Hydroclimate records from the eastern tropical Indian Ocean of sediment core SO189-39KL
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| Format: | Dataset Open Access |
| Langue: | en |
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PANGAEA
2024
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| _version_ | 1867172202077487104 |
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| author | Mohtadi, Mahyar Prange, Matthias Oppo, Delia W De Pol-Holz, Ricardo Merkel, Ute Zhang, Xiao Steinke, Stephan Lückge, Andreas |
| author_facet | Mohtadi, Mahyar Prange, Matthias Oppo, Delia W De Pol-Holz, Ricardo Merkel, Ute Zhang, Xiao Steinke, Stephan Lückge, Andreas |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Planktic foraminiferal oxygen isotopes, Mg/Ca and Mg/Ca-derived SST estimates of sediment core SO189/2_039KL. The isotopic composition of the samples was measured using a Finnigan MAT 251 mass spectrometer, which is connected with automatic lines for carbonate preparation. For all stable isotope measurements, a working standard was used, which has been calibrated against VPDB (Vienna Pee Dee Belemnite) by using the NBS 19 standard. The long‐term analytical standard deviation is about ±0.07‰ (Isotope Laboratory at Faculty of Geosciences, University of Bremen). For Mg/Ca analysis, samples were cleaned by applying a slight modification of the method originally proposed by Barker et al. (2003). Mg/Ca measurements were performed at MARUM, University of Bremen, using a Perkin ElmerOptima 3300 R inductively coupled plasma optical emission spectrophotometer (ICP-OES) equipped with an autosampler and a U-5000 AT ultrasonic nebulizer (Cetac Technologies). Mg/Ca ratios were converted to temperature following the multispecies Mg/Ca-temperature calibration of Anand et al. (2003; doi:10.1029/2002PA000846). To calculate the δ18O of seawater, the δ18O:temperature equation of Bemis et al. (1998; doi:10.1029/98PA00070) was used. The values were then converted to standard mean ocean water (SMOW) by adding 0.27% and corrected for sea-level changes following Waelbroeck et al. (2002; doi:10.1016/S0277-3791(01)00101-9). |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_971792 |
| institution | PANGAEA |
| language | en |
| publishDate | 2024 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Hydroclimate records from the eastern tropical Indian Ocean of sediment core SO189-39KL Mohtadi, Mahyar Prange, Matthias Oppo, Delia W De Pol-Holz, Ricardo Merkel, Ute Zhang, Xiao Steinke, Stephan Lückge, Andreas AGE; Calculated, according to Anand et al. (2003); Center for Marine Environmental Sciences; DEPTH, sediment/rock; Globigerinoides ruber sensu stricto, Magnesium/Calcium ratio; Globigerinoides ruber sensu stricto, δ18O; ICP-OES, Perkin-Elmer, Optima 3300R; Indian Ocean; KL; MARUM; Mass spectrometer Finnigan MAT 251; Piston corer (BGR type); Sea surface temperature, annual mean; SO189/2; SO189/2_039KL; Sonne; SUMATRA; δ18O, water Planktic foraminiferal oxygen isotopes, Mg/Ca and Mg/Ca-derived SST estimates of sediment core SO189/2_039KL. The isotopic composition of the samples was measured using a Finnigan MAT 251 mass spectrometer, which is connected with automatic lines for carbonate preparation. For all stable isotope measurements, a working standard was used, which has been calibrated against VPDB (Vienna Pee Dee Belemnite) by using the NBS 19 standard. The long‐term analytical standard deviation is about ±0.07‰ (Isotope Laboratory at Faculty of Geosciences, University of Bremen). For Mg/Ca analysis, samples were cleaned by applying a slight modification of the method originally proposed by Barker et al. (2003). Mg/Ca measurements were performed at MARUM, University of Bremen, using a Perkin ElmerOptima 3300 R inductively coupled plasma optical emission spectrophotometer (ICP-OES) equipped with an autosampler and a U-5000 AT ultrasonic nebulizer (Cetac Technologies). Mg/Ca ratios were converted to temperature following the multispecies Mg/Ca-temperature calibration of Anand et al. (2003; doi:10.1029/2002PA000846). To calculate the δ18O of seawater, the δ18O:temperature equation of Bemis et al. (1998; doi:10.1029/98PA00070) was used. The values were then converted to standard mean ocean water (SMOW) by adding 0.27% and corrected for sea-level changes following Waelbroeck et al. (2002; doi:10.1016/S0277-3791(01)00101-9). |
| title | Hydroclimate records from the eastern tropical Indian Ocean of sediment core SO189-39KL |
| topic | AGE; Calculated, according to Anand et al. (2003); Center for Marine Environmental Sciences; DEPTH, sediment/rock; Globigerinoides ruber sensu stricto, Magnesium/Calcium ratio; Globigerinoides ruber sensu stricto, δ18O; ICP-OES, Perkin-Elmer, Optima 3300R; Indian Ocean; KL; MARUM; Mass spectrometer Finnigan MAT 251; Piston corer (BGR type); Sea surface temperature, annual mean; SO189/2; SO189/2_039KL; Sonne; SUMATRA; δ18O, water |
| url | https://doi.org/10.1594/PANGAEA.971792 |