Magnesium/Calcium ratios and sea surface temperature estimation for sediments of the Timor Sea
Fuente:
PANGAEA
Enregistré dans:
| Auteurs principaux: | , , , , |
|---|---|
| Format: | Dataset Open Access |
| Langue: | en |
| Publié: |
PANGAEA
2006
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1867171361444593664 |
|---|---|
| author | Xu, Jian Kuhnt, Wolfgang Holbourn, Ann E Andersen, Nils Bartoli, Gretta |
| author_facet | Xu, Jian Kuhnt, Wolfgang Holbourn, Ann E Andersen, Nils Bartoli, Gretta |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | We use a multiproxy approach to monitor changes in the vertical profile of the Indonesian Throughflow as well as monsoonal wind and precipitation patterns in the Timor Sea on glacial-interglacial, precessional, and suborbital timescales. We focus on an interval of extreme climate change and sea level variation: marine isotope (MIS) 6 to MIS 5e. Paleoproductivity fluctuations in the Timor Sea follow a precessional beat related to the intensity of the Australian (NW) monsoon. Paired Mg/Ca and d18O measurements of surface- and thermocline-dwelling planktonic foraminifers (G. ruber and P. obliquiloculata) indicate an increase of >4°C in both surface and thermocline water temperatures during Termination II. Tropical sea surface temperature changed synchronously with ice volume (benthic d18O) during deglaciation, implying a direct coupling of high- and low-latitude climate via atmospheric and/or upper ocean circulation. Substantial cooling and freshening of thermocline waters occurred toward the end of Termination II and during MIS 5e, indicating a change in the vertical profile of the Indonesian Throughflow from surface- to thermocline-dominated flow. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_760657 |
| institution | PANGAEA |
| language | en |
| publishDate | 2006 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Magnesium/Calcium ratios and sea surface temperature estimation for sediments of the Timor Sea Xu, Jian Kuhnt, Wolfgang Holbourn, Ann E Andersen, Nils Bartoli, Gretta Giant piston corer; GIK18460-2; GIK18462-2; GIK18480-2; GPC; IMAGES; IMAGES VII - WEPAMA; Indian Ocean; International Marine Global Change Study; Marion Dufresne (1995); MD012378; MD01-2378; MD122; MD122-MC01; MD122-MC02; MD122-MC03; MUC; MultiCorer; SO185; Sonne; Timor Sea; VITAL We use a multiproxy approach to monitor changes in the vertical profile of the Indonesian Throughflow as well as monsoonal wind and precipitation patterns in the Timor Sea on glacial-interglacial, precessional, and suborbital timescales. We focus on an interval of extreme climate change and sea level variation: marine isotope (MIS) 6 to MIS 5e. Paleoproductivity fluctuations in the Timor Sea follow a precessional beat related to the intensity of the Australian (NW) monsoon. Paired Mg/Ca and d18O measurements of surface- and thermocline-dwelling planktonic foraminifers (G. ruber and P. obliquiloculata) indicate an increase of >4°C in both surface and thermocline water temperatures during Termination II. Tropical sea surface temperature changed synchronously with ice volume (benthic d18O) during deglaciation, implying a direct coupling of high- and low-latitude climate via atmospheric and/or upper ocean circulation. Substantial cooling and freshening of thermocline waters occurred toward the end of Termination II and during MIS 5e, indicating a change in the vertical profile of the Indonesian Throughflow from surface- to thermocline-dominated flow. |
| title | Magnesium/Calcium ratios and sea surface temperature estimation for sediments of the Timor Sea |
| topic | Giant piston corer; GIK18460-2; GIK18462-2; GIK18480-2; GPC; IMAGES; IMAGES VII - WEPAMA; Indian Ocean; International Marine Global Change Study; Marion Dufresne (1995); MD012378; MD01-2378; MD122; MD122-MC01; MD122-MC02; MD122-MC03; MUC; MultiCorer; SO185; Sonne; Timor Sea; VITAL |
| url | https://doi.org/10.1594/PANGAEA.760657 |