Figure S1. Carboniferous sedimentary provenance and tectonic setting in the Darbut region of Western Junggar (NW China): evidence from mineralogy, geochemistry and detrital zircon U–Pb dating

Fig. S1 Photomicrographs with cross-polarized light of grain types in the Carboniferous clastic rocks from the Darbut region. Samples (xb-) are from the Xibeikulasi Formation. Samples (bg-) are from the Baogutu Formation. Q-quartz; P-feldspar; lithic fragments: Ls-silicolite, Amp-amphibolite, Aug-augite, Lm-mica, Lt-tuff, Lst-sandstone, Lb-basalt, La-andesite, Lg-granite, and Lc-carbonate.