Fontaine, Henri <br/><br/>
The limestone of Sungai Rui and Sungai Kuak Valleys, (Upper Perak) : RAK (D3) 
Henri Fontaine, Ibrahim Amnan. 
 -  1994 
 - 7p.  ill.  30cm 
<br/><br/>Includes bibliographical references 
<br/><br/> Limestone is widely exposed in a zone aligned in a nearly north-south direction, strecthing over a distance of more than twelve kilometers and belonging to the drainage basins of Sungai Rui and Sungai Kuak (Northern part of the state of Perak, near the Thailand border). The limestone is interbedded with siltstone and black shale. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Limestone--Perak
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Perak