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Map showing publication footprint
  • Usage in publication:
    • Virgin Island Group
  • Modifications:
    • Overview
  • Dominant lithology:
    • Volcanics
    • Andesite
    • Breccia
    • Tuff
    • Limestone
    • Conglomerate
  • AAPG geologic province:
    • Caribbean region
Publication:

Donnelly, T.W., 1966, Geology of St. Thomas and St. Croix, U.S. Virgin Islands, IN Hess, H.H., ed., Caribbean geological investigations: Geological Society of America Memoir, 98, p. 85-176.


Summary:

Virgin Island Group consists of (ascending) Louisenhoj Formation (breccia, tuff, conglomerate), Outer Brass Limestone, Tutu Formation (tuffaceous wacke, megabreccia, and limestone), and Hans Lollik Formation (andesite breccia). Total thickness probably exceeds 36,000 ft. Age is Late Cretaceous.

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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