 2023-05-15T17:33:43+02:00 Temporal patterns in lacustrine stable isotopes as evidence for climate change during the late glacial in the Southern European Alps Finsinger, Walter Belis, Claudio Blockley, Simon P.E. Eicher, Ueli Leuenberger, Markus Lotter, André F. Ammann, Brigitta 2008 https://dx.doi.org/10.48350/30442 https://boris.unibe.ch/30442/ unknown Kluwer Academic https://dx.doi.org/10.1007/s10933-008-9205-7 open access Creative Commons Attribution Non Commercial 4.0 International https://creativecommons.org/licenses/by-nc/4.0/legalcode cc-by-nc-4.0 http://purl.org/coar/access_right/c_abf2 CC-BY-NC 580 Plants Botany journal article article-journal Text ScholarlyArticle 2008 ftdatacite https://doi.org/10.48350/30442 https://doi.org/10.1007/s10933-008-9205-7 2022-02-08T16:39:48Z We investigated oxygen and carbon isotopes of bulk carbonate and of benthic freshwater ostracods (Candona candida) in a sediment core of Lago Piccolo di Avigliana that was previously analyzed for pollen and loss-on-ignition, in order to reconstruct environmental changes during the late glacial and early Holocene. The depth-age relationship of the sediment core was established using 14 AMS C-14 dates and the Laacher See Tephra. While stable isotopes of bulk carbonates may have been affected by detrital input and, therefore, only indirectly reflect climatic changes, isotopes measured on ostracod shells provide unambiguous evidence for major environmental changes. Oxygen isotope ratios of ostracod shells (delta O-18(C)) increased by similar to 6 parts per thousand at the onset of the Bolling (similar to 14,650 cal BP) and were similar to 2 parts per thousand lower during the Younger Dryas (similar to 12,850 to 11,650 cal BP), indicating a temporal pattern of climate changes similar to the North Atlantic region. However, in contrast to records in that region, delta O-18(C) gradually decreased during the early Holocene, suggesting that compared to the Younger Dryas more humid conditions occurred and that the lake received gradually increasing input of O-18-depleted groundwater or river water. Text North Atlantic DataCite Metadata Store (German National Library of Science and Technology) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
580 Plants Botany |
spellingShingle |
580 Plants Botany Finsinger, Walter Belis, Claudio Blockley, Simon P.E. Eicher, Ueli Leuenberger, Markus Lotter, André F. Ammann, Brigitta Temporal patterns in lacustrine stable isotopes as evidence for climate change during the late glacial in the Southern European Alps |
topic_facet |
580 Plants Botany |
description |
We investigated oxygen and carbon isotopes of bulk carbonate and of benthic freshwater ostracods (Candona candida) in a sediment core of Lago Piccolo di Avigliana that was previously analyzed for pollen and loss-on-ignition, in order to reconstruct environmental changes during the late glacial and early Holocene. The depth-age relationship of the sediment core was established using 14 AMS C-14 dates and the Laacher See Tephra. While stable isotopes of bulk carbonates may have been affected by detrital input and, therefore, only indirectly reflect climatic changes, isotopes measured on ostracod shells provide unambiguous evidence for major environmental changes. Oxygen isotope ratios of ostracod shells (delta O-18(C)) increased by similar to 6 parts per thousand at the onset of the Bolling (similar to 14,650 cal BP) and were similar to 2 parts per thousand lower during the Younger Dryas (similar to 12,850 to 11,650 cal BP), indicating a temporal pattern of climate changes similar to the North Atlantic region. However, in contrast to records in that region, delta O-18(C) gradually decreased during the early Holocene, suggesting that compared to the Younger Dryas more humid conditions occurred and that the lake received gradually increasing input of O-18-depleted groundwater or river water. |
format |
Text |
author |
Finsinger, Walter Belis, Claudio Blockley, Simon P.E. Eicher, Ueli Leuenberger, Markus Lotter, André F. Ammann, Brigitta |
author_facet |
Finsinger, Walter Belis, Claudio Blockley, Simon P.E. Eicher, Ueli Leuenberger, Markus Lotter, André F. Ammann, Brigitta |
author_sort |
Finsinger, Walter |
title |
Temporal patterns in lacustrine stable isotopes as evidence for climate change during the late glacial in the Southern European Alps |
title_short |
Temporal patterns in lacustrine stable isotopes as evidence for climate change during the late glacial in the Southern European Alps |
title_full |
Temporal patterns in lacustrine stable isotopes as evidence for climate change during the late glacial in the Southern European Alps |
title_fullStr |
Temporal patterns in lacustrine stable isotopes as evidence for climate change during the late glacial in the Southern European Alps |
title_full_unstemmed |
Temporal patterns in lacustrine stable isotopes as evidence for climate change during the late glacial in the Southern European Alps |
title_sort |
temporal patterns in lacustrine stable isotopes as evidence for climate change during the late glacial in the southern european alps |
publisher |
Kluwer Academic |
publishDate |
2008 |
url |
https://dx.doi.org/10.48350/30442 https://boris.unibe.ch/30442/ |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://dx.doi.org/10.1007/s10933-008-9205-7 |
op_rights |
open access Creative Commons Attribution Non Commercial 4.0 International https://creativecommons.org/licenses/by-nc/4.0/legalcode cc-by-nc-4.0 http://purl.org/coar/access_right/c_abf2 |
op_rightsnorm |
CC-BY-NC |
op_doi |
https://doi.org/10.48350/30442 https://doi.org/10.1007/s10933-008-9205-7 |
_version_ |
1766132316439052288 |