Bulletin of the Geological Society of Malaysia, Volume 45, May 2002, pp. 243 – 246

Geochemical characteristics of the granitic rocks from Boundary Range Batholith, Peninsular Malaysia

A. Rashid Ahmad, Ismail Yusoff & Azman A. Ghani

University of Malaya, 50603 Kuala Lumpur

Abstract: Geochemical characteristics of Boundary Range granite are similar to those of the Eastern Belt Granite and not to those of the Western Belt Granite. Although, the majority of the rocks from the Boundary Range granite have SiO₂ contents (> 65% SiO₂) similar to those of Western Belt granite, other elements such as P₂O₅, Na₂O, Ba and Sr are very different. The Boundary Range granite can be classified as T type granite as the granite has high Na₂O content, abundance of mafic microgranular enclave, contain sphene and hornblende and increasing ACNK values with SiO_2. Simple modeling of the granite using log-log Ba vs Sr plot suggest that plagioclase, K-feldspar and biotite are important crystallisation phases in the magmatic evolution.

https://doi.org/10.7186/bgsm45200236