Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Dataset Open Access |
| Language: | en |
| Published: |
PANGAEA
2005
|
| Subjects: | |
| Online Access: | https://doi.org/10.1594/PANGAEA.711655 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1867171357223026688 |
|---|---|
| author | Wien, Katharina Kölling, Martin Schulz, Horst D |
| author_facet | Wien, Katharina Kölling, Martin Schulz, Horst D |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | High-resolution records of Ca and Sr were obtained from shipboard XRF analyses of bulk sediments in five gravity cores from the southern Cape Basin, South Atlantic Ocean. Sr/Ca ratios display regular glacial/interglacial variations of 14-40% and reveal a close correlation with the SPECMAP record, minimum Sr/Ca ratios appearing during glacial (delta18 O) maxima, distinct increases during periods of deglaciation, and highest ratios in interstadials. Shifts in carbonate-producing phytoplankton and/or zooplankton assemblages over glacial/interglacial cycles are suggested to be the main cause for the observed variations in Sr/Ca patterns. Quick assessment of the relationship between Sr/Ca ratios and the SPECMAP record made it possible to easily transfer an age model to the newly collected cores already during the cruise. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_711655 |
| institution | PANGAEA |
| language | en |
| publishDate | 2005 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Element concentrations of bulk sediment from the Southern Cape Basin Wien, Katharina Kölling, Martin Schulz, Horst D GeoB2004-3; GeoB8301-6; GeoB8307-6; GeoB8310-2; GeoB8315-6; Gravity corer (Kiel type); M23/1; M57/1; Meteor (1986); SL; South African margin High-resolution records of Ca and Sr were obtained from shipboard XRF analyses of bulk sediments in five gravity cores from the southern Cape Basin, South Atlantic Ocean. Sr/Ca ratios display regular glacial/interglacial variations of 14-40% and reveal a close correlation with the SPECMAP record, minimum Sr/Ca ratios appearing during glacial (delta18 O) maxima, distinct increases during periods of deglaciation, and highest ratios in interstadials. Shifts in carbonate-producing phytoplankton and/or zooplankton assemblages over glacial/interglacial cycles are suggested to be the main cause for the observed variations in Sr/Ca patterns. Quick assessment of the relationship between Sr/Ca ratios and the SPECMAP record made it possible to easily transfer an age model to the newly collected cores already during the cruise. |
| title | Element concentrations of bulk sediment from the Southern Cape Basin |
| topic | GeoB2004-3; GeoB8301-6; GeoB8307-6; GeoB8310-2; GeoB8315-6; Gravity corer (Kiel type); M23/1; M57/1; Meteor (1986); SL; South African margin |
| url | https://doi.org/10.1594/PANGAEA.711655 |