Supplemental Material: An eastern extension of the layered-only zone of Australasian tektites

Text S1: Analytical methods; Text S2: Overview of earlier proposed source crater locations; Tables S1–S2: sampling locations; Tables S3–S4: geochemical data; Figure S1: distribution of tektite-bearing strata in China; Figures S2–S3: morphological characteristics of Australasian tektites in China; Figure S4: earlier proposed source crater locations; Figure S5: current water depths in the South China Sea.