Fig. 4.

CI chondrite normalized patterns of siderophile element data for the 67095 metal grains obtained by in situ laser ablation ICP-MS analysis. The elements are arranged in order such that the 50% condensation temperatures decrease from left to right. The bulk silicate rock composition, multiplied by 400, of 67095 was determined by isotope dilution (data in Table 2) is plotted for comparison. CI values are from Horan et al. (2003) and Fischer-Gödde et al. (2010). Calculations show that the bulk HSE composition of grain M1 can be accounted for assuming a rim thickness of approximately one tenth of the grain radius with a mass proportion of roughly 3:7; using this mass proportion, the rest of siderophile elements are calculated and shown in the Electronic Annex.