(Table 1) Age determination of sediment cores
Two sediment cores from the western Arabian Sea, NIOP905 and 74KL, were analyzed to determine sea surface temperature (SST) variations over the last 23 kyr. Two organic molecular SST proxies were used, the well-established UK'37 based on long-chain unsaturated ketones synthesized by haptophyte...
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PANGAEA
2006
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.834601 https://doi.org/10.1594/PANGAEA.834601 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.834601 |
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openpolar |
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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 error maximum/old minimum/young Arabian Sea Calendar age Depth bottom/max sediment/rock top/min Event label KAL Kasten corer KL-74 AS-12 NIOP-C2 NIOP-C2_905_PC PC Piston corer Reference/source Reservoir effect/correction standard deviation SO42 SO42-74KL Sonne Tyro |
spellingShingle |
Age 14C AMS 14C calibrated dated dated standard error maximum/old minimum/young Arabian Sea Calendar age Depth bottom/max sediment/rock top/min Event label KAL Kasten corer KL-74 AS-12 NIOP-C2 NIOP-C2_905_PC PC Piston corer Reference/source Reservoir effect/correction standard deviation SO42 SO42-74KL Sonne Tyro Huguet, Carme Kim, Jung-Hyun Sinninghe Damsté, Jaap S Schouten, Stefan (Table 1) Age determination of sediment cores |
topic_facet |
Age 14C AMS 14C calibrated dated dated standard error maximum/old minimum/young Arabian Sea Calendar age Depth bottom/max sediment/rock top/min Event label KAL Kasten corer KL-74 AS-12 NIOP-C2 NIOP-C2_905_PC PC Piston corer Reference/source Reservoir effect/correction standard deviation SO42 SO42-74KL Sonne Tyro |
description |
Two sediment cores from the western Arabian Sea, NIOP905 and 74KL, were analyzed to determine sea surface temperature (SST) variations over the last 23 kyr. Two organic molecular SST proxies were used, the well-established UK'37 based on long-chain unsaturated ketones synthesized by haptophyte algae and the newly proposed TEX86 derived from the membrane lipids of Crenarchaeota. Comparison of NIOP905 and 74KL core top data with present-day SST (0-10 m) values indicates that both proxies yield temperatures similar to local annual mean SSTs. However, TEX86 and UK'37 SST down-core records derived from the same cores differ in magnitude and phasing. The alkenone SST record of NIOP905 shows small changes in SST (~0.5°C) over the last 23 kyr, while that of core 74KL shows a ~2°C increase from the Last Glacial Maximum (LGM) (23-19 calendar (cal) kyr B.P.) through the Holocene (the last 11.5 cal kyr B.P.) synchronous with changes in the Northern Hemisphere. In contrast, the TEX86 records of both cores show a large increase in SST from 22°-23°C in the LGM to 28°-30°C during Termination I (19-11.5 cal kyr B.P.), decreasing to present-day annual means of ~26°C. A cold phase between 14.5 and 12 cal kyr B.P. that may correspond to the Antarctic cold reversal is also observed. This implies a Southern Hemisphere control on tropical SST reconstructed by the TEX86, possibly related to SW monsoon. Our results suggest that the application of both TEX86 and UK'37 give different but complementary information on SST developments in past marine environments. |
format |
Dataset |
author |
Huguet, Carme Kim, Jung-Hyun Sinninghe Damsté, Jaap S Schouten, Stefan |
author_facet |
Huguet, Carme Kim, Jung-Hyun Sinninghe Damsté, Jaap S Schouten, Stefan |
author_sort |
Huguet, Carme |
title |
(Table 1) Age determination of sediment cores |
title_short |
(Table 1) Age determination of sediment cores |
title_full |
(Table 1) Age determination of sediment cores |
title_fullStr |
(Table 1) Age determination of sediment cores |
title_full_unstemmed |
(Table 1) Age determination of sediment cores |
title_sort |
(table 1) age determination of sediment cores |
publisher |
PANGAEA |
publishDate |
2006 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.834601 https://doi.org/10.1594/PANGAEA.834601 |
op_coverage |
MEDIAN LATITUDE: 12.543830 * MEDIAN LONGITUDE: 54.648500 * SOUTH-BOUND LATITUDE: 10.766660 * WEST-BOUND LONGITUDE: 51.950000 * NORTH-BOUND LATITUDE: 14.321000 * EAST-BOUND LONGITUDE: 57.347000 * DATE/TIME START: 1986-05-24T00:00:00 * DATE/TIME END: 1993-02-13T00:00:00 * MINIMUM DEPTH, sediment/rock: 0.0750 m * MAXIMUM DEPTH, sediment/rock: 4.8025 m |
long_lat |
ENVELOPE(51.950000,57.347000,14.321000,10.766660) |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Supplement to: Huguet, Carme; Kim, Jung-Hyun; Sinninghe Damsté, Jaap S; Schouten, Stefan (2006): Reconstruction of sea surface temperature variations in the Arabian Sea over the last 23 kyr using organic proxies (TEX86 and UK'37). Paleoceanography, 21(3), PA3003, https://doi.org/10.1029/2005PA001215 |
op_relation |
