论文信息 - Age determinations of the Zoetlief Group; a Ventersdorp Supergroup correlative

Age determinations of the Zoetlief Group; a Ventersdorp Supergroup correlative

Rb-Sr, Pb-Pb, and single zircon dating of the Kareefontein Quartz Porphyry, northeastern Cape Province, South Africa, confirm the correlation proposed by SACS (1980) between the Zoetlief Group and the Ventersdorp Supergroup. Rb-Sr and Pb-Pb whole-rock ages of ca. 2350 to 1900 Ma for the Kareenfontein permit no definitive interpretation but are nevertheless similar to the age patterns for the Ventersdorp and support the correlation. The clearest evidence is the almost perfect match between the Kareefontein single zircon Pb evaporation date of 2714±3 Ma and zircon SHRIMP dates for the Makwassie Quartz Porphyry and Klipriviersberg Formation of the Ventersdorp (Armstrong et al., in press)

F. Walraven | F. Kruger | C. Smith | C. Smith

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