296 



The Philippine Journal of Science 



1915 



which revealed 2.75 meters of coal. The work at this point en- 

 countered a fault after an advance of 13 meters in the coal. 

 All work was suspended before the ground beyond the fault could 

 be explored, and the true relation of these outcrops to the out- 

 crops farther south remains undetermined. 



The Uling coal appears from the foregoing to have undergone 

 faulting which, however, is not serious enough to prevent mining. 

 Evidence of inconstant conditions of deposition is brought out 



0.03- 



ia/f"- o.2/:p 



\0.23"'- 

 \0.35">- 



\0.80"'- 



\o.50"'- 



Scale 



O.IO'"- 

 0.58'^- 



Meters 



LEGEND 

 Coal 



Carbonaceous shale. 



Sandy shale 



Fig. 3. Sections across 5-meter coal bed at Uling, Cebu. 1, cut section of outcrop of 

 faulted coal; 2, section 10 meters beyond fault; 3, section 58 meters beyond fault; 4, 

 section 84 meters beyond fault. 



by the exploration, and the persistence of the coal beds over 

 large areas is questionable. Yet it is not established that the 

 bed has actually pinched out anywhere, and it is entirely possible 

 that further exploration will prove tonnages adequate for com- 

 mercial exploitation. 



The Uling coal is slightly inferior to the Danao and Com- 

 postela coal, but is a valuable fuel, especially if it could be used 

 for purposes such as cement burning, where it would be dried 

 and pulverized before combustion. 



The most thorough exploration of Philippine coal fields by 



