Shallow-water deoxygenation during the late Cambrian SPICE event on the North China Platform: Insights from sulfur and iodine records - Yinggang Zhang; Aihua Yang; Tianchen He; Shengxian Du; Jun Chen; Bo Chen; Chunlin Hu; Zhixin Sun; Xi Chen; Maoyan Zhu (Palaeogeography, Palaeoclimatology, Palaeoecology, 2026)