@article{fdi:010076475, title = {{N}orthward drift of the {A}zores plume in the {E}arth's mantle}, author = {{A}rnould, {M}. and {G}anne, {J}{\'e}r{\^o}me and {C}oltice, {N}. and {F}eng, {X}. {J}.}, editor = {}, language = {{ENG}}, abstract = {{M}antle plume fixity has long been a cornerstone assumption to reconstruct past tectonic plate motions. {H}owever, precise geochronological and paleomagnetic data along {P}acific continuous hotspot tracks have revealed substantial drift of the {H}awaiian plume. {T}he question remains for evidence of drift for other mantle plumes. {H}ere, we use plume-derived basalts from the {M}id-{A}tlantic ridge to confirm that the upper-mantle thermal anomaly associated with the {A}zores plume is asymmetric, spreading over similar to 2,000 km southwards and similar to 600 km northwards. {U}sing for the first time a 3{D}-spherical mantle convection where plumes, ridges and plates interact in a fully dynamic way, we suggest that the extent, shape and asymmetry of this anomaly is a consequence of the {A}zores plume moving northwards by 1-2 cm/yr during the past 85 {M}a, independently from other {A}tlantic plumes. {O}ur findings suggest redefining the {A}zores hotspot track and open the way for identifying how plumes drift within the mantle.}, keywords = {{ATLANTIQUE} ; {PORTUGAL} ; {ACORES} {PLATEAU}}, booktitle = {}, journal = {{N}ature {C}ommunications}, volume = {10}, numero = {}, pages = {3235 [8 ]}, ISSN = {2041-1723}, year = {2019}, DOI = {10.1038/s41467-019-11127-7}, URL = {https://www.documentation.ird.fr/hor/fdi:010076475}, }