The 230Thex outlier at 277.5 cm is due to an anomalous 234U/238U of 0.58 (!);Probably diagenetic effect on U activities, as a bit below (297.5 cm) 234U/238U activity ratios...
This dataset is part of the Geological Survey NSW Geophysics dataset series.Ternary radioelement potassium(K)-thorium(Th)-uranium(U) channel data. The image was generated by merging many individual ai
Thanks to the courtesy of the British Museum of Natural History the author obtained from their Challenger collections two small nodules, and through a similar courtesy of the Mineralogical Department
