Data · dataset · 2006
Valve concentration of Ethmodiscus sp. and carbon in sediment core GeoB3801-6
Listed in DataCite
Within generally calcareous sediment sequences, layers of variable thickness of the giant diatom Ethmodiscus were found in five cores recovered in the Subtropical South Atlantic between 23° and 33°S from both sides of the Mid-Atlantic Ridge.
Description
Two types of oozes occur: (almost) monospecific layers of Ethmodiscus and layers dominated by Ethmodiscus, with several accompanying tropical/subtropical, oligotrophic-water diatoms.
The two thickest Ethmodiscus layers occur in GeoB3801-6 around 29°S, and accumulated during late MIS 14 and MIS 12, respectively. Downcore concentrations of Ethmodiscus valves range between 3.4 10 4 and 2.3 10 7 valves g -1. We discuss the ooze formation in the context of migration of frontal systems and changes in the thermohaline circulation.
Read the rest (1 more)
The occurrence of Ethmodiscus oozes in sediments underlying the present-day pelagic, low-nutrient waters is associated with a terminal event of the Mid-Pleistocene Transition at around 530 ka, when the ocean circulation rearranged after a period of reduced NADW production.
Links
Where it is published
- Repository landing page doi.pangaea.de/10.1594/PANGAEA.327024 ↗
landing page · from DataCite
- DOI doi.org/10.1594/pangaea.327024 ↗
DOI / persistent id · from DataCite
Documentation and papers
- Creative Commons Attribution 3.0 Unported creativecommons.org/licenses/by/3.0/legalcode ↗
license · from DataCite
- IsSupplementTo 10.1016/j.palaeo.2005.10.026 doi.org/10.1016/j.palaeo.2005.10.026 ↗
publication · from DataCite
Catalogue records · 2
- DataCite API api.datacite.org/dois/10.1594/pangaea.327024 ↗
metadata API · from DataCite
- DataCite Commons commons.datacite.org/doi.org/10.1594/pangaea.327024 ↗
catalogue entry · from DataCite
Provenance · 1 source records, 6 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| DataCite | 10.1594/pangaea.327024 | 13 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · DataCite | connector:datacite@1.0.0 | /data/attributes/rightsList |
| description | source · DataCite | connector:datacite@1.0.0 | /data/attributes/descriptions |
| license | source · DataCite | connector:datacite@1.0.0 | /data/attributes/rightsList |
| publication_date | source · DataCite | connector:datacite@1.0.0 | /data/attributes/dates |
| spatial | source · DataCite | connector:datacite@1.0.0 | |
| title | source · DataCite | connector:datacite@1.0.0 | /data/attributes/titles/0/title |