Magnesium/calcium ratio of the foraminifera Oridorsalis umbonatus in surface sediment samples off Namibia
Fuente:
PANGAEA
Gespeichert in:
| Hauptverfasser: | , , , |
|---|---|
| Format: | Dataset Open Access |
| Sprache: | en |
| Veröffentlicht: |
PANGAEA
2004
|
| Schlagworte: | |
| Online-Zugang: | |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1867167661925859328 |
|---|---|
| author | Rathmann, Söhnke Hess, Silvia Kuhnert, Henning Mulitza, Stefan |
| author_facet | Rathmann, Söhnke Hess, Silvia Kuhnert, Henning Mulitza, Stefan |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | A laser ablation system connected to an inductively coupled plasma mass spectrometer was used to determine Mg/Ca ratios of the benthic foraminifera Oridorsalis umbonatus. A set of modern core top samples collected along a depth transect on the continental slope off Namibia (320-2300 m water depth; 2.9° to 10.4°C) was used to calibrate the Mg/Ca ratio against bottom water temperature. The resulting Mg/Ca-bottom water temperature relationship of O. umbonatus is described by the exponential equation Mg/Ca = 1.528*e**0.09*BWT. The temperature sensitivity of this equation is similar to previously published calibrations based on Cibicidoides species, suggesting that the Mg/Ca ratio of O. umbonatus is a valuable proxy for thermocline and deep water temperature. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_726732 |
| institution | PANGAEA |
| language | en |
| publishDate | 2004 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Magnesium/calcium ratio of the foraminifera Oridorsalis umbonatus in surface sediment samples off Namibia Rathmann, Söhnke Hess, Silvia Kuhnert, Henning Mulitza, Stefan Center for Marine Environmental Sciences; GeoB8403-1; GeoB8430-2; GeoB8449-1; GeoB8450-1; GeoB8452-1; GeoB8462-4; M57/2; MARUM; Meteor (1986); MUC; MultiCorer; Walvis Bay/Namibia A laser ablation system connected to an inductively coupled plasma mass spectrometer was used to determine Mg/Ca ratios of the benthic foraminifera Oridorsalis umbonatus. A set of modern core top samples collected along a depth transect on the continental slope off Namibia (320-2300 m water depth; 2.9° to 10.4°C) was used to calibrate the Mg/Ca ratio against bottom water temperature. The resulting Mg/Ca-bottom water temperature relationship of O. umbonatus is described by the exponential equation Mg/Ca = 1.528*e**0.09*BWT. The temperature sensitivity of this equation is similar to previously published calibrations based on Cibicidoides species, suggesting that the Mg/Ca ratio of O. umbonatus is a valuable proxy for thermocline and deep water temperature. |
| title | Magnesium/calcium ratio of the foraminifera Oridorsalis umbonatus in surface sediment samples off Namibia |
| topic | Center for Marine Environmental Sciences; GeoB8403-1; GeoB8430-2; GeoB8449-1; GeoB8450-1; GeoB8452-1; GeoB8462-4; M57/2; MARUM; Meteor (1986); MUC; MultiCorer; Walvis Bay/Namibia |
| url | https://doi.org/10.1594/PANGAEA.726732 |