- Usage in publication:
-
- Vintage dolomite*
- Modifications:
-
- Named
- Dominant lithology:
-
- Dolomite
- AAPG geologic province:
-
- Piedmont-Blue Ridge province
Summary:
Named the Vintage dolomite for Vintage, Lancaster Co., southeastern PA. Consists of gray, heavy-bedded dolomite which weathers to whitish chalky surface, and knotty, dark-blue dolomite with argillaceous partings. Some beds are sparkling gray to blue mottled with siliceous and calcareous blebs that stand out on weathered surfaces. The base is a whitish, schistose, thin-bedded, impure dolomite containing muscovite flakes. Thickness is 500 to 650 feet. Overlies Antietam quartzite and underlies Kinzers formation. The Vintage is of Early Cambrian age.
Source: GNU records (USGS DDS-6; Reston GNULEX).
- Usage in publication:
-
- Vintage Formation
- Modifications:
-
- Overview
- AAPG geologic province:
-
- Piedmont-Blue Ridge province
Summary:
The Vintage Formation in the Lebanon Valley sequence of eastern PA consists of dark-gray, knotty, argillaceous dolomite with impure, light-gray marble at base. Overlies Antietam Formation and underlies Kinzers Formation.
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 ([ ]).