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Geologic Unit: Miranda
Map showing publication footprint
  • Usage in publication:
    • Miranda sand member*
  • Modifications:
    • Named
  • Dominant lithology:
    • Sand
    • Silt
    • Clay
  • AAPG geologic province:
    • Caribbean region
Publication:

Monroe, W.H., 1962, Geology of the Manati quadrangle, Puerto Rico: U.S. Geological Survey Miscellaneous Investigations Series Map, I-334, 1 sheet, scale 1:20,000


Summary:

The Miranda sand member of the Cibao formation, here named, consists of about 10 m of coarse-grained quartz sand in a noncalcareous silty, mottled grayish-red and yellowish-gray clayey matrix. Overlies hard limestone of the Quebrada Arenas limestone member of the Cibao.

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


Map showing publication footprint
  • Usage in publication:
    • Miranda Sand Member*
  • Modifications:
    • Age modified
  • AAPG geologic province:
    • Caribbean region
Publication:

Monroe, W.H., 1963, Geology of the Camuy quadrangle, Puerto Rico: U.S. Geological Survey Geologic Quadrangle Map, GQ-197, 1 sheet, scale 1:20,000


Summary:

Age of the Cibao Formation is late Oligocene and early Miocene.

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


Map showing publication footprint
  • Usage in publication:
    • Miranda Sand Member*
  • 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 Miranda Sand Member of the Cibao Formation occurs on the north coast of Puerto Rico and consists of channel sand with pebbles and cobbles locally.

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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