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Map showing publication footprint
  • Usage in publication:
    • Mount Holly conglomerate
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Conglomerate
    • Gravel
  • AAPG geologic province:
    • Atlantic Coast basin
Publication:

Lewis, H.C., 1881, The Trenton gravel and its relation to the antiquity of man: Academy of Natural Sciences of Philadelphia Proceedings, v. 32, p. 296-309.


Summary:

Pg. 271, 288. Mount Holly conglomerate. On top of the hill at Mount Holly, Burlington County, southern New Jersey, is an identical conglomerate and gravel, composed of same materials as Bryn Mawr gravel in Pennsylvania. This conglomerate, which is named Mount Holly conglomerate, has the peculiar ferruginous glaze of Bryn Mawr gravel. It overlies Cretaceous marls and sands. From its abundance at Mount Holly, and in order to show its connection with the Pennsylvania deposits, we shall call the conglomerate of the Bryn Mawr gravel Mount Holly conglomerate. Age is Pliocene(?).

Source: US geologic names lexicon (USGS Bull. 896, p. 1435).


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 ([ ]).