- Usage in publication:
-
- Coventry phase
- Modifications:
-
- Original reference
- AAPG geologic province:
-
- New England province
Summary:
Coventry phase of Waits River limestone. Youngest phase of Waits River limestone. Is darker than the other 2 phases of that formation (the Washington phase and the typical phase), more carbonaceous, sometimes shaly, and never susceptible of polish. Traverses Irasburg, Coventry, and Newport, and dips uniformly to west. [Type locality is in Coventry, Orleans County, Irasburg quadrangle, northeastern Vermont], where it is uniformly of dark color, often pyritiferous, and compact. No fossils. Age is Ordovician.
Source: US geologic names lexicon (USGS Bull. 896, p. 533).
- Usage in publication:
-
- Coventry phase
- Modifications:
-
- Areal extent
- AAPG geologic province:
-
- New England province
Summary:
Coventry phase of Waits River limestone is dark-gray pyritiferous siliceous limestone which underlies half of Irasburg Township.
Source: US geologic names lexicon (USGS Bull. 896, p. 533).
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 ([ ]).