élément lithophile à grand rayon ionique

CONT: Les éléments lithophiles à grand rayon ionique apparaissent en concentrations variables mais élevées (ex., Ba = 62-1920 ppm, Sr = 176-2567 ppm), comparativement aux concentrations des éléments à forte intensité de champ (ex., Y = 10-37 ppm, Zr = 8-421 ppm), et les éléments à terre rare légère sont beaucoup plus abondants que les éléments à terre rare lourde (La/Lu = 24-330).
OBS: élément lithophile à grand rayon ionique; élément lithophile de grand diamètre ionique : termes en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

CONT: Large-ion lithophile elements (LILE) are present at variable but high concentrations (e.g., Ba = 62-1920 ppm, Sr = 176-2567 ppm) relative to most high field strength element (HFSE) abundances (e.g., Y = 10-37 ppm, Zr = 8-421 ppm), and light rare-earth elements (LREE) have much higher concentrations than heavy rare-earth elements (HREE) (La/Lu = 24-330).
CONT: The ratios between moderately volatile large ion lithophile (LIL) elements, such as K and Rb, and refractory LIL elements, such as Th, U, and the LREE are very important constraints on models for the origin and chemical composition of the primitive mantles of planets ...