Generation of Early Indosinian enriched mantle-derived granitoid pluton in the Sanjiang Orogen (SW China) in response to closure of the Paleo-Tethys

A diverse suite of intermediate to felsic rocks from the Baimaxueshan pluton within the Sanjiang Orogen, SW China, documents the tectonomagmatic history of closure of the eastern Paleo-Tethys and associated arc accretion onto the margin of Asia. The pluton consists mainly of diorite, tonalite and granodiorite, and contains mafic magmatic enclaves (MMEs). SHRIMP U–Pb analyses on zircons from the MMEs and host granitoids yield crystallization ages...