The geochemical indicatrixes of the REE in Li F granite liquid segregation.
Li-F花岗岩液态分离的稀土地球化学标志

The results of 118 REE analyses of Li F granites from South China and other countries indicate that there are three variation types of REE model curves with the different evolution from early to late stages of Li F grantie complex or from lower to upper petrofacies of the Li F granite body, which are (1) decreasing,(2) increasing and (3) saltatory variation types The first variation type is called positive evolution type, which is the production of crystallization differentiation The second variation type is called reversion evolution type, which represents the liquid segregation mainly with vapour liquid fractional distillation The third variation type is called saltatory variation type, which is formed from the liquid segregation mainly with immiscibility Therefore, the indicatrixes of the liquid segregation mainly with immiscibility are the saltatory variation type of REE model evolution and the separative feature of main evolution trend line either with sub evolution trend line or with composition point of Li F granites in the diagrams of REE (La/Yb) n and La/Sm La The indicatrixes of the liquid segregation with vapour liquid fractional distillation are the reversion evolution type of REE model curves and the main evolution trend line of Li F granites is directional to the right upper part of the diagrams of REE (La/Yb) n and La/Sm La