Figure 6
Pullaiah and modified nomograms for the tsunami boulder (TB2). The white circles represent the unblocking temperatures of the samples. The black curves were calculated with the Pullaiah nomogram and red curves represent the modified nomogram. Gray areas indicate the unblocking ranges of the Pullaiah nomogram and the area with hatched lines represents areas overlapping with the gray areas. The blue areas are the unblocking ranges of the modified nomogram and the area with cross-hatched lines represents areas overlapping with the blue areas.
