mouvement absolu

OBS: Le mouvement d'une plaque peut se mesurer de deux façons : par rapport à un point chaud (mouvement absolu); par rapport à une autre plaque (mouvement relatif).
OBS: mouvement absolu : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

CONT: Absolute motions of the Pacific and America plates are defined as motions relative to the ""hot spot"" framework. This framework is based on the conclusion that, whereas hot spots ... may slowly move with respect to each other, the rates are generally much less than the relative plate motion rates. Motions relative to hot spots can only be obtained on a larger time scale (>5 Ma) and are less accurate than relative motions.
OBS: absolute motion: term used at Natural Resources Canada - Earth Sciences Sector.