Pulleniatina obliquiloculata Mg/Ca-derived thermocline water temperature records over the last two glacial-interglacial cycles from sediment core MD98-2165 off southern Lombok Strait
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| Formato: | Dataset Open Access |
| Lenguaje: | en |
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PANGAEA
2021
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| _version_ | 1867171874125905920 |
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| author | Pang, Xiaolei Bassinot, Franck Sépulcre, Sophie |
| author_facet | Pang, Xiaolei Bassinot, Franck Sépulcre, Sophie |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | We present a Pulleniatina obliquiloculata Mg/Ca-derived thermocline water temperature record (TWT) covering the last 270,000 years from sediment core MD98-2165 (9.65S, 118.34E) at the south of the Lombok Strait, one of the main exits of the Indonesian Throughflow (ITF) into the Indian Ocean. The sediment core MD98-2165 was retrieved at a water depth of 2100 m during the IMAGES IV cruise of the French R/V Marion Dufresne. For measuring P. obliquiloculata Mg/Ca ratio, Core MD98-2165 was sampled at 4-12 cm interval during the 110-3450 cm depth interval, corresponding to 1.5 – 270 ka. About 30 tests of P. obliquiloculata were picked from the 250-355 µm size fraction. Samples were cleaned without using reductive step. Mg/Ca ratios were converted to temperatures by using calibration equation: Mg/Ca = 0.328 exp (0.09*T). Mg/Ca ratio of P.obliquiloculata vary between 1.6 and 3.1 mmol/mol, corresponding to TWT ranging between 17.8 and 25.1 °C. This reconstructed TWT record from sediment core MD98-2165 is used to study ITF change at orbital and glacial-interglacial timescales. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_929574 |
| institution | PANGAEA |
| language | en |
| publishDate | 2021 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Pulleniatina obliquiloculata Mg/Ca-derived thermocline water temperature records over the last two glacial-interglacial cycles from sediment core MD98-2165 off southern Lombok Strait Pang, Xiaolei Bassinot, Franck Sépulcre, Sophie AGE; CALYPSO; Calypso Corer; DEPTH, sediment/rock; IMAGES IV-IPHIS III; Indian Ocean; Indonesian Throughflow; Java upwelling; Marion Dufresne (1995); MD111; MD982165; MD98-2165; Pleistocene; Pulleniatina obliquiloculata, Magnesium/Calcium ratio; thermocline water temperature; Thermocline water temperature We present a Pulleniatina obliquiloculata Mg/Ca-derived thermocline water temperature record (TWT) covering the last 270,000 years from sediment core MD98-2165 (9.65S, 118.34E) at the south of the Lombok Strait, one of the main exits of the Indonesian Throughflow (ITF) into the Indian Ocean. The sediment core MD98-2165 was retrieved at a water depth of 2100 m during the IMAGES IV cruise of the French R/V Marion Dufresne. For measuring P. obliquiloculata Mg/Ca ratio, Core MD98-2165 was sampled at 4-12 cm interval during the 110-3450 cm depth interval, corresponding to 1.5 – 270 ka. About 30 tests of P. obliquiloculata were picked from the 250-355 µm size fraction. Samples were cleaned without using reductive step. Mg/Ca ratios were converted to temperatures by using calibration equation: Mg/Ca = 0.328 exp (0.09*T). Mg/Ca ratio of P.obliquiloculata vary between 1.6 and 3.1 mmol/mol, corresponding to TWT ranging between 17.8 and 25.1 °C. This reconstructed TWT record from sediment core MD98-2165 is used to study ITF change at orbital and glacial-interglacial timescales. |
| title | Pulleniatina obliquiloculata Mg/Ca-derived thermocline water temperature records over the last two glacial-interglacial cycles from sediment core MD98-2165 off southern Lombok Strait |
| topic | AGE; CALYPSO; Calypso Corer; DEPTH, sediment/rock; IMAGES IV-IPHIS III; Indian Ocean; Indonesian Throughflow; Java upwelling; Marion Dufresne (1995); MD111; MD982165; MD98-2165; Pleistocene; Pulleniatina obliquiloculata, Magnesium/Calcium ratio; thermocline water temperature; Thermocline water temperature |
| url | https://doi.org/10.1594/PANGAEA.929574 |