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Abstract: First U-Pb zircon isotopic dates were obtained for rocks from the Devonian volcanic belt in Kazakhstan. The granodiorites of the Zhabden Massif (Karamendinskii Complex) were dated at 391 � 1 Ma. The Sm-Nd isotopic system of a whole-rock granodiorite sample (ɛNd = 2.5) suggests a high percentage of mantle material in the initial granite melt, which is in good agreement with known data on granitoids in neighboring territories in Kazakhstan. With regard for the isotopic dates obtained for the granodiorites, the material of their source was separated from the mantle at 946 Ma.

1.The design and the technique of making dies and punches the working part of which consists of hard alloys has been developed.2.Under industrial conditions, together with an improvement in the quality of the tablets with respect to their external form, an economic effect has been achieved through the introduction of a press tool resistant to wear.