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National Geologic Map Database
Map showing publication footprint
  • Usage in publication:
    • Green-pond-mountain conglomerate
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Conglomerate
    • Sandstone
  • AAPG geologic province:
    • Piedmont-Blue Ridge province
Publication:

Rogers, H.D., 1836, Report on the Geological Survey of the State of New Jersey: New Jersey Geological Survey Annual Report of the State Geologist, 157 p.


Summary:

Pg. 127. Green-pond-mountain conglomerate. Usually a bright-red sandstone, rather fine-grained, imbedding large water-worn pebbles, most commonly white quartz; sometimes the paste is more argillaceous. Constitutes Long Pond, Raffenberg, and Green Pond Mountains. Age is Silurian. [In some subsequent reports the conglomerate of Green Pond Mountain was wrongly designated as Potsdam sandstone.]
Named from Green Pond Mountains.

Source: US geologic names lexicon (USGS Bull. 896, p. 872); supplemental information from GNU records (USGS DDS-6; Reston GNULEX).


Map showing publication footprint
  • Usage in publication:
    • Green Pond Conglomerate*
  • Modifications:
    • Age modified
  • AAPG geologic province:
    • Piedmont-Blue Ridge province
Publication:

Volkert, R.A., Monteverde, D.H., and Drake, A.A., Jr., 1989, Bedrock geologic map of the Stanhope quadrangle, Sussex and Morris Counties, New Jersey: U.S. Geological Survey Geologic Quadrangle Map, GQ-1671, scale 1:24,000 [http://ngmdb.usgs.gov/Prodesc/proddesc_1185.htm]


Summary:

The Green Pond Conglomerate in the Green Pond syncline is correlative with the Shawangunk Formation of Early and Middle Silurian age, which crops out to the northwest along Kittatinny Mountain. Age is Early(?) and Middle(?) Silurian.

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


For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.

Asterisk (*) indicates usage by the U.S. Geological Survey. Other usages by state geological surveys.

"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 ([ ]).