Bulletin of the Geological Society of Malaysia, Volume 14, Dec. 1981, pp. 135 – 141
Jabatan Geologi, Universiti Malaya, Kuala Lumpur.
Abstract: Tourmalinized granites in Langkawi containing muscovite are interpreted by Hutchison and Leow (1963) to have suffered tourmalinization and greisenization. The petrography of the tourmalinized granites appears to be better explained using the available composition model of Atherton and Brotherton (1972). The development of muscovite and other features are the consequences of boron metasomatism (tourmalinization) and other processes need not be invoked.
This note is prompted by a paper by Hutchison and Leow (1963) on tourmaline greisenization in Langkawi, northwest Peninsular Malaysia. The good descriptions given in the paper permit the interpretation given below.