Mid-Neoproterozoic arc magmatism in the northeastern margin of the Indochina block, SW China: Geochronological and petrogenetic constraints and implications for Gondwana assembly

- Zircon U-Pb data from granitoids of Indochina Block which show ages ranging from 754 to 767 Ma.
- The Hf isotopic data and geochemical signatures suggest calc-alkaline magmas generated in a subduction-related setting.
- We propose the juxtaposition of India and Indochina in the Gondwana reconstruction.