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Map showing publication footprint
  • Usage in publication:
    • Canovanas Formation*
  • Modifications:
    • Named
  • Dominant lithology:
    • Mudstone
    • Sandstone
  • AAPG geologic province:
    • Caribbean region
Publication:

Seiders, V.M., 1971, Cretaceous and lower Tertiary stratigraphy of the Gurabo and El Yunque quadrangles, Puerto Rico, IN Contributions to stratigraphy, 1969: U.S. Geological Survey Bulletin, 1294-F, p. F1-F58.


Summary:

The Canovanas Formation, here named, consists of mudstones and volcanic sandstones. Conformably overlies the Cambalache Formation; conformably underlies the Martin Gonzalez Lava. Maximum thickness is 450 m. Age is Late Cretaceous (Turonian to Santonian) based on Foraminifera.

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


Map showing publication footprint
  • Usage in publication:
    • Canovanas Formation*
  • Modifications:
    • Overview
  • AAPG geologic province:
    • Caribbean region
Publication:

Krushensky, R.K., 2001, Geologic map of Puerto Rico with correlation chart and map unit descriptions, IN Bawiec, W.J., and others, Geology, geochemistry, geophysics, mineral ccurrences, and mineral resource assessment for the Commonwealth of Puerto Rico: U.S. Geological Survey Open-File Report, OF-98-38, scale 1:100,000


Summary:

The Canovanas Formation occurs in eastern Puerto Rico and consists of basaltic, volcanic sandstone and mudstone. Maximum estimated thickness is 200 meters. The Canovanas is of Late Cretaceous age.

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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