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Geologic Unit: Tibes
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  • Usage in publication:
    • Tibes diorite
  • Modifications:
    • Named
  • Dominant lithology:
    • Diorite
  • AAPG geologic province:
    • Caribbean region
Publication:

Pessagno, E.A., Jr., 1960, Geology of the Ponce-Coamo area, Puerto Rico: Puerto Rico Economic Development Administration, p. 94-103., Prepared in cooperation with Princeton Univ. Dept. Geol


Summary:

Named Tibes diorite for diorite that intrudes lower Maastrichtian rocks of the Rio Blanco formation. It does not intrude Eocene Jacaguas group. Therefore time of intrusion is post early Maastrichtian and probably pre-middle Eocene.

Source: GNU records (USGS DDS-6; Reston GNULEX).


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 ([ ]).

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