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National Geologic Map Database

Geologic Unit: Macks

Usage:

No current usage.
(†Macks Formation (NC) abandoned.)


Geologic age:

Tertiary
Miocene


Type section, locality, area and/or origin of name:

Type section (subsurface): borehole, 0.3 mi north of junction of Route 50 and Johnston County Road 1168, and 0.1 mi east of NC 50, Johnston Co., NC. Typical outcrop is about 0.125 mi north of Benson. Macks Crossroads is 5 mi north of Benson (Daniels and others, 1966, 1972).


AAPG geologic province:

Atlantic Coast basin


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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).