The Rio Abajo, Pitahaya, and Daguao Formations in eastern Puerto Rico /

Description of three largely volcaniclastic units, which are assigned early Cretaceous age.

Bibliographic Details

Main Author:	M'Gonigle, John W.
Corporate Author:	Geological Survey (U.S.)
Format:	Government Document Book
Language:	English
Series:	Geological Survey bulletin ; 1435-B. Contributions to stratigraphy.
Subjects:	Geology, Stratigraphic > Cretaceous. Volcanism > Puerto Rico. Geology > Puerto Rico.