STRUCTURAL GEOLOGY OF BRITISH MALAYA 



559 



Fig. 2. — Sketch-map showing the coulisses of British Malaya. The crosses 

 indicate granite, i. The Nakawn Coulisse. 2. The Kedah-Singgora Couhsse. 

 3. Gunong Perak. 4. Kedah Peak. 5. Penang. 6. Province Wellesley hills. 7. 

 The Bintang Coulisse. 8. The Kledang Coulisse. 9. The Kerbau Coulisse. 10. 

 The Benom Coulisse. 11. Mount Ophir. 12 and 13. The Tahan Coulisse, con- 

 tinued in Singapore. 14, 15, 16. The East Coast Coulisse. 



The line from 3 to 10 joins the highest points of the granite ridges in each coulisse 

 that it touches. Along this line from 3 to 9 there is a continuous granite outcrop, 

 which is the roof of the bathylith that forms the foundation of the granite ribs, or 

 coulisses of the Peninsula. In other parts of the Peninsula the country between the 

 couUsses is composed of bedded rocks, shale and quartzite, or calcareous rocks, except 

 for occasional small outcrops of granite, dolerite, rhyolite, and the Pahang Volcanic 

 Series. 



