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National Geologic Map Database
Map showing publication footprint
  • Usage in publication:
    • Diamond City Clay
  • Modifications:
    • Named
  • Dominant lithology:
    • Clay
  • AAPG geologic province:
    • Atlantic Coast basin
Publication:

Susman, K.R., and Heron, S.D., Jr., 1979, Evolution of a barrier island, Shackleford Banks, Carteret County, North Carolina: Geological Society of America Bulletin, v. 90, no. 2, pt. 1, p. 207-209.


Summary:

Diamond City Clay, here named in Carteret Co., NC, described as gray soft silty illite-rich clay interbedded with shell hash in sandy clay matrix. Thickness is 6 m at type. Disconformably overlies informal Core Creek sand (Pleistocene); unconformably underlies informal Outer Banks sand (Holocene). Pleistocene age (29,280-12,280 yrs old) from shells, wood, and peat.

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


Map showing publication footprint
  • Usage in publication:
    • Diamond City Formation
  • Modifications:
    • Revised
  • AAPG geologic province:
    • Atlantic Coast basin
Publication:

Wehmiller, J.F., Belknap, D.F., Boutin, B.S., Mirecki, J.E., Rahamin, S.D., and York, L.L., 1988, A review of the aminostratigraphy of Quaternary mollusks from United States Atlantic Coastal Plain sites, IN Esterbrook, D.J., ed., Dating Quaternary sediments: Geological Society of America Special Paper, 227, p. 69-110.


Summary:

Diamond City here referred to as Formation rather than Clay. Data of Belknap and others (1984: GSA Abs, v. 16, p. 2-3) indicate unit contains shells of several ages, from early to latest Pleistocene.

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 ([ ]).