Stable oxygen and carbon isotope ratios of Globigerinoides sacculifer of ODP Hole 134-828A from the Southwest Pacific (Table 2)
Oxygen-isotope analyses of planktonic foraminifera from 57 western Pacific deep-sea cores are compared for the Holocene and the Last Glacial Maximum (LGM). Carbonate dissolution, sedimentation rates/bioturbation, sample density, and vital effects are assessed before the sea-surface salinity signal o...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.690363 2023-05-15T18:01:05+02:00 Stable oxygen and carbon isotope ratios of Globigerinoides sacculifer of ODP Hole 134-828A from the Southwest Pacific (Table 2) Martínez, José Ignacio De Deckker, Patrick Chivas, Allan R LATITUDE: -15.288000 * LONGITUDE: 166.284000 * DATE/TIME START: 1990-10-25T11:00:00 * DATE/TIME END: 1990-10-26T21:30:00 * MINIMUM DEPTH, sediment/rock: 0.45 m * MAXIMUM DEPTH, sediment/rock: 61.62 m 1997-03-28 text/tab-separated-values, 657 data points https://doi.pangaea.de/10.1594/PANGAEA.690363 https://doi.org/10.1594/PANGAEA.690363 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.690363 https://doi.org/10.1594/PANGAEA.690363 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Martínez, José Ignacio; De Deckker, Patrick; Chivas, Allan R (1997): New estimates for salinity changes in the Western Pacific Warm Pool during the Last Glacial Maximum: oxygen-isotope evidence. Marine Micropaleontology, 32(3-4), 311-340, https://doi.org/10.1016/S0377-8398(97)00029-7 134-828A Coral Sea DEPTH sediment/rock DRILL Drilling/drill rig DSDP/ODP/IODP sample designation Globigerinoides sacculifer δ13C δ18O Joides Resolution Leg134 Mass spectrometer Finnigan MAT 251 Ocean Drilling Program ODP Sample code/label Dataset 1997 ftpangaea https://doi.org/10.1594/PANGAEA.690363 https://doi.org/10.1016/S0377-8398(97)00029-7 2023-01-20T08:45:38Z Oxygen-isotope analyses of planktonic foraminifera from 57 western Pacific deep-sea cores are compared for the Holocene and the Last Glacial Maximum (LGM). Carbonate dissolution, sedimentation rates/bioturbation, sample density, and vital effects are assessed before the sea-surface salinity signal of these records is reconstructed. Average glacial-interglacial Delta delta18O values in the western Pacific are found to be close to those in the Atlantic Ocean (1.76 ‰ in the Pacific compared to 1.80 ‰ in the Atlantic), questioning previous suggestions of a larger salinity difference between the Atlantic and the Pacific oceans during the LGM. During the LGM, sea-surface salinity was higher in the western Pacific than today (by >~1 ‰), implying that evaporation minus precipitation was higher all over the region. The minimum change in sea-surface salinity occurred around the equator at the core of the Western Pacific Warm Pool. Holocene high-amplitude, high-frequency fluctuations in planktonic delta18O records north and south of the present limits of the Western Pacific Warm Pool are indicative of sea-surface temperature and/or sea-surface salinity variations related to its expansion and contraction at the scale of thousands of years. Such high-amplitude, high-frequency fluctuations at the edge of the WPWP are best documented in the delta18O signal of ODP Hole 828A offshore Vanuatu, so far the best high-resolution record for the western Pacific. Dataset Planktonic foraminifera PANGAEA - Data Publisher for Earth & Environmental Science Pacific ENVELOPE(166.284000,166.284000,-15.288000,-15.288000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
134-828A Coral Sea DEPTH sediment/rock DRILL Drilling/drill rig DSDP/ODP/IODP sample designation Globigerinoides sacculifer δ13C δ18O Joides Resolution Leg134 Mass spectrometer Finnigan MAT 251 Ocean Drilling Program ODP Sample code/label |
spellingShingle |
134-828A Coral Sea DEPTH sediment/rock DRILL Drilling/drill rig DSDP/ODP/IODP sample designation Globigerinoides sacculifer δ13C δ18O Joides Resolution Leg134 Mass spectrometer Finnigan MAT 251 Ocean Drilling Program ODP Sample code/label Martínez, José Ignacio De Deckker, Patrick Chivas, Allan R Stable oxygen and carbon isotope ratios of Globigerinoides sacculifer of ODP Hole 134-828A from the Southwest Pacific (Table 2) |
