(Table 1) Age determination of composite sediment record LO09-14
A sediment core from Reykjanes Ridge has been studied at 10- to 50-year time resolution to document variability of Holocene surface water conditions in the western North Atlantic and to evaluate effects of Holocene ice-rafting episodes. Diatom assemblages are converted to quantitative sea surface te...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.832194 2023-05-15T16:41:28+02:00 (Table 1) Age determination of composite sediment record LO09-14 Berner, K S Koç, Nalân Divine, Dmitry V Godtliebsen, Fred Moros, Matthias MEDIAN LATITUDE: 58.938333 * MEDIAN LONGITUDE: -30.408667 * SOUTH-BOUND LATITUDE: 58.938000 * WEST-BOUND LONGITUDE: -30.409167 * NORTH-BOUND LATITUDE: 58.938667 * EAST-BOUND LONGITUDE: -30.408000 * DATE/TIME START: 1993-09-08T00:00:00 * DATE/TIME END: 1993-09-08T00:00:00 * MINIMUM DEPTH, sediment/rock: 0.000 m * MAXIMUM DEPTH, sediment/rock: 4.470 m 2008-04-30 text/tab-separated-values, 240 data points https://doi.pangaea.de/10.1594/PANGAEA.832194 https://doi.org/10.1594/PANGAEA.832194 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.832194 https://doi.org/10.1594/PANGAEA.832194 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Berner, K S; Koç, Nalân; Divine, Dmitry V; Godtliebsen, Fred; Moros, Matthias (2008): A decadal-scale Holocene sea surface temperature record from the subpolar North Atlantic constructed using diatoms and statistics and its relation to other climate parameters. Paleoceanography, 23(2), PA2210, https://doi.org/10.1029/2006PA001339 Age 14C AMS 14C calibrated dated dated standard deviation Calendar age Depth composite sediment/rock DS37-2P Event label GC Giant box corer GKG Gravity corer Gravity corer (Kiel type) Intercore correlation KAL Kasten corer Laboratory code/label LO09 LO09/14-1 LO09/14-2 LO09/14-3 Professor Logachev SL Dataset 2008 ftpangaea https://doi.org/10.1594/PANGAEA.832194 https://doi.org/10.1029/2006PA001339 2023-01-20T09:03:16Z A sediment core from Reykjanes Ridge has been studied at 10- to 50-year time resolution to document variability of Holocene surface water conditions in the western North Atlantic and to evaluate effects of Holocene ice-rafting episodes. Diatom assemblages are converted to quantitative sea surface temperatures (SST) using three different transfer functions. Spectral and scale-space methods are also applied on the records to explore variability at different timescales. Diatom assemblage and SST records clearly show that decaying remnants of the Laurentide ice sheet strongly influenced early Holocene climate in the western North Atlantic. This overrode the predominance of Milankovitch forcing, which played a key role in the development of Holocene climate in the eastern North Atlantic and Nordic Seas. Superimposed on general Holocene climate change is high-frequency SST variability on the order of 1°-3°C. The record also documents climatic oscillations with 600- to 1000-, ~1500-, and 2500-year periodicities, with a time-dependent dominance of different periodicities through the Holocene; a clear change in variability occurred about 5 ka BP. The SST record also provides evidence for Holocene cooling events (HCE) that, in some cases, correlate to documented southward intrusions of ice into the North Atlantic. Dataset Ice Sheet Nordic Seas North Atlantic PANGAEA - Data Publisher for Earth & Environmental Science Reykjanes ENVELOPE(-22.250,-22.250,65.467,65.467) ENVELOPE(-30.409167,-30.408000,58.938667,58.938000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Age 14C AMS 14C calibrated dated dated standard deviation Calendar age Depth composite sediment/rock DS37-2P Event label GC Giant box corer GKG Gravity corer Gravity corer (Kiel type) Intercore correlation KAL Kasten corer Laboratory code/label LO09 LO09/14-1 LO09/14-2 LO09/14-3 Professor Logachev SL |
spellingShingle |
