THE PHILIPPINE 



Journal of Science 



A. Chemical and Geological Sciences 

 and the Industries 



Vol. VIII 



OCTOBER, 1913 



No. 5 



THE GEOLOGY AND PETROLEUM RESOURCES OF THE SOUTH- 

 ERN PART OF BONDOC PENINSULA, TAYABAS 

 PROVINCE, P. I. 



By Wallace E. Pratt and Warren D. Smith 



(From the Division of Mines, Bureau of Science, Manila, P. I.) 



Ten plates, 1 text figure, and 1 map 



CONTENTS 



Introduction. 

 General. 

 Previous knowledge of the region 



and sources of information. 

 Scope of the present work. 

 Methods of field work. 

 Geography. 

 Situation. 

 Transportation. 

 Climate and vegetation. 

 Population. 

 Geology. 



General statement. 



Physiography. 



Orography. 



Hydrography. 



Topographic control. 



Stratigraphy. 



Table of stratigraphy. 



General geologic sections. 



Alluvium and travertine. 



Littoral deposits and recent 

 coral reefs. 



Malumbang series. 



Canguinsa sandstone. 



Geology — Continued. 



Stratigraphy — Continued. 

 Vigo shale. 

 Volcanic agglomerate. 

 Structure. 

 General. 

 Unconformities. 

 Central anticline. 

 Region north of Central an- 

 ticline. 

 Malipa anticline. 

 Bato anticline. 

 Ayoni anticline. 

 Cudiapi syncline. 

 Maglihi anticline. 

 Banaba monocline. 

 Geologic history. 

 Occurrence of the Petroleum.' 

 Physical and Chemical Properties 



of the Petroleum. 

 Origin and Probable Quantity of 



the Petroleum. 

 Areas to be Prospected. 

 Conclusions. 



INTRODUCTION 

 GENERAL 



The existence of petroleum seeps on the lower end of Bondoc 

 Peninsula, especially on Bahay River, was known among the 

 natives at least, during the Spanish regime, but no steps were 



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