Thus the entire volume of the Emeishan basalts is estimated to be 300,000 km³. Evidence suggests that the initial volcanism of the central Emeishan Traps occurred in a deep submarine environment without any significant prevolcanic uplift.

Concentrations of atmospheric Carbon dioxide (pCO2) during the early and main eruptions phases declined going from around 700 ppm to around 350 ppm before then increasing in