FN Archimer Export Format PT J TI Asymmetry of the mantle structure beneath the Mid-Atlantic Ridge BT AF GOSLIN, J ASLANIAN, Daniel AS 1:1;2:1; FF 1:;2:; C1 Ifremer, France C2 IFREMER, FRANCE IF 2.719 TC 5 UR https://archimer.ifremer.fr/doc/00288/39941/38487.pdf LA English DT Article AB 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. PY 1992 PD JUL SO Geophysical Research Letters SN 0094-8276 PU Amer Geophysical Union VL 19 IS 11 UT A1992HX65200025 BP 1165 EP 1168 DI 10.1029/92GL00918 ID 39941 ER EF