Extended Data Fig. 8: Stepwise Thermal demagnetization (TD) diagrams and vector end-point diagrams.

Data is provided for five representative samples from the Calio excavation site and the road section further east. TD-analyzed subsamples (denoted “Specimens”) were taken from palaeomagnetic block samples Sp3, Sp6, Sp7, Sp10, and Sp13 (e.g., Specimen 3-4 denotes subsample 4 from block sample Sp3). Open circles on the orthogonal projection indicate the vertical component of magnetization and the solid circles the horizontal component. Open circles on the equal area projection diagram indicate an upper hemisphere magnetic direction. Solid circles indicate a lower hemisphere magnetic direction.