The Río Abajo, Pitahaya, and Daguao Formations in eastern Puerto Rico
Subtitle: a description of three largely volcaniclastic units, which are assigned an early Cretaceous age
By: by John W. M'Gonigle.
Series: Contributions to stratigraphy; Geological Survey bulletin ; 1435-B; Geological Survey bulletin ;; 1435-B.
Publisher: U.S. Govt. Print. Off.
Published: 1977
Place of publication: Washington
Language: eng
Number of pages: 10
Subjects: Geology, Stratigraphic -- Cretaceous.; Volcanism -- Puerto Rico.; Geology -- Puerto Rico.; Formations (Geology) -- Puerto Rico.
Notes: Bibliography: p. 9-11.