Asymmetry of the mantle structure beneath the Mid-Atlantic Ridge
Altimetry data from repetitive orbits of the GEOSAT satellite are interpreted together with sea-floor depths over the Mid-Atlantic Ridge, South of Iceland and South of the Azores. Geoid / Topography ratios indicate a strong asymmetry of the upper mantle structure in oceanic areas created since 35 My...
| Published in: | Geophysical Research Letters |
|---|---|
| Main Authors: | , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Amer Geophysical Union
1992
|
| Subjects: | |
| Online Access: | https://archimer.ifremer.fr/doc/00288/39941/38487.pdf https://doi.org/10.1029/92GL00918 https://archimer.ifremer.fr/doc/00288/39941/ |
| Summary: | Altimetry data from repetitive orbits of the GEOSAT satellite are interpreted together with sea-floor depths over the Mid-Atlantic Ridge, South of Iceland and South of the Azores. Geoid / Topography ratios indicate a strong asymmetry of the upper mantle structure in oceanic areas created since 35 My, extending several hundreds kilometers from Iceland to the Azores. A model including interaction between the MAR and two layers of mantle convection seems adequate to produce the observed asymmetry. |
|---|