Fig. 6From: Jackson Pollock’s Number 1A, 1948: a non-invasive study using macro-x-ray fluorescence mapping (MA-XRF) and multivariate curve resolution-alternating least squares (MCR-ALS) analysisOverlapped distribution maps of the white, glossy and matte black paints for a section in area (1) showing that the gray paint was made by mixing the white paint and the black glossy paint and not the matte black Back to article page