152 



The Philippine Journal of Science 



1914 



the site, and offshore is a small protected harbor, designated 

 as Tinaan Anchorage on the maps of the Coast and Geodetic 

 Survey (fig. 1). At the head of Pandan River, 12 kilometers 

 from the coast, is the Uling coal field which could probably 

 be utilized to supply fuel for a cement plant. The coal is of 

 suitable quality, and there is no special difficulty in the way of 

 locating a railway along the valley of Pandan River. A wide 

 alluvial plain has developed at the mouth of Pandan River and 

 along its lower course except where the valley cuts through 

 Magdagoog Range, a ridge trending parallel to the coast at a 

 distance of about 2 kilometers inland. Mount Magdagoog from 



Fig. 1. Outline map of the vicinity of Naga, Cebu. ( 1 ) Location of limestones 35, 37, and 39 : 

 (2) limestone 46 and tuff 47; (3) clastic rocks 48 and 49; (4) limestone 50; (5) shale 51; 

 (6) upper limestone in coal measures. 



which this ridge takes its name lies about 3 kilometers north 

 of the plant site, and attains an elevation of nearly 400 meters. 



GEOLOGY, CHARACTER, AND FIELD RELATIONS OF THE 

 RAW MATERIALS 



General. — The formations represented in section in fig. 2 

 comprise the usual Philippine sedimentary column. The 

 paleontologic studies of Abella,* Martin,'^ and (in more detail) 

 of Smith " make it reasonably certain that the greater part of the 

 section consists of rocks of Miocene and Post-Miocene age. On 



^La Isla de Cebu. Madrid (1886). 



• Ueber tertiare Fossillen von den Philippinen. Translation by George 

 F. Becker. 21st Annual Rep. U. S. Geol. Surv. (1895), 129-140 of reprint. 

 " This Journal, Sec. A (1913), 8, 235 et seq. 



