Figure 3From: Investigations by Raman microscopy, ESEM and FTIR-ATR of wall paintings from Qasr el-Ghuieta temple, Kharga Oasis, Egypt ESEM image (in the backscattered electron mode) obtained on a polished cross-section of the blue paint layer (350×, scale bar = 200 μm) and an element distribution map shows silicon, calcium, copper and sulphur are present. Back to article page