Ivanochko, Tara S (2005): Sub-orbital variations in the intensity of the Arabian Sea monsoon [dissertation]. University of Edinburgh, Edinburgh, U.K., 230 pp Ivanova, E (1999): Late Quaternary monsoon history and paleoproductivity of the western Arabian Sea [dissertation]. Free University, Amsterdam, 172 pp Jung, S J A; Davies, Gareth R; Ganssen, Gerald M; Kroon, Dick (2002): Decadal-centennial scale monsoon variations in the Arabian Sea during the Early Holocene. Geochemistry, Geophysics, Geosystems, 3(10), 1060, https://doi.org/10.1029/2002GC000348 Sirocko, Frank; Sarnthein, Michael; Erlenkeuser, Helmut; Lange, Heinz; Arnold, Maurice; Duplessy, Jean-Claude (1993): Century-scale events in monsoonal climate over the past 24,000 years. Nature, 364, 322-324, https://doi.org/10.1038/364322a0 https://doi.pangaea.de/10.1594/PANGAEA.834601 https://doi.org/10.1594/PANGAEA.834601 |
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.83460110.1029/2005PA00121510.1029/2002GC00034810.1038/364322a0 |
_version_ |
1810486658970157056 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.834601 2024-09-15T17:40:38+00:00 (Table 1) Age determination of sediment cores Huguet, Carme Kim, Jung-Hyun Sinninghe Damsté, Jaap S Schouten, Stefan MEDIAN LATITUDE: 12.543830 * MEDIAN LONGITUDE: 54.648500 * SOUTH-BOUND LATITUDE: 10.766660 * WEST-BOUND LONGITUDE: 51.950000 * NORTH-BOUND LATITUDE: 14.321000 * EAST-BOUND LONGITUDE: 57.347000 * DATE/TIME START: 1986-05-24T00:00:00 * DATE/TIME END: 1993-02-13T00:00:00 * MINIMUM DEPTH, sediment/rock: 0.0750 m * MAXIMUM DEPTH, sediment/rock: 4.8025 m 2006 text/tab-separated-values, 320 data points https://doi.pangaea.de/10.1594/PANGAEA.834601 https://doi.org/10.1594/PANGAEA.834601 en eng PANGAEA Ivanochko, Tara S (2005): Sub-orbital variations in the intensity of the Arabian Sea monsoon [dissertation]. University of Edinburgh, Edinburgh, U.K., 230 pp Ivanova, E (1999): Late Quaternary monsoon history and paleoproductivity of the western Arabian Sea [dissertation]. Free University, Amsterdam, 172 pp Jung, S J A; Davies, Gareth R; Ganssen, Gerald M; Kroon, Dick (2002): Decadal-centennial scale monsoon variations in the Arabian Sea during the Early Holocene. Geochemistry, Geophysics, Geosystems, 3(10), 1060, https://doi.org/10.1029/2002GC000348 Sirocko, Frank; Sarnthein, Michael; Erlenkeuser, Helmut; Lange, Heinz; Arnold, Maurice; Duplessy, Jean-Claude (1993): Century-scale events in monsoonal climate over the past 24,000 years. Nature, 364, 322-324, https://doi.org/10.1038/364322a0 https://doi.pangaea.de/10.1594/PANGAEA.834601 https://doi.org/10.1594/PANGAEA.834601 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Huguet, Carme; Kim, Jung-Hyun; Sinninghe Damsté, Jaap S; Schouten, Stefan (2006): Reconstruction of sea surface temperature variations in the Arabian Sea over the last 23 kyr using organic proxies (TEX86 and UK'37). Paleoceanography, 21(3), PA3003, https://doi.org/10.1029/2005PA001215 Age 14C AMS 14C calibrated dated dated standard error maximum/old minimum/young Arabian Sea Calendar age Depth bottom/max sediment/rock top/min Event label KAL Kasten corer KL-74 AS-12 NIOP-C2 NIOP-C2_905_PC PC Piston corer Reference/source Reservoir effect/correction standard deviation SO42 SO42-74KL Sonne Tyro dataset 2006 ftpangaea https://doi.org/10.1594/PANGAEA.83460110.1029/2005PA00121510.1029/2002GC00034810.1038/364322a0 2024-08-06T23:37:39Z Two sediment cores from the western Arabian Sea, NIOP905 and 74KL, were analyzed to determine sea surface temperature (SST) variations over the last 23 kyr. Two organic molecular SST proxies were used, the well-established UK'37 based on long-chain unsaturated ketones synthesized by haptophyte algae and the newly proposed TEX86 derived from the membrane lipids of Crenarchaeota. Comparison of NIOP905 and 74KL core top data with present-day SST (0-10 m) values indicates that both proxies yield temperatures similar to local annual mean SSTs. However, TEX86 and UK'37 SST down-core records derived from the same cores differ in magnitude and phasing. The alkenone SST record of NIOP905 shows small changes in SST (~0.5°C) over the last 23 kyr, while that of core 74KL shows a ~2°C increase from the Last Glacial Maximum (LGM) (23-19 calendar (cal) kyr B.P.) through the Holocene (the last 11.5 cal kyr B.P.) synchronous with changes in the Northern Hemisphere. In contrast, the TEX86 records of both cores show a large increase in SST from 22°-23°C in the LGM to 28°-30°C during Termination I (19-11.5 cal kyr B.P.), decreasing to present-day annual means of ~26°C. A cold phase between 14.5 and 12 cal kyr B.P. that may correspond to the Antarctic cold reversal is also observed. This implies a Southern Hemisphere control on tropical SST reconstructed by the TEX86, possibly related to SW monsoon. Our results suggest that the application of both TEX86 and UK'37 give different but complementary information on SST developments in past marine environments. Dataset Antarc* Antarctic PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(51.950000,57.347000,14.321000,10.766660) |