Bulletin of the Geological Society of Malaysia, Volume 20, August 1986, pp. 415 – 422

Age determination on the Kuantan granite and dolerite dykes

F.L.YAP

Geological Survey of Malaysia, Ipoh

Abstract: The results of Rb/Sr age determination work on 6 whole rock samples of the granite in the Kuantan area together with K-Ar data on biotite separates are reported. The whole rock data plotted on an isochron 292 ± 12 m.y. with an initial ⁸⁷Sr/⁸⁶Sr ratio of 0.704. K-Ar data from the biotites gave discordant ages.

K-Ar dating of whole rock samples from 6 dolerite dykes intrusive into the granite gave ages of about 100 m.y. except one sample which gave an age of 131 m.y.

https://doi.org/10.7186/bgsm20198620