Usage:
Lago Garzas Formation (PR*)
Subunits:
Pastillo Member (PR*)
Geologic age:
Late Cretaceous to early Tertiary (Campanian to Eocene?)*
Type section, locality, area and/or origin of name:
Type locality: on east side of Cerro El Gigante, at km post 5.0 on Route 518 (Puerto Rico Meter Grid System 122,300 E.; 33,980 N.), Adjuntas quadrangle, west-central Puerto Rico. Named from exposures in vicinity of Lago Garzas and eastward from the lake along Route 518 (Mattson, 1967).
AAPG geologic province:
Caribbean region*
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
Asterisk (*) indicates published by U.S. Geological Survey authors.
"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).
Slash (/) indicates name conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).