Table 1. Mineralogy of selected samples from Tanqua Karoo fans. Fourier Transform Infrared Spectrometrys analyses (FTIR) on outcrop samples are semiquantitative. Samples from Marot (and Rozman) are qualitative data from visual estimates of thin sections. The very fine grain size of constituents from Rozman made visual identification extremely difficult. Specific collecting localities for Marot’s work are unreported.