Fig. 6From: Integrated analytical approach to unveil the secrets of the recently discovered “Sphinx Room”: a new piece of Domus Aurea puzzleBivariate diagrams of Pb vs. Fe (a) and K vs. Fe (b) for all the analyzed spots. The color of the symbol corresponds to the analyzed shade. Squares indicate points on the vault and eastern wall, circles points on the North wall, triangles on the southern one. Diamonds are used when no distinction is made between the vault and North walls' pointsBack to article page