Slab flattening in the mantle transition zone drives extrusion and upwelling of ancient subducted material

Ar-Ar dating, mineral and whole-rock chemical compositions of Changbaishan basalts from NE China.
Table S1 contains the whole-rock 40Ar/39Ar dating results. Table S2 includes whole-rock major- and trace-element data. The chemical data for olivine and its spinel inclusions are presented in Table S3. Table S4 contains the whole-rock Sr–Nd–Pb–Hf isotope data. The cited whole-rock data from the Changbaishan volcanic field are in Table S5. Table S6 includes the endmember compositions used in the isotopic modeling, and Table S7 contains the cited data for regional mantle xenoliths.