Absolute or relative isotopic abundance radios have been determined for U, Pb, Rb, Sr, Ca, and Cu on a representative fraction of the bulk fines 14163,159 and for a breccias 14321,221. No significant variations from terrestrial values were noted for the nonradiogenic isotopes. Concentrations were determined for the above elements as well as for Th, B, Ag, Cd, Fe, Ti, and Ni. 207Pb/206Pb ages of about 4860 m.y. (million years) and 4420 m.y. were calculated for 14163 and 14321, respectively. The Pb-U and Pb-Th ages are very slightly discordant, the soils exhibit a reversed discordancy and the breccias a normal discordancy. Extreme inhomogeneity of Rb and Sr in the fines sample was found.