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Geologic Unit: Herbert
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Map showing publication footprint
  • Usage in publication:
    • Herbert conglomerate
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Sandstone
    • Conglomerate
  • AAPG geologic province:
    • Appalachian basin
Publication:

Nelson, W.A., 1925, The southern Tennessee coal field included in Bledsoe, Cumberland, Franklin, Grundy, Hamilton, Marion, Putnam, Rhea, Sequatchie, Van Buren, Warren, and White Counties: Tennessee Division of Geology Bulletin, no. 33-A, 329 p.


Summary:

Pg. 49-50, and under county descriptions. Herbert conglomerate. Basal member of Bonair sandstone. Consists of 40 to 150 feet of soft, light-yellow sandstone, coarse grained and in places conglomeratic. Underlies Eastland shale lentil of Bonair sandstone, and rests on Whitwell shale. [Age is Early Pennsylvanian (early Pottsville).]
Recognized in Bledsoe, White, Van Buren, Hamilton, and Cumberland Cos., southeastern TN. Best measurement was taken on Glade Creek just north of old road from [Herbert Domain], Bledsoe Co., to Sparta crosses this stream, [Pikeville quadrangle, scale 1:125,000], southeastern TN.

Source: US geologic names lexicon (USGS Bull. 896, p. 943).


Map showing publication footprint
  • Usage in publication:
    • Herbert member
  • Modifications:
    • Revised
  • AAPG geologic province:
    • Appalachian basin
Publication:

Wanless, H.R., 1939, Pennsylvanian stratigraphy of Tennessee, Georgia, and southeastern Kentucky [abs.]: Geological Society of America Bulletin, v. 50, no. 12, pt. 2, p. 1941-1942.


Summary:

Listed as Herbert member of Lee formation. [Age is Early Pennsylvanian (Pottsville).]

Source: US geologic names lexicon (USGS Bull. 1200, p. 1737-1738).


Map showing publication footprint
  • Usage in publication:
    • Herbert sandstone
  • Modifications:
    • Revised
  • AAPG geologic province:
    • Appalachian basin
Publication:

Moore, R.C. (chairman), 1944, Correlation of Pennsylvanian formations of North America; Chart No. 6, Correlation chart of Pennsylvanian rocks of North America: Geological Society of America Bulletin, v. 55, no. 6, p. 657-706., Prepared by the Pennsylvanian Subcommittee, R.C. Moore, chairman, under the auspices of the National Research Council Committee on Stratigraphy, C.O. Dunbar, chairman


Summary:

Chart 6 (column 17). Herbert sandstone. Correlation chart shows Herbert sandstone underlying Eastland formation and overlying Whitwell [shale]. [Age is Early Pennsylvanian (Pottsville).]

Source: US geologic names lexicon (USGS Bull. 1200, p. 1737-1738).


Map showing publication footprint
  • Usage in publication:
    • Herbert conglomerate member[†]
  • Modifications:
    • [Abandoned]
  • AAPG geologic province:
    • Appalachian basin
Publication:

Wilson, C.W., Jr., Jewell, J.W., and Luther, E.T., 1956, Pennsylvanian geology of the Cumberland Plateau: Tennessee Division of Geology Geologic Folio, 21 p.


Summary:

Pg. 4. Herbert conglomerate member of Bon Air sandstone. The conglomeratic phase of Newton sandstone in southern Cumberland and northern Bledsoe Counties was the type "Herbert conglomerate" erroneously considered by Nelson (1925) to be older than Newton. Shale thought to be between sandstones and named "Eastland shale" by Nelson is actually Whitwell shale; therefore, names "Herbert" and "Eastland" are discarded [abandoned].

Source: US geologic names lexicon (USGS Bull. 1200, p. 1737-1738).


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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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