CL26 (entity_id = 212): Decay constants are:  238U = 1.55125E-10, 234U=2.835E-6, 230Th=9.915E-6, 232Th = 4.948E-11 . (230Th/232Th) ratios all greater than 50, so no detrital correction applied. Relict aragonite is preserved in very short intervals, several of which can be seen in the occasional spikes in d13C (3 arrows in upper part of figure 4c in McDermott et al., 1999).