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Map showing publication footprint
  • Usage in publication:
    • Rio Maton limestone member*
  • Modifications:
    • Named
  • Dominant lithology:
    • Limestone
Publication:

Berryhill, H.L., Jr., and Glover, Lynn, III, 1960, Geology of the Cayey quadrangle, Puerto Rico: U.S. Geological Survey Miscellaneous Investigations Series Map, I-319, 1 sheet, scale 1:20,000


Summary:

The Rio Maton Limestone Member of the Robles Formation, here named, consists of a lenticular unit of bioclastic limestone at the base of the Robles. Maximum thickness is 50 m. Age is Late Cretaceous or older.

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


Map showing publication footprint
  • Usage in publication:
    • Rio Maton Limestone Member*
  • Modifications:
    • Age modified
Publication:

Briggs, R.P., 1969, Changes in stratigraphic nomenclature in the Cretaceous System, east-central Puerto Rico, IN Contributions to stratigraphy, 1968: U.S. Geological Survey Bulletin, 1274-O, p. O1-O31., Prepared in cooperation with the Commonwealth of Puerto Rico Economic Development Administration


Summary:

Age of the Rio Maton Limestone Member of the Robles is changed to Early Cretaceous (Albian).

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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