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- Usage in publication:
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- Bonnerton Member*
- Modifications:
-
- Named
- Dominant lithology:
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- Limestone
- Sand
- Clay
- Coquina
- AAPG geologic province:
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- Atlantic Coast basin
Summary:
Advance copy (1978). Bonnerton Member of Pungo River Formation. Consists of white to light gray-green phosphatic limestone and sand, calcareous clay, and coquina. Thickness at type 32 feet (10 m). Conformably overlies Belhaven Phosphatic Sand Member of Pungo River; unconformably overlies Yorktown Formation. Age is middle Miocene.
Type section (subsurface): depth-interval 120 to 152 ft (37 to 46 m), corehole AU-1-GRL, near Aurora, Aurora 7.5-min quadrangle, Beaufort Co., NC. Named from the town of Bonnerton, Beaufort Co., NC (Albemarle embayment).
Source: Modified from 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 ([ ]).