The formation epoch and tectonic environment of quartz monzonite diorite in Sartokay, east Junggar, Xinjiang

Quartz monzonite diorite in Sartokay of east Junggar belongs to the Paleozoic Ertix tectonic-magmatic belt. Rock geochemistry shows that quartz monzonite diorite in Sartokay belongs to magnesian grantoid of metaluminous, high-K calc-alkaline series, with enrichment of LILE, depletion of HFSE, and concentration of LREE. LREE and HREE fractionating degree is relatively high, and the negative anomaly of Eu is not obvious. The age of 277.4±5.1Ma indicates Early Permian after the collision in an intraplate tectonic environment.