U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database
Geologic Unit: Macks
Search archives
Map showing publication footprint
  • Usage in publication:
    • Macks Formation
  • Modifications:
    • Named
  • Dominant lithology:
    • Sand
  • AAPG geologic province:
    • Atlantic Coast basin
Publication:

Daniels, R.B., Gamble, E.E., Wheeler, W.H., and Nettleton, W.D., 1966, Coastal plain stratigraphy and geomorphology near Benson, North Carolina: Southeastern Geology, v. 7, no. 4, p. 159-182.


Summary:

Macks Formation named near Benson, NC. Described as silty, very fine sand that is relatively uniform. Thickness in type section (borehole) about 32 ft. Overlies Cretaceous strata. Underlies Pinehurst formation. Unit is late Miocene.

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


Map showing publication footprint
  • Usage in publication:
    • Macks Formation
  • Modifications:
    • Principal reference
  • Dominant lithology:
    • Loam
    • Clay
    • Gravel
  • AAPG geologic province:
    • Atlantic Coast basin
Publication:

Daniels, R.B., Gamble, E.E., Wheeler, W.H., and Holzhey, C.S., 1972, Annual meetings and field trip; field trip guidebook: Atlantic Coastal Plain Geological Association Field Trip Guidebook, Raleigh, NC, October 7-8, 1972, 36 p.


Summary:

Macks Formation holds key position for dating some events in upper Coastal Plain. Type section is designated at Neuse-Cape Fear Divide and NC Rte 50, Johnston Co., NC. Unit composed of sandy clay loam, purple clay beds, and gravel. Underlies Pinehurst Formation (late Miocene to early Pleistocene) and overlies unnamed Eocene(?) and Tuscaloosa Formation (Late Cretaceous). Age of Macks is late Miocene.

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


Map showing publication footprint
  • Usage in publication:
    • Macks†
  • Modifications:
    • Abandoned
  • AAPG geologic province:
    • Atlantic Coast basin
Publication:

Blackwelder, B.W., and Ward, L.W., 1979, Stratigraphic revision of the Pliocene deposits of North and South Carolina: South Carolina Division of Geology, Geologic Notes, v. 23, no. 1, p. 33-43.


Summary:

Macks Formation of Daniels and others (1966) is here abandoned and its rocks assigned to Lower Pliocene Yorktown Formation.

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


Search archives

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 ([ ]).

Accessibility FOIA Privacy Policies and Notices

USA Gov U.S. Department of the Interior | U.S. Geological Survey
Supported by the National Cooperative Geologic Mapping Program
Page Contact Information: Personnel
Page Last Modified: Thu 04 Apr 2024 03:25:13 PM MDT