266 FANNING. 
equal age make the correlation quite certain. Referring to the 
Palauig beds, Adams" states: ““‘This formation may correspond 
to the marine conglomerates which are found on the flanks of 
the southern portion of the cordillera.”’ This correlation is not 
borne out by the writer’s observations, for in studying the 
“marine conglomerate” at Patungon Bay and on Carabao Island, 
the discovery of hornblende crystals in the matrix indicated that 
the formation is distinctly of volcanic origin, thus confirming 
the belief of Becker and others. However, it is to be noted that 
the volcano was adjacent to the sea and the agglomerated lava 
was partly worked over to the formation of a conglomerate. 
The widespread tuffaceous activity contemporaneously taking 
place caused the intercallations of fine, water-laid tuff beds with 
the coarse agglomerate and conglomerate. The latter appears to 
be very local, of uncertain age, and to bear no similarity either in 
origin or lithology to the marls of Dasol, and so leaves no basis 
for correlation. 
Martin '* makes the suggestion that the Tertiary marls lying 
between Aringay and the China Sea can be correlated with the 
marls found by von Drasche on the west base of the Zambales. 
This correlation is made all the more exact by the now known 
occurrence of Tertiary marls in the intermediate Pangasinan 
area. 
Tuffaceous limestones.—Limestones, probably tuffaceous, are 
found interbedded with the marls southeast of Alaminos and west 
of Bani. The rock is exceptionally white, and like the marls is 
very soft and fine-grained. Coral and shell fragments are 
frequent, and the strata evidently have been derived from the 
decomposition of the ancient coral. The limestone varies in 
composition, and in places is so earthy and impure as to be classed 
as marl. The texture is generally microscopically fine, though 
sometimes it is very coarse-grained, and 5 kilometers east of 
Dasol a bed was seen which was composed almost entirely of 
shell and coral fragments. This was found at the contact with 
the ancient shore line which accounts for the great abundance of 
shells. Coarse-grained limestones were never found distant from 
the old shore line. 
Adams questioned the occurrence of limestones in the West- 
ern Cordillera, but he did not visit the northern part of the 
“This Journal, Sec. A (1910), 5, 71. 
* Becker’s translation, 130. — 
* Loc. cit., 70. 
