Fig 11. Stratigraphic integrity of Sidon data (Table 1), evaluated by SPD-sequencing.

(Upper Graph): The SPDs of each Sidon Phase (A,B,C,D,E,I) are arranged according to their known stratigraphic sequence, from oldest to youngest. The lowest SPD is for Phase A (N = 2 dates), the uppermost SPD is for Phase I (N = 4 dates). The known SPD-order is used to derive a specific SPD-amplitude that is valid for the SPDs of all phases, and which can be used to automatically sort the SPDs. All SPDs are assigned a common max amplitude (p = 100%). Then there also exists a common amplitude of p = 50%, that can be measured on the leading SPD-signal edge, that we can use for automated sorting (not shown). The SPD-specific numeric sort ages are shown on the right. (Lower Graph): In order to achieve a correctly sorted SPD-sequence, alternatively, the same sorting procedure can be applied to the outlier-filtered SPDs. For screening purposes prior to the application of more advanced (but time-consuming) GaussWM modelling procedures, it is (optionally) possible to replace the leading-edge seriation by an algorithm based on trailing-edge or interquartile seriation.