Albian sites of the Sisteron area. A–D: Salignac. A: succession of Albian sediments and zone of presence of amber in situ; B: situation of a sampled amber nodule (arrow) within a marl-limestone succession; C: amber nodule (arrow) in a marly sediment; D: detail of the amber nodule showing its characteristic dominant red appearance. E: Outcrops containing grains of amber (arrow) in the Albian deposits cropping out at Aubignosc.