Teo contrasting accretion v. collision orogenies: insights from Early Paleozoic polyphase metamorphism in the Altun–Qilian–North Qaidam orogenic system, NW China

Cathodoluminiscence imagery of zircons revealing <sup>206</sup>Pb/<sup>238</sup>U ages and Th/U ratios (Table S1) and analysis of biotite from mylonitized paragneiss yielding Ar–Ar plateau and isochron ages (Table S2)