Feasibility of chemical U–Th–total Pb baddeleyite dating by electron microprobe

In situ simultaneous determination of trace elements, U-Pb and Lu-Hf isotopes in zircon and baddeleyite

“…It has been intensively investigated for its U-Pb age and chemical composition [23 31] . It is found by TIMS analyses that this kind of mineral is slightly reverse discordant, but its 207 Pb/ 206 Pb ages are constant, with a weighted mean age of 2059.8±0.8 Ma [24] (with upper intercept at 2059.5±0.3 Ma), or 2059.7±2.1 Ma [25] (upper intercept at 2060.6±0.5 Ma) and 2059.6±0.4 Ma [31] . Therefore, it is thought that 2060 Ma may represent the age of crystallization of this mineral.…”

Paleoproterozoic intraplate magmatism and basin development on the Kaapvaal Craton: Age, paleomagnetism and geochemistry of 1.93 to 1.87 Ga post-Waterberg dolerites

“…In Figure 12, we show the poles derived from specific sampling areas within the complex (Hattingh, 1986a;b;c;Hattingh and Pauls, 1994). Further support for this suggestion comes from the fact that the Phalaborwa Complex (Figure 1), which has yielded U-Pb baddeleyite ages of 2059.6 ± 0.4 to 2060.6 ± 0.5 Ma (Reischmann, 1995;French et al, 2002) and therefore is coeval with the Bushveld Complex, has a pole (PA1) that lies well to the northeast of the mean Bushveld pole (Figure 12). The error circle of our WSD pole overlaps the error circle of the mean Bushveld pole.…”

Paleomagnetism of the 1.1 Ga Umkondo large igneous province in southern Africa

“…the error circle of the mean pole derived from sites in the Phalaborwa Complex [Morgan and Briden, 1981] which has U-Pb baddeleyite ages of 2059.6 ± 0.4 to 2060.6 ± 0.5 Ma [Reischmann, 1995;French et al, 2002], closely similar to the age of the Bushveld Complex (2.06 Ga [Eglington and Armstrong, 2004]). Our results are in full agreement with the arguments of Martini [1998] that the Loskop Formation was deposited during emplacement of parts of the Bushveld Complex.…”