Archive · collection · 1983
Magnetostratigraphy of DSDP Leg 73 in the South Atlantic
Listed in PANGAEA and DataCite — shown once because both records carry DOI 10.1594/pangaea.701751
The main objective of DSDP Leg 73 was to obtain high-quality records of major paleooceanographic events in the South Atlantic.
Description
This was achieved by coring six sites on the African plate. The sediments thus recovered span the Cenozoic and five of the six sites proved ideally suited for magnetostratigraphic analysis.
The results presented in this paper and elsewhere in this volume constitute the first opportunity to extend the direct correlation of the magnetostratigraphic and biostratigraphic time-scales into the Paleogene in deep-sea cores. The magnetostratigraphic analyses from DSDP Leg 73 sediments are presented in this paper. The correlation of the magnetostratigraphy to the magnetic polarity time-scale provides tight age-depth control for the five sites analyzed, allowing the accurate calculation of sediment accumulation rates.
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The data presented here represent a remarkable record of the fine-scale polarity history of the Earth's magnetic field. These data place constraints on the interpretation of smallscale marine magnetic anomalies which are modelled equally effectively by field intensity fluctuations as polarity reversals. At least some of the "tiny wiggles" correspond to very short polarity units in the magnetostratigraphic record.
By assuming an axial geocentric dipole, the inclination of the time-averaged magnetic field recorded in the sediments can be used to calculate the paleolatitude at which the sediments were deposited. Combining the age and average inclination information available from the magnetostratigraphy, we present paleolatitudes versus time for the Leg 73 drill sites.
Links
Where it is published
- Repository landing page doi.pangaea.de/10.1594/PANGAEA.701751 ↗
landing page · from DataCite
- DOI doi.org/10.1594/pangaea.701751 ↗
DOI / persistent id · from PANGAEA
Documentation and papers
- Creative Commons Attribution 3.0 Unported creativecommons.org/licenses/by/3.0/legalcode ↗
license · from DataCite
- IsSupplementTo 10.1016/0031-0182(83)90039-1 doi.org/10.1016/0031-0182(83)90039-1 ↗
publication · from DataCite
- References 10.2973/dsdp.proc.73.123.1984 doi.org/10.2973/dsdp.proc.73.123.1984 ↗
publication · from DataCite
Catalogue records · 3
- DataCite API api.datacite.org/dois/10.1594/pangaea.701751 ↗
metadata API · from DataCite
- OAI-PMH record ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=oai_dc&identifier=o… ↗
metadata API · from PANGAEA
- DataCite Commons commons.datacite.org/doi.org/10.1594/pangaea.701751 ↗
catalogue entry · from DataCite
Topics
- From keywords
- Earth & Environmental Science
Provenance · 2 source records, 7 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| PANGAEA | oai:pangaea.de:doi:10.1594/PANGAEA.701751 | 14 d ago | JSON v1 |
| DataCite | 10.1594/pangaea.701751 | 14 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · PANGAEA | connector:pangaea@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · PANGAEA | connector:pangaea@1.0.0 | |
| description | source · PANGAEA | connector:pangaea@1.0.0 | /metadata/dc/description |
| license | source · PANGAEA | connector:pangaea@1.0.0 | /metadata/dc/rights |
| publication_date | source · PANGAEA | connector:pangaea@1.0.0 | |
| spatial | source · PANGAEA | connector:pangaea@1.0.0 | |
| title | source · PANGAEA | connector:pangaea@1.0.0 | /metadata/dc/title |