Extended Data Fig. 4: Transect views of three dated rock art samples from Leang Bulu’ Sipong 4.
![Extended Data Fig. 4](https://cdn.statically.io/img/media.springernature.com/full/springer-static/esm/art%3A10.1038%2Fs41586-024-07541-7/MediaObjects/41586_2024_7541_Fig7_ESM.jpg)
a, BSP4.2, c, BSP4.3, and e, BSP4.4. The pigment layer and the three integration zones (regions of integration, ROIs) are indicated, along with the associated age calculation for each sample. LA-MC-ICPMS imaging of b, BSP4.2, d, BSP4.3, and f, BSP4.4 232Th/238U isotopic activity ratio. A zone of diagenesis is shown in b (ROI-d).