Same as Fig. B.1, but for [168]Yb/[180]Ta versus the [174]Hf/[180]W ratio. As in Fig. B.8, the empty circle represents the solar ratio, while the filled symbol represents the solar ratio minus the s-process contribution to the isotope [180]Ta (1-s). The grey-shaded areas identify a factor of 2 and 3 from the ratio calculated using the (1-s) value. [168]Yb, [174]Hf, and [180]W have a radiogenic contribution from [168]Hf, [174]W, and [180]Os, respectively. In the RAU models, the same three isotopes have a further radiogenic contribution from [168]Lu, [174]Ta, and [180]Re, respectively.