The origin of mafic microgranular enclaves in granitoids: Insights from in situ Sr isotope of plagioclases and Zr-Hf isotopes of zircons

Mafic microgranular enclaves (MMEs) are common in many granitoid plutons and their origin is crucial for understanding the petrogenesis and tectonic setting of their hosts. Most previous workers have studied MMEs by using in situ zircon U-Pb and Hf-O isotopes. However, whether the zircons in the MMEs recorded the primary isotopes of their host MMEs is not well constrained. Here, two MMEs from the Daocheng (DC-2) and Dongcuo (HZS-3) granitic...