Extended Data Fig. 6: Deep Shelf Unit I cross-section.
From: Estimating temperatures of heated Lower Palaeolithic flint artefacts

Photographic images from a freshly exposed Qesem Cave ‘Deep Shelf’ cross-section. The blue tags (Sed 1–20) show the locations from which 20 samples of sediment were taken. The deeper sediments (including ‘Deep Shelf Unit I’) comprise in situ almost horizontal deposits.