In this paper

based on the study of the Indosinian granite in southern China in recent years

a series of research and discussion on the main elements

trace elements and rare earth elements of granite are carried out. It is found that the geochemical characteristics of most Indosinian granites are similar to those of the main element elements

and the magmatic evolution has undergone the separation and crystallization of the plagioclase. The Indosinian granites in South China are mainly divided into high-calcium calc-alkaline granite; Indosinian granite rare earth elements are obviously characterized by M-type four-grouping effect

Nb is obviously relative to Ta loss

and the source discrimination shows that it is partly from the continental crustal sedimentary rocks and continental crustal sedimentary rocks

Mantle material involved.