Tectonic evolution of the Proto-Tethys in the early Devonian: insights from the turbidite in the North Qilian belt, NW China

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S1 analytical method Whole‒rock major and trace element and U‒Pb dating analytical methods. S2 Table 1 U‒Pb ages of zircons from the Jiayuguan mélange turbiditic sedimentary rocks in the Hexi Corridor, North Qilian belt. Highly discordant analyses (< 90% or > 110%) are considered unusable and are displayed in strikethrough text; they are not included in the concordia diagrams. Concordant % = 100*(207Pb/206Pb) age/(206Pb/238U) age for age >1500 Ma, or 100*(207Pb/235U) age/(206Pb/238U) age for age <1500 Ma. S3 Figure 1 Concordia U‒Pb diagram and CL images of zircons from the Jiayuguan mélange sedimentary rocks in the Hexi Corridor, North Qilian belt

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