Supporting information for "The largest positive carbonate carbon isotope (δ13Ccarb) excursion identified in the North China Craton: implications for the Lomagundi-Jatuli event"

This supporting information includes detail analytical methods for carbon-oxygen isotope analyses and major-element analyses (Text S1), representative outcrop and photomicrographs of the sampled stratigraphic units (Figures S1 to S6) and C-O isotopes and major-element compositions of the sampled stratigraphic units (Tables S1 to S2).本补充材料包含碳氧同位素分析与主量元素分析的详细实验方法（文本S1）、所采样地层单元的典型露头及显微照片（图S1至S6），以及对应采样地层单元的碳氧同位素与主量元素组成数据（表S1至S2）。