U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database
Geologic Unit: Rosslyn
Map showing publication footprint
  • Usage in publication:
    • Rosslyn Member*
  • Modifications:
    • Named
  • Dominant lithology:
    • Conglomerate
    • Limestone
  • AAPG geologic province:
    • Cincinnati arch
Publication:

Ettensohn, F.R., Rice, C.L., Dever, G.R., Jr., and Chesnut, D.R., 1984, Slade and Paragon Formations; new stratigraphic nomenclature for Mississippian rocks along the Cumberland Escarpment in Kentucky, IN Contributions to stratigraphy: U.S. Geological Survey Bulletin, 1605-B, p. B1-B37.


Summary:

The Rosslyn Member of the Slade Formation, here named, consists of a basal conglomerate grading upward to thin-bedded calcarenite lenses interbedded with calcilutite. Strata of the Rosslyn were previously assigned to the Newman Limestone which is here excluded from the Cumberland Escarpment area of KY. The Rosslyn is restricted to central Powell and southern Montgomery Cos. Disconformably overlies the Cave Branch Bed; grades upward into the Tygarts Creek Member of the Slade. Thickness ranges from 0 to 2 m. Age is Late Mississippian.

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 ([ ]).

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 03:31:18 PM MDT