Usage:
Jobos Formation (PR*)
Geologic age:
early Tertiary (Oligocene and Eocene?)*
Type section, locality, area and/or origin of name:
Type section: exposure about 3 km north-northeast of Quebrada Jobos on the east side of the Rio Grande de Arecibo (Puerto Rico Meter Grid System 127,720 E.; 56,880 N.), Utuado quadrangle, central Puerto Rico (Nelson, 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 ([ ]).