Age 14C AMS 14C calibrated dated dated standard deviation Calendar age Depth composite sediment/rock DS37-2P Event label GC Giant box corer GKG Gravity corer Gravity corer (Kiel type) Intercore correlation KAL Kasten corer Laboratory code/label LO09 LO09/14-1 LO09/14-2 LO09/14-3 Professor Logachev SL Berner, K S Koç, Nalân Divine, Dmitry V Godtliebsen, Fred Moros, Matthias (Table 1) Age determination of composite sediment record LO09-14 |
topic_facet |
Age 14C AMS 14C calibrated dated dated standard deviation Calendar age Depth composite sediment/rock DS37-2P Event label GC Giant box corer GKG Gravity corer Gravity corer (Kiel type) Intercore correlation KAL Kasten corer Laboratory code/label LO09 LO09/14-1 LO09/14-2 LO09/14-3 Professor Logachev SL |
description |
A sediment core from Reykjanes Ridge has been studied at 10- to 50-year time resolution to document variability of Holocene surface water conditions in the western North Atlantic and to evaluate effects of Holocene ice-rafting episodes. Diatom assemblages are converted to quantitative sea surface temperatures (SST) using three different transfer functions. Spectral and scale-space methods are also applied on the records to explore variability at different timescales. Diatom assemblage and SST records clearly show that decaying remnants of the Laurentide ice sheet strongly influenced early Holocene climate in the western North Atlantic. This overrode the predominance of Milankovitch forcing, which played a key role in the development of Holocene climate in the eastern North Atlantic and Nordic Seas. Superimposed on general Holocene climate change is high-frequency SST variability on the order of 1°-3°C. The record also documents climatic oscillations with 600- to 1000-, ~1500-, and 2500-year periodicities, with a time-dependent dominance of different periodicities through the Holocene; a clear change in variability occurred about 5 ka BP. The SST record also provides evidence for Holocene cooling events (HCE) that, in some cases, correlate to documented southward intrusions of ice into the North Atlantic. |
format |
Dataset |
author |
Berner, K S Koç, Nalân Divine, Dmitry V Godtliebsen, Fred Moros, Matthias |
author_facet |
Berner, K S Koç, Nalân Divine, Dmitry V Godtliebsen, Fred Moros, Matthias |
author_sort |
Berner, K S |
title |
(Table 1) Age determination of composite sediment record LO09-14 |
title_short |
(Table 1) Age determination of composite sediment record LO09-14 |
title_full |
(Table 1) Age determination of composite sediment record LO09-14 |
title_fullStr |
(Table 1) Age determination of composite sediment record LO09-14 |
title_full_unstemmed |
(Table 1) Age determination of composite sediment record LO09-14 |
title_sort |
(table 1) age determination of composite sediment record lo09-14 |
publisher |
PANGAEA |
publishDate |
2008 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.832194 https://doi.org/10.1594/PANGAEA.832194 |
op_coverage |
MEDIAN LATITUDE: 58.938333 * MEDIAN LONGITUDE: -30.408667 * SOUTH-BOUND LATITUDE: 58.938000 * WEST-BOUND LONGITUDE: -30.409167 * NORTH-BOUND LATITUDE: 58.938667 * EAST-BOUND LONGITUDE: -30.408000 * DATE/TIME START: 1993-09-08T00:00:00 * DATE/TIME END: 1993-09-08T00:00:00 * MINIMUM DEPTH, sediment/rock: 0.000 m * MAXIMUM DEPTH, sediment/rock: 4.470 m |
long_lat |
ENVELOPE(-22.250,-22.250,65.467,65.467) ENVELOPE(-30.409167,-30.408000,58.938667,58.938000) |
geographic |
Reykjanes |
geographic_facet |
Reykjanes |
genre |
Ice Sheet Nordic Seas North Atlantic |
genre_facet |
Ice Sheet Nordic Seas North Atlantic |
op_source |
Supplement to: Berner, K S; Koç, Nalân; Divine, Dmitry V; Godtliebsen, Fred; Moros, Matthias (2008): A decadal-scale Holocene sea surface temperature record from the subpolar North Atlantic constructed using diatoms and statistics and its relation to other climate parameters. Paleoceanography, 23(2), PA2210, https://doi.org/10.1029/2006PA001339 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.832194 https://doi.org/10.1594/PANGAEA.832194 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.832194 https://doi.org/10.1029/2006PA001339 |
_version_ |
1766031908626497536 |