Fig. 4

a VLM image (BF, Mag. 20x) of a normal sample stratigraphy (DEP64_S3) containing: 1) varnish, 2) gold leaf, 3) red-brown bole and 4) white chalk grounding; b VLM image (BF, Mag. 20x) of a sample stratigraphy containing two different Fassungs
a VLM image (BF, Mag. 20x) of a normal sample stratigraphy (DEP64_S3) containing: 1) varnish, 2) gold leaf, 3) red-brown bole and 4) white chalk grounding; b VLM image (BF, Mag. 20x) of a sample stratigraphy containing two different Fassungs