Figure 2: U-Pb geochronology and ɛHf isotope compilation for the CAMP showing spatial and temporal variations.

(a) Vertical coloured bars represent ²³⁸U-²⁰⁶Pb Th-corrected ages for single zircon (filled bar) and baddeleyite (dashed bar) crystals. The length of the bar reflects the 2σ analytical uncertainties, and the grey horizontal bar reflects the weighted mean age calculated for the sample, with the thickness of the bar reflecting the 2σ uncertainty on the weighted mean age. The red line represents the ETE from ref. 1, and the ages from that study, and ref. 5 are also shown. Note that our NMB sample overlaps in age, within uncertainty with both the ref. 1 and ref. 5 ages, although these do not overlap with each other, the age of the NMB should be 201.498±0.028 Myr, which is an average of the ages from refs 1, 5 and reported here (Supplementary Fig. 2). All ages shown are without the tracer calibration and decay constant uncertainties, these need to be included when comparing the U-Pb ages to ages from other isotope systems. (b) Weighted mean age and average ɛHf data from the dated intrusive rocks. ɛHf data uncertainties are all±1.6ɛ units which represents the external reproducibility of the standard (see Methods section).