Figure S1: Representative photomicrographs (cross-polarized light) of Cambrian and Ordovician samples selected for detrital zircon U-Pb geochronology. Figure S2: Representative cathodoluminescence images of zircons analyzed from Cambrian and Ordovician samples. Table S1: Laser ablation–inductively coupled plasma–mass spectrometry data of detrital zircons from the Cambrian and Ordovician sandstones from eastern Qilian Orogen and western North China Block.
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Sun et al. (2024) studied this question.
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