Fig. 10From: Late Quaternary eruption of the Ranau Caldera and new geological slip rates of the Sumatran Fault Zone in Southern Sumatra, IndonesiaMajor element compositions supporting correlation of the Ranau Tuff outcrops over a distance of 100 km. a All Ranau Tuff samples are dominated by andesine feldspar. b Biotite compositions are similar for all analyzed Ranau Tuff samples, but differ significantly from tephras erupted from Toba (Westgate et al. 1997) and Maninjau calderas. c, d Glass compositions of all Ranau Tuff samples are similar. Of the Sumatran tuffs with available compositional data, the Ranau glass composition is most similar to that of the V-6 tephra of Salisbury et al. (2012) from offshore of South Sumatra. e Ilmenite compositions of all Ranau Tuff samples are similar; however, RAN-23B exhibits a wider range of compositions that suggests contamination of the very distal tephra by separate igneous sources, probably due to reworking of older material during emplacementBack to article page