Fig. 11

Relationship between measured K–Ar age from the different size fractions for the northerly Stephansbrücke (SB) samples (Table 2) and the modal % of smectite and chlorite (Table 1), determined by quantitative X-ray diffraction. a K–Ar age versus % smectite; note the one clear outlier for SB4 <0.1 μm; b K–Ar age versus % chlorite; c δD versus % smectite. Data table for the plot is available in Online Resource 6