The first reported 2.28–2.19 magmatic event in southwestern Yangtze Block.
Two periods of metamorphism, 1.97–1.95 Ga and ∼1.83 Ga, occurred on the 2.28–2.19 rocks.
The Yangtze Block was an exotic terrene accreted to Laurentia at ∼2.4–2.3 Ga.
The Yangtze Block was linked to northwestern Laurentia, and possibly Siberia, in the Nuna supercontinent.