- Usage in publication:
-
- Delaware River flags
- Modifications:
-
- Named
- Dominant lithology:
-
- Flags
- AAPG geologic province:
-
- Appalachian basin
Summary:
Delaware River flags named. 1,200 to 1,430 ft thick in Pike and Monroe Cos., PA. Unit underlies Montrose red shale and overlies New Milford red sandstone. Includes Lackawaxen conglomerate and Delaware flags. In Wayne and Susquehanna report these beds were subdivided into several members under head of Paupack and New Milford sandstone groups, whose combined thicknesses were 585 ft, but these intervals were found to increase so enormously southward that the Wayne and Susquehanna Co. subdivisions could not be followed. Therefore author replaces the name Paupack and New Milford by a single geographical term which would include both the latter and at the same time suggest the nature of the beds. All the great flagstone quarries along Delaware River are found at different horizons in these beds. Good exposures along Delaware River between Narrowsburg and Pond Eddy.
Source: GNU records (USGS DDS-6; Reston GNULEX).
- Usage in publication:
-
- Delaware River Member*
- Modifications:
-
- Revised
- AAPG geologic province:
-
- Appalachian basin
Summary:
Upper Devonian Delaware River Flags Member of Catskill Formation changed to Delaware River Member [in report area].
Source: GNU records (USGS DDS-6; Reston GNULEX).
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 ([ ]).