topic_facet |
134-828A Coral Sea DEPTH sediment/rock DRILL Drilling/drill rig DSDP/ODP/IODP sample designation Globigerinoides sacculifer δ13C δ18O Joides Resolution Leg134 Mass spectrometer Finnigan MAT 251 Ocean Drilling Program ODP Sample code/label |
description |
Oxygen-isotope analyses of planktonic foraminifera from 57 western Pacific deep-sea cores are compared for the Holocene and the Last Glacial Maximum (LGM). Carbonate dissolution, sedimentation rates/bioturbation, sample density, and vital effects are assessed before the sea-surface salinity signal of these records is reconstructed. Average glacial-interglacial Delta delta18O values in the western Pacific are found to be close to those in the Atlantic Ocean (1.76 ‰ in the Pacific compared to 1.80 ‰ in the Atlantic), questioning previous suggestions of a larger salinity difference between the Atlantic and the Pacific oceans during the LGM. During the LGM, sea-surface salinity was higher in the western Pacific than today (by >~1 ‰), implying that evaporation minus precipitation was higher all over the region. The minimum change in sea-surface salinity occurred around the equator at the core of the Western Pacific Warm Pool. Holocene high-amplitude, high-frequency fluctuations in planktonic delta18O records north and south of the present limits of the Western Pacific Warm Pool are indicative of sea-surface temperature and/or sea-surface salinity variations related to its expansion and contraction at the scale of thousands of years. Such high-amplitude, high-frequency fluctuations at the edge of the WPWP are best documented in the delta18O signal of ODP Hole 828A offshore Vanuatu, so far the best high-resolution record for the western Pacific. |
format |
Dataset |
author |
Martínez, José Ignacio De Deckker, Patrick Chivas, Allan R |
author_facet |
Martínez, José Ignacio De Deckker, Patrick Chivas, Allan R |
author_sort |
Martínez, José Ignacio |
title |
Stable oxygen and carbon isotope ratios of Globigerinoides sacculifer of ODP Hole 134-828A from the Southwest Pacific (Table 2) |
title_short |
Stable oxygen and carbon isotope ratios of Globigerinoides sacculifer of ODP Hole 134-828A from the Southwest Pacific (Table 2) |
title_full |
Stable oxygen and carbon isotope ratios of Globigerinoides sacculifer of ODP Hole 134-828A from the Southwest Pacific (Table 2) |
title_fullStr |
Stable oxygen and carbon isotope ratios of Globigerinoides sacculifer of ODP Hole 134-828A from the Southwest Pacific (Table 2) |
title_full_unstemmed |
Stable oxygen and carbon isotope ratios of Globigerinoides sacculifer of ODP Hole 134-828A from the Southwest Pacific (Table 2) |
title_sort |
stable oxygen and carbon isotope ratios of globigerinoides sacculifer of odp hole 134-828a from the southwest pacific (table 2) |
publisher |
PANGAEA |
publishDate |
1997 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.690363 https://doi.org/10.1594/PANGAEA.690363 |
op_coverage |
LATITUDE: -15.288000 * LONGITUDE: 166.284000 * DATE/TIME START: 1990-10-25T11:00:00 * DATE/TIME END: 1990-10-26T21:30:00 * MINIMUM DEPTH, sediment/rock: 0.45 m * MAXIMUM DEPTH, sediment/rock: 61.62 m |
long_lat |
ENVELOPE(166.284000,166.284000,-15.288000,-15.288000) |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_source |
Supplement to: Martínez, José Ignacio; De Deckker, Patrick; Chivas, Allan R (1997): New estimates for salinity changes in the Western Pacific Warm Pool during the Last Glacial Maximum: oxygen-isotope evidence. Marine Micropaleontology, 32(3-4), 311-340, https://doi.org/10.1016/S0377-8398(97)00029-7 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.690363 https://doi.org/10.1594/PANGAEA.690363 |
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.690363 https://doi.org/10.1016/S0377-8398(97)00029-7 |
_version_ |
1766170431089278976 |