Sand-sized heavy-mineral distributions in the Rio Cibuco system and adjacent rivers of north-central Puerto Rico
By: by Gretchen Luepke and Lawrence J. Poppe.
Contributors: Poppe, Lawrence J.; Geological Survey (U.S.)
Series: Open-file report -- 92-703.; U.S. Geological Survey open-file report -- 92-703.
Publisher: U.S. Dept. of the Interior, U.S. Geological Survey; Books and Open-File Reports Section, distributor]
Published: 1993
Place of publication: [Menlo Park, Calif.]; [Denver, Colo
Language: eng
Format: Microform
Number of pages: 28
Subjects: Heavy minerals -- Puerto Rico.; Mines and mineral resources -- Puerto Rico.
Other titles: Sand sized heavy mineral distributions in the Rio Cibuco system and adjacent rivers of north-central Puerto Rico.
Notes: Distributed to depository libraries in microfiche.

Shipping list no.: 93-1136-M.

Includes bibliographical references (p. 7).

Microfiche. [Denver, Colo. : U.S. Geological Survey, 1993] 1 microfiche : negative.