Shoshonite combination is a Si O2 close to saturation

moderate alkali-rich

relatively rich in K

and Fe-poor rock combination; belonging to sub-alkaline series（including tholeiitic and calc-alkaline series） between alkaline series transition type. This paper summarizes the main characteristics distinguish shoshonitic rock material sources petrogenesis and tectonic setting. Because shoshonitic rocks have a special meaning in Genesis science and regional tectonic evolution of the rocks

and is an important symbol of prospecting

so more attention to this combination of rock in recent years.