A Sketch of the Geological Structure of the 

 Malay Peninsula. 



BY J. B. SCRIVENOR M.A., F.G.S., 

 Geologist to F. M. S. Government. 



It is now some considerable time ago that I was first 

 invited to contribute a paper to the Journal of the Straits 

 Branch of the Eoyal Asiatic Society on the geology of the 

 Malay Peninsula, but it was only when this invitation was 

 repeated recently that I felt justified in attempting any such 

 sketch, and that because after some years work I feel that the 

 main points in the geology of the Peninsula are becoming 

 clear and that it is possible to trace some of the steps in the 

 history of this part of Asia before ever it existed as a 

 Peninsula. 



It is my purpose then in this paper to show how far the 

 information gained during the economic work of the last seven 

 years assists the science of geology in its great object, which 

 is the unravelling of the history of the globe, with the help of 

 the evidence afforded by the physical features of the earth's 

 surface as it exists at the present day. 



The chief physical features of the Peninsula with which 

 we shall be concerned are the mountain ranges, and a strip of 

 flat land with isolated hills that occurs on either coast, but is 

 particularly well marked on the west from Kuala Langat 

 northwards. To take the mountain ranges first, there are 

 three distinct types, whose position and nature must be ex- 

 amined in some detail. 



Beginning in the north, a remarkable but little known 

 feature is found in Kedah. As one approaches the mouth of 

 the Kedah Eiver from Penang, there is seen on the left of the 

 entrance a big mass of limestone rising out of the flat ground 

 and to the right of it a more distant range of hills. Through 

 Jour. S. B. R. A. Soc, No. 59, IQH. 



